WEBVTT 00:00:04.124 --> 00:00:07.700 I'm close to crowning Britain's best chain reaction machine builder, 00:00:07.725 --> 00:00:10.229 and I want to throw a proper celebration. 00:00:10.254 --> 00:00:13.029 Trouble is, I'm very lazy. 00:00:14.124 --> 00:00:15.500 Woohoo! 00:00:15.525 --> 00:00:18.390 Happily, I've got a solution... 00:00:18.415 --> 00:00:19.590 Sorry. 00:00:19.615 --> 00:00:22.420 ...because after four tough heats... 00:00:22.445 --> 00:00:24.029 No! No! 00:00:24.054 --> 00:00:25.260 Oh, my word. That's... 00:00:26.525 --> 00:00:28.260 You've done it! That's it! 00:00:28.285 --> 00:00:30.979 ...and two nail biting semifinals... 00:00:31.004 --> 00:00:33.540 You're are there. You are there. 00:00:33.565 --> 00:00:37.390 That was intense, and I didn't even build it. 00:00:37.415 --> 00:00:42.140 ...now it's the spectacular winner-takes-all final. 00:00:42.165 --> 00:00:45.700 And I've challenge my two brilliant teams of finalists to build 00:00:45.725 --> 00:00:47.981 jaw-dropping contraptions that throw 00:00:48.005 --> 00:00:50.260 a party without me moving a muscle. 00:00:50.285 --> 00:00:52.540 Boom. It's a stroke of genius. 00:00:52.565 --> 00:00:53.859 Nom, nom, nom, nom. 00:00:53.884 --> 00:00:55.700 The fastidious Field house Brothers... 00:00:55.725 --> 00:00:58.470 Oh! We want to win, don't we? We're going to. We're going to try. 00:00:58.495 --> 00:01:00.229 We're going to try our best to win. Yeah. 00:01:00.254 --> 00:01:02.590 ...will take on the daredevil Aviators. 00:01:02.615 --> 00:01:04.229 To win it? Wow, yeah. 00:01:04.254 --> 00:01:06.540 But whose machine will party hardest... 00:01:06.565 --> 00:01:08.859 Well done. Party started. 00:01:08.884 --> 00:01:13.540 ...and earn its makers the title of Crazy Contraptions champion? 00:01:13.565 --> 00:01:16.420 And that winning team is... 00:01:22.165 --> 00:01:25.340 These yet to be beaten rivals are preparing for battle 00:01:25.365 --> 00:01:27.310 in one of my many outbuildings... 00:01:27.335 --> 00:01:29.670 Here we go again. Just to get this far was astonishing. 00:01:29.695 --> 00:01:30.950 I never thought we'd be here. 00:01:30.975 --> 00:01:33.540 ...where I've provided them with identical workshops... 00:01:33.565 --> 00:01:34.516 Let's get to it. Yeah. Let's start 00:01:34.540 --> 00:01:36.029 the party. Party mode. 00:01:36.054 --> 00:01:38.420 ...and sets of rooms just like mine. 00:01:38.445 --> 00:01:40.060 Got loads of good ideas. 00:01:40.085 --> 00:01:42.670 If we can just make them now... Yeah. 00:01:42.695 --> 00:01:46.310 They've got three days to impress expert judge Zach with machines 00:01:46.335 --> 00:01:49.700 that throw a party in my replica bar and living room... 00:01:49.725 --> 00:01:51.540 You think one's a party sometimes. Yeah. 00:01:51.565 --> 00:01:54.420 Look yourself in your room, don't you? That's the best type of party. 00:01:54.445 --> 00:01:56.830 ...before triggering a confetti cannon in my garden. 00:01:56.855 --> 00:01:58.190 That's big enough, isn't it? 00:01:59.335 --> 00:02:01.029 That's got some good power. 00:02:01.054 --> 00:02:04.260 The teams will build and test a room per day and will be desperate 00:02:04.285 --> 00:02:07.260 to ensure their machine is the most spectacular when it runs 00:02:07.285 --> 00:02:09.979 across all three rooms in three days' time. 00:02:10.004 --> 00:02:12.950 So we've got three young guys over there. So that worries me a little, 00:02:12.975 --> 00:02:16.060 but maybe they ain't got the experience us guys have got. 00:02:16.085 --> 00:02:19.500 The Aviators are the unflappable Steve, 00:02:19.525 --> 00:02:20.779 Albert and Paul... 00:02:20.804 --> 00:02:22.500 Props fully down! 00:02:22.525 --> 00:02:25.951 Yeah. Check. ..who share a love of 00:02:25.975 --> 00:02:27.109 flying and some other things. 00:02:27.134 --> 00:02:30.190 We've got a disability, which puts us, I think, in a great position 00:02:30.215 --> 00:02:32.109 because we know about problem solving. 00:02:32.134 --> 00:02:34.420 We've got a good body between the three of us. Yeah. 00:02:34.445 --> 00:02:35.779 Just mix and match. 00:02:37.085 --> 00:02:39.909 On their way to winning their heat and semifinal, 00:02:39.934 --> 00:02:42.260 these guys were laid back daredevils... 00:02:42.285 --> 00:02:45.670 We put some good stuff together, actually. 00:02:45.695 --> 00:02:49.470 ...who often took big risks by leaving their chaotic 00:02:49.495 --> 00:02:52.109 flying themed machines untested, 00:02:52.134 --> 00:02:55.500 but cleverly avoided stress by drinking tea. 00:02:55.525 --> 00:02:57.060 Can we dunk a biscuit? 00:02:58.775 --> 00:03:00.220 You did it! You are there! 00:03:00.245 --> 00:03:02.620 If we can win it, it would be amazing. It would, wouldn't it? 00:03:02.645 --> 00:03:05.340 It'd be testament to what three disabled guys are capable of doing. 00:03:05.365 --> 00:03:07.779 After the obligatory lubrication... 00:03:07.804 --> 00:03:10.670 Priorities. Drink loads of tea. 00:03:10.695 --> 00:03:12.979 Well, I'm going to get cracking in a second. 00:03:13.004 --> 00:03:14.140 ...it's chocks away. 00:03:15.884 --> 00:03:17.700 They're like chopsticks, aren't they? 00:03:17.725 --> 00:03:22.190 Yorkshire man Steve is hoping to impress with a pool trick shot. 00:03:22.215 --> 00:03:23.700 That'll do something, won't it? 00:03:23.725 --> 00:03:25.979 I know it's a bit simple, but... 00:03:26.004 --> 00:03:28.909 ...simple's the best sometimes. 00:03:28.934 --> 00:03:32.670 Proud Scot Albert's preparing my sherry. 00:03:32.695 --> 00:03:34.390 I think this barrel's full. 00:03:34.415 --> 00:03:36.979 And motorbike mad Midlander Paul" 00:03:37.004 --> 00:03:40.580 So it should go, flip—flop, flip—flop, flip-flop. 00:03:40.605 --> 00:03:42.550 Little bit of visual, bit of a... 00:03:42.575 --> 00:03:45.140 Oh, he's joining mousetraps 00:03:45.165 --> 00:03:47.779 so they trigger each other and wave flags. 00:03:47.804 --> 00:03:50.060 I'm going to hate this machine, I can see it. 00:03:53.934 --> 00:03:55.630 I'm going to lose my patience with it, 00:03:55.655 --> 00:03:57.390 and it's all going to land up in the bin. 00:03:57.415 --> 00:03:59.779 They'll need to be on top form... 00:04:02.134 --> 00:04:03.859 Have you ever made a cup of tea before? 00:04:03.884 --> 00:04:06.420 ...because despite being tea amateurs... 00:04:08.965 --> 00:04:12.580 ...the Field house Brothers are machine professionals. 00:04:12.605 --> 00:04:16.220 Adam, Damian and Robin have been making stuff 00:04:16.245 --> 00:04:18.300 since they were...my height. 00:04:18.325 --> 00:04:19.863 When we were growing up, we always 00:04:19.887 --> 00:04:21.190 built tree houses, zip wires. Yeah. 00:04:21.215 --> 00:04:23.700 We didn't have a very good internet connection, 00:04:23.725 --> 00:04:26.020 so we just had to go outside and just do stuff 00:04:26.045 --> 00:04:28.029 with the materials around us. Yeah. 00:04:28.054 --> 00:04:31.580 Now they're grown-up engineers who won their heats and semis 00:04:31.605 --> 00:04:33.350 with precise builds... 00:04:33.375 --> 00:04:34.859 Nice. Bah—bah—bah—bah! 00:04:37.495 --> 00:04:41.859 ...that won over Zach with humour and intricacy. 00:04:41.884 --> 00:04:43.830 ALARM RINGS But they can be over-complicated, 00:04:43.855 --> 00:04:46.750 which makes them bicker and stress out... 00:04:46.775 --> 00:04:49.659 Surely you just get this bit...? No. We literally don't have time. 00:04:49.684 --> 00:04:52.029 ...particularly when younger brother Adam 00:04:52.054 --> 00:04:55.109 spends too long obsessing over details. 00:04:55.134 --> 00:04:56.710 Me and Damian had to vote on it. Did you? 00:04:56.735 --> 00:04:58.137 And we decided not to let Adam 00:04:58.261 --> 00:04:59.420 muck anything up this time. Yeah. 00:04:59.445 --> 00:05:01.801 Well, I don't muck things up. I come up with great ideas, 00:05:01.826 --> 00:05:03.698 and I execute them. That's the plan. 00:05:04.752 --> 00:05:06.488 Good plan. 00:05:06.513 --> 00:05:08.568 So no bickering today, then? 00:05:08.593 --> 00:05:11.008 No, we don't normally bicker, do we? No. Only Adam bickers. 00:05:11.033 --> 00:05:12.647 No, I never bicker. Never bickering... 00:05:12.672 --> 00:05:15.647 I personally don't bicker. But you do. Really? Yeah. Never bicker? 00:05:15.672 --> 00:05:18.008 You do. I've heard you loads, bickering. 00:05:18.033 --> 00:05:21.618 Perhaps wisely, they're working separately for now. 00:05:21.643 --> 00:05:22.977 Hello? Anybody in? 00:05:23.002 --> 00:05:25.897 Robin's in charge of starting the machine. 00:05:25.922 --> 00:05:29.818 So this gramophone is going to have a marble in it. 00:05:29.843 --> 00:05:32.208 We wind it up. This comes up. 00:05:34.083 --> 00:05:37.058 Drops down and then knocks over the glass. 00:05:37.083 --> 00:05:41.767 So I'm going to be cool, calm and collected the whole time. 00:05:41.792 --> 00:05:43.698 Everything's going to go to plan. 00:05:45.283 --> 00:05:46.647 It's a whisky barrel. 00:05:46.672 --> 00:05:48.088 Mm! 00:05:48.113 --> 00:05:50.977 Damian's combining whisky fumes and balloons 00:05:51.002 --> 00:05:53.288 to potentially intoxicate Zach... 00:05:53.313 --> 00:05:56.647 Party time! ..Into awarding them victory. 00:05:56.672 --> 00:05:59.008 Hey, that works! 00:05:59.033 --> 00:06:00.818 Oh, not bad. Nailed it. 00:06:00.843 --> 00:06:03.818 And Adam? He's almost certainly going to hurt someone. 00:06:03.843 --> 00:06:06.288 No-one stand in front of it, that's all I'm saying. 00:06:06.313 --> 00:06:08.008 Field house Brothers, hello. ALL: Hello. 00:06:08.033 --> 00:06:09.897 How are you all? Yeah, very well. Yes. Good. 00:06:09.922 --> 00:06:12.288 Well, you've all secured a well-earned place in the final, 00:06:12.313 --> 00:06:14.647 actually. Well done. And you're not hanging around 00:06:14.672 --> 00:06:17.008 because stuff's already going on. Taking it seriously. 00:06:17.033 --> 00:06:18.847 Have you scoped out your opposition yet, 00:06:18.872 --> 00:06:20.338 The Aviators? They are good. 00:06:20.363 --> 00:06:23.178 Yeah. Yes. They... They seem all right. They're, um... They do. 00:06:23.203 --> 00:06:26.458 They seem to have quite a lot of experience. They're very knowledgeable people. 00:06:26.483 --> 00:06:30.058 They know how to put stuff together. And we've heard some rumours that they're actually 00:06:30.083 --> 00:06:32.618 pretty good as well. So, yeah. Yeah. We just need to make sure 00:06:32.643 --> 00:06:35.458 that we bring our best A-game to the table. 00:06:35.483 --> 00:06:37.847 If we can get ours to work, I reckon we're going to win. 00:06:37.872 --> 00:06:42.897 The gauntlet has been thrown, but the machine is a monster. 00:06:42.922 --> 00:06:47.288 They want Robin's gramophone marble to knock shot glasses into a blood 00:06:47.313 --> 00:06:51.698 pressure monitor that squeezes a bottle and sinks a magnet to start 00:06:51.723 --> 00:06:55.538 a clock that knocks boxes down brewing bottles, that drops 00:06:55.563 --> 00:06:58.647 a pen down a chute to release Adam's dart, 00:06:58.672 --> 00:07:02.498 that pots a pool ball to trigger Damian's barrel balloons 00:07:02.523 --> 00:07:05.538 that push a bowling ball into the next room. 00:07:06.922 --> 00:07:08.338 Two hours have passed. 00:07:08.363 --> 00:07:10.288 Clock's, um, thing, trigger works. 00:07:10.313 --> 00:07:12.928 Well, it's going to work. That's good. Can fix that down. 00:07:12.953 --> 00:07:15.777 And progress is rapid — for now... 00:07:17.163 --> 00:07:18.857 On, off, on, off, on, off. 00:07:18.882 --> 00:07:21.647 ...because Adam's tackling the trickiest stage, 00:07:21.672 --> 00:07:24.647 a blood pressure monitor, which, by squeezing the bottle, 00:07:24.672 --> 00:07:28.107 will change his water pressure and make the straw sink. 00:07:28.132 --> 00:07:30.808 The straw has got a magnet on it, which is going to attract 00:07:30.833 --> 00:07:33.538 to this magnet and complete a circuit to start the clock. 00:07:33.563 --> 00:07:35.368 Let's see if that actually works. 00:07:37.243 --> 00:07:39.218 That's triggered the blood pressure monitor. 00:07:39.243 --> 00:07:41.568 That will squeeze the bottle, now. The straw will sink. 00:07:41.593 --> 00:07:43.088 Hey! 00:07:43.113 --> 00:07:45.647 Oh, but this ahs just attracted in the wrong place. 00:07:45.672 --> 00:07:47.647 It should be there. 00:07:47.672 --> 00:07:49.088 And then that'll go. 00:07:51.002 --> 00:07:54.568 It's going to work. This will require surgical precision... 00:07:54.593 --> 00:07:56.368 Have I mentioned I hate this machine? 00:07:58.393 --> 00:07:59.857 ...unlike this. 00:07:59.882 --> 00:08:02.218 Good morning, Aviators. ALL: Morning. 00:08:02.243 --> 00:08:03.928 I'm going to take up station behind your bar. 00:08:03.953 --> 00:08:06.727 It's just my natural place. Um, Paul, I've noticed you 00:08:06.752 --> 00:08:09.088 using that jigsaw on that piece of plastic. 00:08:09.113 --> 00:08:13.727 Can I suggest this team of all teams should avoid lopping off limbs? 00:08:13.752 --> 00:08:17.288 Um, and this, I can't help but notice, is running around me. 00:08:17.313 --> 00:08:19.647 So this will be a release for the balloons. 00:08:19.672 --> 00:08:22.058 The magic ball hits a little contact, 00:08:22.083 --> 00:08:25.058 and then the balloons will come up, will be released. That's clever. 00:08:25.083 --> 00:08:26.698 So as it passes those two contacts, 00:08:26.723 --> 00:08:30.008 it closes the switch. The ball itself is the connector. Yeah. 00:08:30.033 --> 00:08:34.448 Nice. So the Aviators are pulling out all the stops, too. 00:08:34.473 --> 00:08:37.218 Albert wants his balloon-releasing ball run 00:08:37.243 --> 00:08:38.727 to tip a yard of ale seesaw 00:08:38.752 --> 00:08:41.368 turning on a speaker that vibrates 00:08:41.393 --> 00:08:43.698 a goblet off a sheet of plastic 00:08:43.723 --> 00:08:45.258 that pots a pool ball, 00:08:45.283 --> 00:08:47.698 starting a dancing cactus toy, 00:08:47.723 --> 00:08:50.008 triggering Paul's mousetrap flags 00:08:50.033 --> 00:08:52.548 which cause hanging pictures to swing 00:08:52.573 --> 00:08:55.058 and knock a bucket into the next room. 00:08:55.083 --> 00:08:57.368 It's a pretty out—there party. 00:08:59.882 --> 00:09:01.368 What a cracking picture. 00:09:01.393 --> 00:09:04.618 At the halfway point, Steve's honouring the team they defeated 00:09:04.643 --> 00:09:07.258 in the semis in his final stage. 00:09:07.283 --> 00:09:10.368 Social media set me a bit of a challenge to include 00:09:10.393 --> 00:09:13.578 a photograph of those guys sat in the bar. 00:09:13.603 --> 00:09:14.808 You ready? 00:09:14.833 --> 00:09:17.418 I'm sure they're holding back the tears, 00:09:17.443 --> 00:09:19.727 and I think Paul will be soon, too. 00:09:19.752 --> 00:09:23.618 We should never have started... Never bothered with it. Yeah. 00:09:26.723 --> 00:09:28.578 He's starting to remind me of someone. 00:09:31.473 --> 00:09:33.777 Oh, no, it's failed. 00:09:33.802 --> 00:09:38.298 Zach, two great teams, and they're getting off to a very busy start. 00:09:38.323 --> 00:09:39.857 Yeah, absolutely. It's amazing 00:09:39.882 --> 00:09:41.857 seeing all these elements already built. 00:09:41.882 --> 00:09:44.522 Watching the Field houses, they have 00:09:44.546 --> 00:09:45.418 upped their game. Absolutely. 00:09:45.443 --> 00:09:48.618 One of the best things is a really cool scientific principle, 00:09:48.643 --> 00:09:50.977 Lenz's law, where you have a magnet on a stick, 00:09:51.002 --> 00:09:54.168 and as that travels down, it passes through magnetic pipes, 00:09:54.193 --> 00:09:56.727 that slows it down, speeds it up, slows it down, 00:09:56.752 --> 00:09:58.298 those nice little time delays. 00:09:58.323 --> 00:10:00.218 Really, really visual step, right there. 00:10:00.243 --> 00:10:04.138 Looking at the Aviators, they're bringing it up to another level. 00:10:04.163 --> 00:10:06.058 There's a speaker that's going to vibrate, 00:10:06.083 --> 00:10:08.857 having a little object to go down. And I love it. 00:10:11.443 --> 00:10:12.777 Solid. 00:10:18.193 --> 00:10:21.378 No? But it's not going to plan. 00:10:21.403 --> 00:10:25.248 The yard of ale seesaw isn't triggering the music. 00:10:25.273 --> 00:10:29.657 When it bumps down on to the play button, it's shutting down. 00:10:29.682 --> 00:10:31.698 They need a plan B. We need to do something else. 00:10:31.723 --> 00:10:34.268 Something, anything with a motor on here would be enough. 00:10:34.293 --> 00:10:36.657 Can we turn that blower thing for blowing pumps up, 00:10:36.682 --> 00:10:38.298 get it underneath, would it...? 00:10:38.323 --> 00:10:39.607 Let's try that. 00:10:41.913 --> 00:10:43.628 It's a good push. You can feel it 00:10:43.653 --> 00:10:44.888 all the way out here. 00:10:44.913 --> 00:10:46.448 Right, there we go. 00:10:46.473 --> 00:10:48.777 The balloon pump is now blowing the chalice 00:10:48.802 --> 00:10:50.808 rather than a speaker vibrating it. 00:10:50.833 --> 00:10:52.698 But they still need to join 00:10:52.723 --> 00:10:54.578 the pool ball to the cactus, 00:10:54.603 --> 00:10:57.378 and control those infuriating flags. 00:10:57.403 --> 00:10:59.657 Oh, and it smacked me in the face! 00:10:59.682 --> 00:11:00.657 That made me jump. 00:11:00.682 --> 00:11:04.058 Teams, you have two hours! 00:11:04.083 --> 00:11:05.218 Carry on. 00:11:05.243 --> 00:11:07.498 Geez, that's not very much time. 00:11:09.603 --> 00:11:11.987 The Field house Brothers still have issues, too. 00:11:12.012 --> 00:11:13.138 Almost goes in. 00:11:13.163 --> 00:11:17.527 It launches it much further forward than when I just nudge it off. 00:11:17.552 --> 00:11:20.737 Yeah. And the Aviators are now looking in better shape. 00:11:20.762 --> 00:11:21.888 It's going all right. 00:11:21.913 --> 00:11:24.248 We always think, "Oh, wow, we've got nowt done." 00:11:24.273 --> 00:11:27.018 But then it'll all just come together really quickly. 00:11:27.043 --> 00:11:29.777 In a typical display of sky-high confidence, 00:11:29.802 --> 00:11:34.138 former soldier Albert is taking a risk by adding more stuff, 00:11:34.163 --> 00:11:36.418 and it's not subtle. 00:11:36.443 --> 00:11:38.098 It's a mine, basically. 00:11:38.123 --> 00:11:39.527 It's a trip-wire mine. 00:11:39.552 --> 00:11:41.458 You put a CO2 gas canister on it. 00:11:41.483 --> 00:11:43.248 It's like the biggest party popper. 00:11:43.273 --> 00:11:46.298 I just like more and more and more and more and more. 00:11:46.323 --> 00:11:50.058 Teams, 15 minutes — no pressure. 00:11:50.083 --> 00:11:51.418 Does your watch work? 00:11:51.443 --> 00:11:54.378 My watch works. I hope your machine works. 00:11:54.403 --> 00:11:56.138 Come on! We've got this. 00:11:56.163 --> 00:11:57.818 Oh, the dartboard wasn't set up. 00:11:57.843 --> 00:12:00.218 There's always one little fiddly stage, isn't there? 00:12:00.243 --> 00:12:02.737 As the first test run of the final approaches... 00:12:02.762 --> 00:12:04.098 We got this. 00:12:04.123 --> 00:12:08.498 ...the Aviators still need to join the cactus to those mousetrap flags. 00:12:08.523 --> 00:12:10.298 Oh, that's very... Yeah, that's very... 00:12:10.323 --> 00:12:11.458 You ready? No, no. 00:12:11.483 --> 00:12:14.418 One minute to build time, teams. One minute left. 00:12:14.443 --> 00:12:16.737 If you're not set up in a minute, you're out. 00:12:16.762 --> 00:12:17.708 Is yours working yet? 00:12:17.733 --> 00:12:20.458 The Field house Brothers still need to perfect their trick shot 00:12:20.483 --> 00:12:22.818 and shot glasses. Last—minute sprint bodge. Yeah. 00:12:22.843 --> 00:12:24.293 That's what it's all about. Nothing 00:12:24.306 --> 00:12:25.140 works. Keep going. 00:12:25.203 --> 00:12:27.218 It's going to be great. Don't do the mousetraps, mate. 00:12:27.243 --> 00:12:29.578 I ain't touched it. Ah...! You're right near the string! 00:12:29.603 --> 00:12:30.818 Worked. 00:12:30.843 --> 00:12:32.578 You've only got ten seconds left. 00:12:32.603 --> 00:12:33.777 Don't panic! 00:12:33.802 --> 00:12:36.098 Nine, eight... You can't see it. 00:12:36.123 --> 00:12:37.824 ...seven... Yeah, but you know it's 00:12:37.848 --> 00:12:39.068 there. I know, buddy, I forgot. 00:12:39.093 --> 00:12:40.585 ...five... Maybe we should put 00:12:40.609 --> 00:12:41.498 another step in, guys. No! No! 00:12:41.523 --> 00:12:43.938 ...three, two, one. 00:12:43.963 --> 00:12:47.818 And that is the end of today's build time. Yes! 00:12:47.843 --> 00:12:50.138 Get 'em set and let's see 'em run. 00:12:50.163 --> 00:12:52.138 No, it's all right now, is that. That'll work. 00:12:52.163 --> 00:12:55.348 Testing first are the Aviators. 00:12:55.373 --> 00:12:57.818 Aviators, it has looked as though 00:12:57.843 --> 00:13:00.498 you really have put in a shift, there. 00:13:00.523 --> 00:13:03.178 We've used all the available time today. 00:13:03.203 --> 00:13:05.537 We're competing against some good guys. 00:13:05.562 --> 00:13:09.048 They want Albert's balloon run, a yard of ale seesaw, 00:13:09.073 --> 00:13:11.607 pool trick shot, dancing cactus 00:13:11.632 --> 00:13:14.968 and Paul's mousetrap flags to start the party, 00:13:14.993 --> 00:13:18.857 before Steve's picture frames knock a bucket into the next room. 00:13:18.882 --> 00:13:20.818 Zach, it's a good-looking machine, it's busy. 00:13:20.843 --> 00:13:23.178 Are there any bits of it that you're concerned about? 00:13:23.203 --> 00:13:25.537 I am worried about both the mousetraps breaking as well 00:13:25.562 --> 00:13:27.428 as they added a last-minute pyrotechnic, 00:13:27.453 --> 00:13:28.968 so I'm not quite sure about that. 00:13:28.993 --> 00:13:31.298 Well, it's time for the test run 00:13:31.323 --> 00:13:33.938 of stage one of your machine in the final. 00:13:33.963 --> 00:13:36.458 Good luck, gents. In your own time, start your machine. 00:13:36.483 --> 00:13:39.098 Albert, take it away, mate. Best of luck. Okey do key, here we go. 00:13:39.123 --> 00:13:40.178 Go for it, Albert. 00:13:49.812 --> 00:13:50.787 Lovely. 00:13:59.203 --> 00:14:01.537 So that's set off the pyrotechnic. 00:14:01.562 --> 00:14:04.328 And so now we have an air pump that's going to both vibrate 00:14:04.353 --> 00:14:06.218 and blow that cup off of the edge. 00:14:14.642 --> 00:14:16.938 Oh, this flag! 00:14:16.963 --> 00:14:18.898 Might need to be a little intervention. 00:14:18.923 --> 00:14:20.458 Remember, we're only testing. 00:14:24.483 --> 00:14:27.148 And we're into the next room! Well done. 00:14:27.173 --> 00:14:28.508 That's a nice machine. 00:14:28.533 --> 00:14:29.978 I like that. Thank you. 00:14:31.253 --> 00:14:33.537 So close to perfection. 00:14:33.562 --> 00:14:38.508 The party balloons, revised glass drop and Albert's last-minute party 00:14:38.533 --> 00:14:43.298 popper hit the spot, but the dreaded flags got tangled, preventing 00:14:43.323 --> 00:14:45.657 the mousetraps from triggering each other. 00:14:45.682 --> 00:14:47.428 It went well, I thought. We know what to do, 00:14:47.453 --> 00:14:49.688 so we'll remedy that tomorrow. Yeah. 00:14:49.713 --> 00:14:51.018 Little bit sketchy. 00:14:51.043 --> 00:14:54.338 Will their rivals have the edge on day one? 00:14:54.363 --> 00:14:55.508 Field house Brothers. 00:14:55.533 --> 00:14:58.508 There are some quite complex steps in this machine. 00:14:58.533 --> 00:14:59.768 You have upped your game a bit. 00:14:59.793 --> 00:15:01.588 Hopefully we've struck the right balance 00:15:01.613 --> 00:15:04.378 between ambition and reality. 00:15:04.403 --> 00:15:05.737 We'll soon see. 00:15:05.762 --> 00:15:10.148 Their party should see Adam's shot glasses make a heart rate monitor 00:15:10.173 --> 00:15:14.617 squeeze a bottle, Robin's box fall down brewing bottles, a dart 00:15:14.642 --> 00:15:19.018 trigger a trick shot, and Damian's balloons fly from the whisky barrel 00:15:19.043 --> 00:15:21.458 and knock a bowling ball into the next room. 00:15:21.483 --> 00:15:23.338 I love the fact they're using the Lenz law. 00:15:23.363 --> 00:15:25.867 The blood pressure monitor does up the complexity. 00:15:25.892 --> 00:15:27.508 It does change the reliability. 00:15:27.533 --> 00:15:31.378 Yeah. Well, if you are ready, start a party in that bar. 00:15:31.403 --> 00:15:32.378 Go on, Damien. 00:15:38.123 --> 00:15:41.537 So right now, the blood pressure monitors are squeezing that bottle. 00:15:41.562 --> 00:15:43.898 That changes the density in it... Oh, yeah. 00:15:43.923 --> 00:15:46.258 ...which causes the straw to sink. The magnet on the bottom, 00:15:46.283 --> 00:15:48.588 it completes the circuit, starting the clock. 00:15:48.613 --> 00:15:49.447 That's clever! 00:15:54.533 --> 00:15:57.588 And that pulls the card, allowing that little rod, using Lenz's law 00:15:57.613 --> 00:15:58.898 with the magnetism. 00:15:58.923 --> 00:16:00.098 So that's what slows you? 00:16:03.562 --> 00:16:04.948 Yes! 00:16:07.253 --> 00:16:09.537 And into the next room. Into the next room! 00:16:09.562 --> 00:16:11.867 Yes! Sorted! 00:16:11.892 --> 00:16:14.308 It was a work of art. 00:16:14.333 --> 00:16:17.737 Precise, clever, fun. 00:16:17.762 --> 00:16:20.258 A very Field house party. 00:16:20.283 --> 00:16:21.737 So far, so good. 00:16:21.762 --> 00:16:23.458 That's all we can say, really. 00:16:23.483 --> 00:16:25.818 We've got stiff competition. They're bright lads. 00:16:25.843 --> 00:16:28.178 We'll up us game tomorrow and then we're going to go for it. 00:16:28.203 --> 00:16:31.378 So the Field house Brothers have edged it on day one, 00:16:31.403 --> 00:16:33.617 but can they keep it up tomorrow? 00:16:41.519 --> 00:16:43.215 Day two of the final. 00:16:46.719 --> 00:16:48.494 Into the next room! Yes! 00:16:48.519 --> 00:16:51.965 Yesterday, the Field house Brothers' machine partied hardest 00:16:51.990 --> 00:16:53.855 and they're feeling confident. 00:16:53.880 --> 00:16:55.545 I'm excited. I'm not even nervous. 00:16:55.570 --> 00:16:57.155 We know what we're doing now, don't we? 00:16:57.180 --> 00:16:59.665 But the Aviators had a party to forget 00:16:59.690 --> 00:17:01.955 and have some making up to do. 00:17:01.980 --> 00:17:03.355 Oh, this flag! 00:17:03.380 --> 00:17:05.985 We've got to pull something special out of the bag, haven't we? 00:17:06.010 --> 00:17:08.344 So we've got something up our sleeves. 00:17:08.369 --> 00:17:10.075 Good morning, teams. 00:17:10.100 --> 00:17:13.714 Today, you must build across the sitting room, starting another 00:17:13.739 --> 00:17:15.625 party on the way. 00:17:15.650 --> 00:17:20.105 And I'd like you to incorporate a specific scientific principle, 00:17:20.130 --> 00:17:23.125 and it is with some trepidation that I announce 00:17:23.150 --> 00:17:24.985 that principle is... 00:17:25.010 --> 00:17:26.235 ...combustion. 00:17:26.260 --> 00:17:27.594 Yes! Yes! 00:17:27.619 --> 00:17:29.025 You have ten hours, teams. 00:17:29.050 --> 00:17:30.315 Crack on and good luck. 00:17:30.340 --> 00:17:31.625 We start a fire. Yeah! 00:17:31.650 --> 00:17:33.905 Combustion. I like that one. 00:17:33.930 --> 00:17:35.315 It'll be fine. 00:17:35.340 --> 00:17:36.545 Probably. 00:17:36.570 --> 00:17:39.355 What is it? If you think of Mission: Impossible 00:17:39.380 --> 00:17:41.235 and you saw the powder line. Gunpowder. 00:17:41.260 --> 00:17:42.955 Albert's in his element. 00:17:47.010 --> 00:17:50.155 And the Field house Brothers are running wild too. 00:17:50.180 --> 00:17:51.905 This guitar is going to go up in flames. 00:17:51.930 --> 00:17:53.155 I need professional help. 00:17:53.180 --> 00:17:54.847 So here's Shini with what makes 00:17:54.871 --> 00:17:56.344 fire burn. 00:17:56.369 --> 00:18:00.185 It's called the fire triangle — oxygen, fuel and heat. 00:18:00.210 --> 00:18:03.235 Watch what happens when all the oxygen is burned in this cup. 00:18:04.900 --> 00:18:05.875 The flame goes out. 00:18:07.260 --> 00:18:09.675 Now, if I light this row of matches, 00:18:09.700 --> 00:18:11.185 I'm actually burning fuel, 00:18:11.210 --> 00:18:14.435 and that fuel is wood and phosphorous in the match heads. 00:18:14.460 --> 00:18:17.035 But that flame doesn't jump across to this row of matches 00:18:17.060 --> 00:18:19.435 cos this gap has no fuel. 00:18:19.460 --> 00:18:21.105 Now, when I take the heat away... 00:18:23.369 --> 00:18:25.075 ...the flame also goes out. 00:18:25.100 --> 00:18:26.625 So that's the fire triangle — 00:18:26.650 --> 00:18:31.435 oxygen, fuel and heat, the three key components of combustion. 00:18:33.340 --> 00:18:35.625 I can make things go bang. 00:18:35.650 --> 00:18:38.705 Former soldier Albert's got three key components too. 00:18:38.730 --> 00:18:43.545 I've brought my little tripwires, CO2 cylinders, the little pyros. 00:18:43.570 --> 00:18:45.105 They're just good things to have. 00:18:45.130 --> 00:18:48.464 Nobody dares ask Albert where he gets all this from. 00:18:48.489 --> 00:18:50.905 And then we get a little bit of the magic powder 00:18:50.930 --> 00:18:53.235 and we just squash the ball right in. 00:18:54.700 --> 00:18:57.035 Whoa, that was cool! 00:18:57.060 --> 00:18:58.514 No time for slacking. 00:19:01.090 --> 00:19:03.594 It seems to have lit a fire in their bellies, 00:19:03.619 --> 00:19:05.594 with Steve sorting the start. 00:19:05.619 --> 00:19:07.985 When the bucket comes up, it's going to hit this, 00:19:08.010 --> 00:19:09.344 that's going to drop down, 00:19:09.369 --> 00:19:12.065 all the balls will roll out of there to activate something. 00:19:12.090 --> 00:19:14.344 I'm not going to test it a million times because I know it works. 00:19:16.489 --> 00:19:18.905 A fan-turned-propeller in the middle... 00:19:18.930 --> 00:19:20.514 And then are you going to put a cup on? 00:19:20.539 --> 00:19:22.425 You're going to have balls dropping off your blades. 00:19:22.450 --> 00:19:23.875 Well, that's fast enough, innit? 00:19:23.900 --> 00:19:26.625 ...and a bowling pin woodpecker, obviously. 00:19:26.650 --> 00:19:28.264 Nice little transitioning. 00:19:30.650 --> 00:19:34.264 I think they want Steve's shelf to roll balls into a bucket 00:19:34.289 --> 00:19:36.155 that releases the woodpecker, 00:19:36.180 --> 00:19:38.425 triggering Albert's combustion stage 00:19:38.450 --> 00:19:40.875 that fires a ball, pulling a card, 00:19:40.900 --> 00:19:43.425 which starts a plane that knocks cups, 00:19:43.450 --> 00:19:46.185 switching on a glitter ball that winds a string, 00:19:46.210 --> 00:19:48.464 starting the ceiling fan propeller, 00:19:48.489 --> 00:19:50.905 which releases balloons and triggers 00:19:50.930 --> 00:19:54.425 a slingshot to fire a giant balloon into the garden. 00:19:54.450 --> 00:19:56.115 Good luck to them. 00:19:56.140 --> 00:19:57.235 There you go. 00:19:57.260 --> 00:20:00.955 After two hours, this seems more ambitious than yesterday... 00:20:02.060 --> 00:20:04.035 The glitter ball slowly turns round. 00:20:04.060 --> 00:20:05.985 It's going to pull this billiard ball off the table. 00:20:06.010 --> 00:20:09.394 ...so I really hope they also decide to test it... 00:20:09.419 --> 00:20:10.594 There you go. 00:20:10.619 --> 00:20:13.185 ...because Albert has a fire—starting rival. 00:20:13.210 --> 00:20:14.795 This is our use of combustion. 00:20:14.820 --> 00:20:16.625 We're going to have rocket candles, a chain reaction. 00:20:16.650 --> 00:20:19.035 The end of that one's going to light this one, which is then going to 00:20:19.060 --> 00:20:21.394 light that one, which is then going to light that one, that one, that one. 00:20:21.419 --> 00:20:23.675 Robin's hoping to impress Zach... 00:20:23.700 --> 00:20:25.185 I'm a big fan of this, actually. 00:20:25.210 --> 00:20:27.425 ...with some fan-powered bunting. 00:20:28.450 --> 00:20:29.835 I'm happy with that. 00:20:29.860 --> 00:20:32.315 But Adam may have had too much Ribena. 00:20:32.340 --> 00:20:37.235 I'm going to try and get this sofa to eat a remote control. 00:20:37.260 --> 00:20:40.065 I can easily see him spending all day on it. 00:20:40.090 --> 00:20:41.675 I'm sure it'll be fine. 00:20:41.700 --> 00:20:43.425 Om-nom-nom-nom-nom! 00:20:43.450 --> 00:20:45.505 "I want to eat your remote!" 00:20:45.530 --> 00:20:48.425 They want the bowling ball from the bar to knock a bowling pin 00:20:48.450 --> 00:20:49.875 that drops a party banner, 00:20:49.900 --> 00:20:52.905 starting the combustion stage of sparklers on a guitar 00:20:52.930 --> 00:20:55.264 that burn a string that triggers a fan 00:20:55.289 --> 00:20:58.545 to reel in bunting, which starts Adam's chomping sofa 00:20:58.570 --> 00:21:00.875 that powers a solar-powered car. 00:21:00.900 --> 00:21:03.195 But they haven't thought of how to enter the garden yet. 00:21:04.700 --> 00:21:06.394 This weight is going to drop. 00:21:06.419 --> 00:21:09.755 Open mouth, and then we'll release this weight 00:21:09.780 --> 00:21:12.264 and that'll come back up and close the mouth. 00:21:12.289 --> 00:21:14.755 When Adam does this, you know that he's going to be spending 00:21:14.780 --> 00:21:16.035 at least another three hours. 00:21:16.060 --> 00:21:18.344 Well, it's quite a complicated mechanism I need to make here. 00:21:18.369 --> 00:21:19.905 It's not simple. 00:21:19.930 --> 00:21:21.985 It's incredibly ambitious, 00:21:22.010 --> 00:21:25.675 but four hours into the day, is it working? 00:21:25.700 --> 00:21:28.235 Ready? Yeah. Go on. 00:21:28.260 --> 00:21:29.705 Opens its mouth. 00:21:29.730 --> 00:21:32.065 I'm not sure why it didn't trigger it. 00:21:32.090 --> 00:21:33.315 Meanwhile... 00:21:33.340 --> 00:21:35.675 Oh! I thought you were holding it! I was! 00:21:35.700 --> 00:21:39.425 Send the guy with no legs to go and look through the woodpile. 00:21:39.450 --> 00:21:41.875 Paul's adding more stuff. 00:21:41.900 --> 00:21:44.235 We've got some cans of silly string, 00:21:44.260 --> 00:21:46.985 so we've rigged up a little release here. 00:21:48.780 --> 00:21:50.394 There you go. Will I place that...? 00:21:50.419 --> 00:21:53.115 The falling frog should pull a string 00:21:53.140 --> 00:21:55.394 that triggers the propeller. 00:21:55.419 --> 00:21:56.675 Yea h, that's cool. 00:21:59.419 --> 00:22:00.394 Oh, no. 00:22:03.810 --> 00:22:05.474 Both teams are walking a tightrope... 00:22:05.499 --> 00:22:07.274 I just did a tester of these fans 00:22:07.299 --> 00:22:09.235 and the weight was too strong for it... 00:22:09.260 --> 00:22:12.344 ...balancing complexity with reliability... 00:22:12.369 --> 00:22:15.705 ...so I'm going to have to give it some high-tensile nylon cord. 00:22:15.730 --> 00:22:18.394 ...and neither want to rein in their ideas. 00:22:19.980 --> 00:22:21.505 Field houses, hello. 00:22:21.530 --> 00:22:22.594 Hello. Hello. 00:22:22.619 --> 00:22:25.235 Erm, chaps, first things first — what is that? 00:22:25.260 --> 00:22:26.705 This is the Ames window. 00:22:26.730 --> 00:22:29.785 When this spins round, it looks like it's spinning back on itself. 00:22:29.810 --> 00:22:32.865 Right. It tricks your eye because of the perspective effect. 00:22:32.890 --> 00:22:34.065 It should blow your mind. 00:22:34.090 --> 00:22:35.555 How long has he spent on that? 00:22:35.580 --> 00:22:37.865 He hasn't spent all his day on this, actually. Yeah. 00:22:37.890 --> 00:22:38.724 It doesn't still work. 00:22:38.730 --> 00:22:40.555 OK. Are you going to finish? 00:22:40.580 --> 00:22:42.474 I think we should be OK. 00:22:42.499 --> 00:22:45.955 I admire Adam's confidence, but time is ticking 00:22:45.980 --> 00:22:47.755 and this is the final, 00:22:47.780 --> 00:22:50.115 which rather begs the question... 00:22:50.140 --> 00:22:51.955 ...why are you guys loafing about in here? 00:22:51.980 --> 00:22:54.635 You've got two hours left, teams! 00:22:54.660 --> 00:22:56.675 Two hours! Oh, plenty of time. 00:22:56.700 --> 00:22:58.035 Go on! 00:22:58.060 --> 00:23:00.555 Go back to your own rooms! I haven't finished me tea! 00:23:00.580 --> 00:23:02.425 Away you go. Goodbye. Carry on. Good luck. 00:23:02.450 --> 00:23:04.035 Usual? Yes, I will. Thank you. 00:23:04.060 --> 00:23:06.035 Yeah. Sherry. Cheers. Sherry it is. 00:23:08.340 --> 00:23:11.195 Both teams are a long way from finishing. 00:23:12.580 --> 00:23:16.144 Ooh! Oh, no. Took me ages to do that. 00:23:16.169 --> 00:23:20.144 It's been going off too early and I don't know why. 00:23:20.169 --> 00:23:23.115 And the Field houses have just decided to finish with a 00:23:23.140 --> 00:23:26.315 chemical reaction, triggered by the solar-powered car. 00:23:26.340 --> 00:23:29.115 So the lights are going to start like that. Start swinging. 00:23:29.140 --> 00:23:31.585 When the light goes over the car, it powers it, 00:23:31.610 --> 00:23:35.995 and that's going to hit into a switch on this Meccano car, 00:23:36.020 --> 00:23:38.354 and that's going to pull a bung out of a beer bottle. 00:23:38.379 --> 00:23:41.715 Liquid pours into the glass that's got some sodium polyacrylate in it. 00:23:41.740 --> 00:23:46.115 The chemical, which is usually found in nappies, needs time to solidify 00:23:46.140 --> 00:23:50.474 the water before the car pulls the glass over or it'll spill instead 00:23:50.499 --> 00:23:52.394 of rolling into the next room. 00:23:52.419 --> 00:23:53.835 That's the idea, anyway! 00:23:55.379 --> 00:23:56.755 I'm confident it'll work. 00:23:56.780 --> 00:24:00.224 And the Aviators are taking a big risk too. 00:24:00.249 --> 00:24:02.555 These guys will want to do a full test 00:24:02.580 --> 00:24:04.915 cos resetting the pyro takes... 00:24:06.249 --> 00:24:07.425 ...a bit of time. 00:24:08.860 --> 00:24:11.325 Zach, the Aviators have a very busy-looking machine. 00:24:11.350 --> 00:24:12.715 What's caught your eye in there? 00:24:12.740 --> 00:24:15.195 The thing I do absolutely love is how they've incorporated 00:24:15.220 --> 00:24:16.325 that scientific principle. 00:24:16.350 --> 00:24:19.715 That ball is going to get launched to the ceiling, pulling a card 00:24:19.740 --> 00:24:22.585 out of the plane, pushing it through into those cups. 00:24:22.610 --> 00:24:23.835 So have they done any testing? 00:24:23.860 --> 00:24:27.325 They are afraid to test it because of how hard it is to reset. 00:24:27.350 --> 00:24:29.685 OK, that's an interesting tactic. That's a new one. 00:24:29.710 --> 00:24:32.354 Meanwhile, over here with the Field houses... 00:24:32.379 --> 00:24:35.785 Yes. This is a very unusual scenario in that they're still 00:24:35.810 --> 00:24:38.144 problem-solving quite a bit of their machine. 00:24:38.169 --> 00:24:41.195 I've watched Adam struggle with that couch all day long. 00:24:41.220 --> 00:24:42.505 Have they overreached themselves? 00:24:42.530 --> 00:24:44.115 Maybe we have found their limit. 00:24:46.740 --> 00:24:48.035 Everything else works. 00:24:48.060 --> 00:24:50.075 Just this. It should work. 00:24:50.100 --> 00:24:52.075 It doesn't work. 00:24:52.100 --> 00:24:53.435 Teams! 00:24:53.460 --> 00:24:54.915 It's not me doing this. 00:24:54.940 --> 00:24:58.045 It's time — you have one minute left. 00:24:58.070 --> 00:25:00.555 There's a lot of things untested here. 00:25:00.580 --> 00:25:01.665 OK, that's it. 00:25:03.780 --> 00:25:05.075 Lovely jubbly. 00:25:05.100 --> 00:25:08.795 The teams have gone big, but will their abilities 00:25:08.820 --> 00:25:10.075 match their ambition? 00:25:10.100 --> 00:25:11.795 Hope and pray. 00:25:11.820 --> 00:25:16.915 Five, four, three, two, one... 00:25:16.940 --> 00:25:20.585 And that is your build time for today finished. 00:25:22.530 --> 00:25:27.835 Testing their living room party first are Steve, Paul and Albert. 00:25:27.860 --> 00:25:29.435 Aviators, now, rumour has reached me, 00:25:29.460 --> 00:25:30.715 I'm not saying from where... 00:25:30.740 --> 00:25:32.404 WHISPERS: It was him! 00:25:32.429 --> 00:25:35.505 ...that you were too scared to test-run it. 00:25:35.530 --> 00:25:37.115 It's hard to reset some of that stuff. 00:25:37.140 --> 00:25:39.435 You're scared of your own creation. A little bit. 00:25:39.460 --> 00:25:40.865 OK. Is it going to work? 00:25:40.890 --> 00:25:42.435 Oh, 100%. 00:25:42.460 --> 00:25:46.835 We'll soon see, because among the web of string, Steve's ball bearing 00:25:46.860 --> 00:25:50.404 shelf should fire Albert's combustion-powered ball, making 00:25:50.429 --> 00:25:54.224 a plane topple cups, starting a party—themed mirror ball 00:25:54.249 --> 00:25:58.115 that triggers Paul's silly string frog to release party balloons 00:25:58.140 --> 00:26:01.665 and send a big balloon into the garden. 00:26:01.690 --> 00:26:03.515 Zach, it needs to be tested. 00:26:03.540 --> 00:26:06.024 So...hope. Right. 00:26:06.049 --> 00:26:09.835 Gents, this is doubly exciting because nobody's ever seen this, 00:26:09.860 --> 00:26:11.474 including the guys who built it. 00:26:11.499 --> 00:26:12.835 OK, in your own time. 00:26:12.860 --> 00:26:14.024 Carry on. 00:26:14.049 --> 00:26:15.435 All right, Steve, let's go for it. 00:26:15.460 --> 00:26:17.154 Here we go. Take off. Good luck. 00:26:23.299 --> 00:26:24.795 That's the combustion worked. 00:26:26.179 --> 00:26:29.555 And it doesn't look like it pulled the car out of the plane. 00:26:29.580 --> 00:26:30.875 Maybe an intervention. 00:26:32.330 --> 00:26:33.715 Oh, that's some more combustion! 00:26:33.740 --> 00:26:36.075 This is cool! That is really cool. 00:26:38.150 --> 00:26:40.435 That hit a remote that's now causing the disco ball 00:26:40.460 --> 00:26:42.154 to start spinning around. Right. 00:26:42.179 --> 00:26:44.635 So the chain is pre-tensioning on the glitter ball. 00:26:44.660 --> 00:26:47.555 OK. And that'll pull the snooker ball off. OK. 00:26:49.020 --> 00:26:51.305 It's got to come in a second. It's got to come. 00:26:51.330 --> 00:26:52.515 There we go. 00:26:52.540 --> 00:26:53.715 Something happened. 00:26:53.740 --> 00:26:57.024 But frog boy, he's not on a hair-trigger. 00:26:57.049 --> 00:26:59.354 It sort of fizzled out. 00:26:59.379 --> 00:27:02.875 The silly string missed the frog and it's going from bad... 00:27:02.900 --> 00:27:05.154 Oh, the balloons! 00:27:05.179 --> 00:27:06.595 Yeah. ..to worse. 00:27:07.690 --> 00:27:09.125 Balloons! 00:27:09.150 --> 00:27:11.404 Oh, no. It's got caught. 00:27:11.429 --> 00:27:14.075 You guys know how to throw a party! 00:27:15.460 --> 00:27:19.945 The Aviators' machine had promising parts, but their fear of testing 00:27:19.970 --> 00:27:23.635 them all together came back to bite them. 00:27:23.660 --> 00:27:24.715 I feel a bit deflated. 00:27:24.740 --> 00:27:26.665 These guys are like, "Right, we're back on it tomorrow 00:27:26.690 --> 00:27:28.205 "and we'll solve it," which is great. 00:27:28.230 --> 00:27:30.635 There's nothing there that can't be changed. 00:27:30.660 --> 00:27:34.305 The pressure seems to have got to the Field house Brothers too. 00:27:34.330 --> 00:27:37.665 You have, I hate to say, an altogether more sombre air 00:27:37.690 --> 00:27:39.515 than we're accustomed to finding. 00:27:39.540 --> 00:27:42.555 Yeah. I'm not stressed this time. I'm just a little bit disappointed. 00:27:42.580 --> 00:27:43.875 Oh, dear. Yeah. 00:27:43.900 --> 00:27:46.305 The chomping sofa is the problem, 00:27:46.330 --> 00:27:49.995 because Adam's not confident it'll work properly. 00:27:50.020 --> 00:27:53.875 Hopefully, the cascading party banner, flaming guitar, 00:27:53.900 --> 00:27:57.234 fan-powered bunting, mind-bending Ames window, 00:27:57.259 --> 00:28:00.205 solar-powered car and falling beer bottle 00:28:00.230 --> 00:28:02.745 will still make a party to remember. 00:28:02.770 --> 00:28:06.435 Jack? Yeah, it's a great machine. It fills the room. 00:28:06.460 --> 00:28:08.745 But you know what? It hasn't been tested. 00:28:08.770 --> 00:28:09.845 It's going to start a party. 00:28:09.870 --> 00:28:12.484 I don't know how complete that party is going to be. OK, right. 00:28:12.509 --> 00:28:14.795 Good luck. In your own time, start your machine. 00:28:14.820 --> 00:28:17.715 Go on, show us how it's done! Go! 00:28:18.770 --> 00:28:20.024 Yes! 00:28:22.490 --> 00:28:24.315 So they light each other one by one. 00:28:24.340 --> 00:28:26.955 That burns through the string and then that starts the Ames window. 00:28:31.340 --> 00:28:33.635 Oh! Right. Oh, the bunting is coming out. 00:28:33.660 --> 00:28:35.435 Oh, that's so cool. 00:28:35.460 --> 00:28:38.075 I feel I like the bunting. That is good. 00:28:38.100 --> 00:28:40.075 When it goes all the way, it's going to pull 00:28:40.100 --> 00:28:43.234 and trigger the couch, which... We'll see if it works. 00:28:43.259 --> 00:28:44.284 Oh, I see. 00:28:46.740 --> 00:28:48.315 Oh. yes'.! 00:28:48.340 --> 00:28:51.234 What? Kind of skipped a step? 00:28:51.259 --> 00:28:52.484 Something's happening. 00:28:52.509 --> 00:28:55.995 So the bottle poured. Oh, are we on the final transition? 00:28:56.020 --> 00:28:58.354 Yeah. That's a chemical transition. Yeah. 00:28:58.379 --> 00:29:00.715 So now this just has to pull the cup over 00:29:00.740 --> 00:29:03.034 and it should roll into the next room. 00:29:03.059 --> 00:29:04.435 Come on. Oh! 00:29:04.460 --> 00:29:06.675 Just give it a little extra pull. 00:29:09.950 --> 00:29:12.205 Well done, chaps, with one intervention. 00:29:14.770 --> 00:29:17.395 It looked like this party had just one hiccup, 00:29:17.420 --> 00:29:20.925 when the last-minute Meccano car didn't tip the glass. 00:29:20.950 --> 00:29:24.075 But Adam's not completely off the hook. 00:29:24.100 --> 00:29:26.715 A few things didn't go as expected, to be honest. 00:29:26.740 --> 00:29:30.565 Because the sofa's mouth didn't close after it ate the remote. 00:29:30.590 --> 00:29:33.284 There's definitely a lot of things we need to concentrate on 00:29:33.309 --> 00:29:35.645 and we need to leave ourselves that buffer time 00:29:35.670 --> 00:29:37.185 for testing the whole machine as well. 00:29:37.210 --> 00:29:40.075 Both teams stretched themselves too far today, 00:29:40.100 --> 00:29:43.955 but who will come out on top during the all—important full run 00:29:43.980 --> 00:29:46.284 across all three rooms tomorrow? 00:29:46.309 --> 00:29:48.755 I think we've scared them a little bit because 00:29:48.780 --> 00:29:51.755 we're not frightened to do lots of different things. 00:29:51.780 --> 00:29:54.234 If we don't give ourselves enough time tomorrow 00:29:54.259 --> 00:29:56.595 to test the machine fully and they do, then... 00:29:56.620 --> 00:29:58.875 Basically everything, it's all to play for. 00:30:06.340 --> 00:30:09.085 Today, we'll find our champions. 00:30:10.380 --> 00:30:12.635 This is going to be intense. 00:30:12.660 --> 00:30:13.885 Morning, teams. 00:30:13.910 --> 00:30:17.244 Welcome to the most important ten hours of this competition. 00:30:17.269 --> 00:30:22.244 Today was always going to be tough, but thanks to yesterday's failures, 00:30:22.269 --> 00:30:23.835 it's going to be a lot tougher 00:30:23.860 --> 00:30:26.315 because you've both got serious issues to fix 00:30:26.340 --> 00:30:30.195 before you can even think about starting a party in my garden, 00:30:30.220 --> 00:30:33.635 let alone running your machines in their entirety. 00:30:33.660 --> 00:30:36.075 What you don't need is more to do. 00:30:37.550 --> 00:30:41.034 Sadly, I am contractually obliged to give you more to do. 00:30:41.059 --> 00:30:43.555 In your workshop, you will find a mystery object 00:30:43.580 --> 00:30:46.325 which you must incorporate into today's build. 00:30:46.350 --> 00:30:50.885 You have ten hours until Zach judges and we find a winner. Good luck. 00:30:50.910 --> 00:30:51.994 Get on with it. 00:30:52.019 --> 00:30:53.605 Here we go. Bit scary. 00:30:53.630 --> 00:30:55.605 I don't know if it's going to fly by 00:30:55.630 --> 00:30:57.475 or feel like 100 hours. I don't know. 00:30:57.500 --> 00:30:59.395 Oh... Oh, God. 00:30:59.420 --> 00:31:01.085 Look at the size of this! 00:31:01.110 --> 00:31:05.965 Oh! Big fat hammer. Nice. Oh, that's proper weighty, isn't it? 00:31:05.990 --> 00:31:07.685 Let go of it, mate. There we go. 00:31:09.139 --> 00:31:10.244 Hey! 00:31:10.269 --> 00:31:11.525 It works. 00:31:11.550 --> 00:31:14.755 So what science is there in a socking great mallet? 00:31:17.860 --> 00:31:19.445 At the end of the day, a mallet 00:31:19.470 --> 00:31:21.805 is just a heavy weight on the end of a stick. 00:31:21.830 --> 00:31:25.685 What I find most interesting is turning a mallet on its head 00:31:25.710 --> 00:31:28.555 and basically creating a pendulum. 00:31:28.580 --> 00:31:31.044 Now, pendulums are really fascinating 00:31:31.069 --> 00:31:34.164 because there's this conversion of energy that goes on. 00:31:34.189 --> 00:31:37.835 If I lift the mallet head up to its highest point, 00:31:37.860 --> 00:31:42.244 I'm creating the maximum amount of gravitational potential energy. 00:31:42.269 --> 00:31:45.475 And when I release it, that gravitational potential energy 00:31:45.500 --> 00:31:49.885 converts into kinetic energy, or energy in motion. 00:31:49.910 --> 00:31:53.405 Now, if something gets in the way of that, 00:31:53.430 --> 00:31:55.715 it could have a knock-on effect, 00:31:55.740 --> 00:31:58.605 and that could be useful for moving another object 00:31:58.630 --> 00:32:00.525 or even smashing it to pieces. 00:32:00.550 --> 00:32:02.355 Depends on what the teams decide. 00:32:05.300 --> 00:32:06.555 S—U... 00:32:07.630 --> 00:32:10.114 So, Adam, I've actually found the real use for this hammer 00:32:10.139 --> 00:32:11.914 is motivation for you today. 00:32:11.939 --> 00:32:14.275 Harsh. But Adam is back in the lounge, 00:32:14.300 --> 00:32:16.965 still trying to make his sofa's mouth close. 00:32:20.790 --> 00:32:24.555 Yeah. I think they're having a lot of fun picking on me this morning. 00:32:24.580 --> 00:32:26.405 Steve's in repair mode, too... 00:32:26.430 --> 00:32:28.405 I know what I'm doing. I've got my checklist. 00:32:28.430 --> 00:32:31.805 ...adjusting the sticky frog, web of string and propeller 00:32:31.830 --> 00:32:33.355 that failed yesterday. 00:32:33.380 --> 00:32:37.765 So all being well, they should land in there. 00:32:37.790 --> 00:32:40.794 Then we get the little effect that we need, the bounce. That works. 00:32:40.819 --> 00:32:43.685 Time today is the key word, innit? 00:32:43.710 --> 00:32:46.195 Yeah. We'll try not to be overly ambitious today. 00:32:46.220 --> 00:32:48.914 Adam refines his pin mechanism, again. 00:32:48.939 --> 00:32:52.124 Strategy today, keep it very, very simple. 00:32:52.149 --> 00:32:55.075 So it looks impressive, but actually it's quite simplistic. 00:32:55.100 --> 00:32:57.765 That's no way to talk about your brother. 00:32:57.790 --> 00:33:01.075 I made this old—fashioned lavatory. 00:33:01.100 --> 00:33:03.435 These panels are all going to fall off 00:33:03.460 --> 00:33:06.435 to reveal Richard Hammond sitting on the toilet. 00:33:06.460 --> 00:33:07.965 Yeah, it's going to be good. 00:33:07.990 --> 00:33:10.325 But is this a party? 00:33:10.350 --> 00:33:13.405 In the end, they want a golf ball club to chip a ball 00:33:13.430 --> 00:33:17.044 that tips a shovel, releasing three joined-up garden shears 00:33:17.069 --> 00:33:19.885 to snip at a string that collapses the cubicle 00:33:19.910 --> 00:33:21.965 to reveal mini me on the toilet 00:33:21.990 --> 00:33:24.325 and release a loo roll that falls onto the mallet, 00:33:24.350 --> 00:33:26.075 triggering the confetti cannon. 00:33:28.019 --> 00:33:30.405 That's it. Yeah, it does work. 00:33:30.430 --> 00:33:34.075 Two hours in, and the garden is coming together. 00:33:34.100 --> 00:33:36.325 Well, falling apart. 00:33:38.939 --> 00:33:40.155 Nice. 00:33:40.180 --> 00:33:42.794 While their rivals seem to be going rogue. 00:33:42.819 --> 00:33:44.275 Nothing's happened. 00:33:44.300 --> 00:33:45.914 Nothing has come out of the garden. 00:33:45.939 --> 00:33:49.205 Even the champagne pyramid is still there on the table. 00:33:49.230 --> 00:33:52.794 I've never seen such a difference between two teams at the same stage 00:33:52.819 --> 00:33:54.765 in the same competition. 00:33:54.790 --> 00:33:56.435 So frame trap... 00:33:56.460 --> 00:33:58.794 So that's going to trigger... trigger that. Yeah. 00:33:58.819 --> 00:34:01.914 And it's because on the final day of the final, 00:34:01.939 --> 00:34:04.325 the Aviators have had an epiphany. 00:34:04.350 --> 00:34:07.124 Are we going to test the first two rooms? Yeah, we'll do some testing. 00:34:07.149 --> 00:34:08.244 I think that's a word. 00:34:08.269 --> 00:34:09.794 It feels a bit strange in the mouth. 00:34:09.819 --> 00:34:10.965 Test... 00:34:10.990 --> 00:34:12.715 You live and you learn, don't you? 00:34:12.740 --> 00:34:14.044 I'm lost for words. 00:34:14.069 --> 00:34:16.914 Balloons, connected. Aircraft... Card in place. 00:34:16.939 --> 00:34:18.635 So we need to test that, don't we? 00:34:18.660 --> 00:34:20.355 The chaps are on fire. 00:34:21.740 --> 00:34:24.275 But their rivals have had a revelation too. 00:34:27.630 --> 00:34:29.435 Wahey! Did it actually work? It works. 00:34:29.460 --> 00:34:32.325 Only took you a whole day longer than you expected. 00:34:32.350 --> 00:34:35.485 Adam's now on a mission to overcomplicate the mallet. 00:34:36.540 --> 00:34:38.794 Yes! Double hammer. Double hammer. 00:34:38.819 --> 00:34:40.685 And... 00:34:40.710 --> 00:34:42.155 ...my head. 00:34:45.100 --> 00:34:46.994 They've nearly finished their garden... 00:34:49.740 --> 00:34:51.075 Yes! 00:34:51.100 --> 00:34:53.405 ...but haven't tested their machine. 00:34:53.430 --> 00:34:55.794 Just got to do that. Steve's got to do that. 00:34:55.819 --> 00:34:59.044 While the Aviators have tested their first two rooms, 00:34:59.069 --> 00:35:01.355 but with less than five hours to go, 00:35:01.380 --> 00:35:03.635 are only just starting their garden. 00:35:05.510 --> 00:35:07.155 There is a bit of pressure on now. 00:35:07.180 --> 00:35:09.515 I think that'll do the job, won't it? 00:35:09.540 --> 00:35:12.435 We've got two spectacular rooms. We just can't afford to spend 00:35:12.460 --> 00:35:15.765 the amount of time we would spend on the other rooms on this room. 00:35:15.790 --> 00:35:18.124 We'll get elastic band through there. 00:35:18.149 --> 00:35:20.685 One of those sharp blades. And then as the swing comes down, 00:35:20.710 --> 00:35:23.235 elastic band goes, a bowling ball or something nice and strong, 00:35:23.260 --> 00:35:24.685 and it's going to roll down there. 00:35:24.710 --> 00:35:27.924 It's going to hit the hammer and activate the cannons. Boom. 00:35:27.949 --> 00:35:32.355 If they finish it, a falling sledge should trigger Albert's explosives, 00:35:32.380 --> 00:35:35.155 blowing a picture frame that releases a mannequin head 00:35:35.180 --> 00:35:38.435 from a birdhouse, firing a plane that tips champagne 00:35:38.460 --> 00:35:41.595 that releases a banner and a skateboard 00:35:41.620 --> 00:35:44.685 which triggers a knife on a swing that cuts a rubber band, 00:35:44.710 --> 00:35:47.044 releasing a bowling ball down a slide, 00:35:47.069 --> 00:35:49.645 making the mallet hit the trigger for the confetti cannon. 00:35:51.710 --> 00:35:53.515 So it's quite simple, really. 00:35:53.540 --> 00:35:56.004 Up against the clock. That's what we definitely are. 00:35:56.029 --> 00:35:59.485 Teams, you have four hours left. 00:35:59.510 --> 00:36:01.075 Thank you. Carry on. 00:36:01.100 --> 00:36:05.485 They've left it late, but even with some mid—flight fuelling... 00:36:05.510 --> 00:36:07.205 Stops you rushing, tea. 00:36:07.230 --> 00:36:10.325 ...nobody builds quicker than the Aviators. 00:36:10.350 --> 00:36:12.645 Don't worry about me, guys. You know, I got it. 00:36:12.670 --> 00:36:14.044 I can juggle as well. 00:36:14.069 --> 00:36:15.595 You ready? 00:36:15.620 --> 00:36:17.155 Perfect. 00:36:18.949 --> 00:36:21.235 I love that. Yeah, that works. OK. 00:36:21.260 --> 00:36:25.004 Thank goodness. And at last, you're in the garden. 00:36:25.029 --> 00:36:26.965 We've been here for ages. Where have you been? 00:36:26.990 --> 00:36:28.565 You've got barely two hours left 00:36:28.590 --> 00:36:30.515 before the moment of ultimate judgment. 00:36:30.540 --> 00:36:32.874 You wouldn't want to be on our aircraft, would you, 00:36:32.899 --> 00:36:34.685 if we were panicking and saying, "What we'll do?" 00:36:34.710 --> 00:36:37.874 The Field house Brothers will need to keep their focus too... 00:36:37.899 --> 00:36:39.685 Test, test, test, test, test. 00:36:39.710 --> 00:36:42.004 BANG What was that?! 00:36:42.029 --> 00:36:43.155 Just blew up. 00:36:44.430 --> 00:36:46.765 Sounds like some of the gears are slipping. 00:36:46.790 --> 00:36:49.645 ...as they try and fix their issues against the clock. 00:36:49.670 --> 00:36:52.004 Fan's a bit dodgy because every time it goes down 00:36:52.029 --> 00:36:53.765 it, like, falls in a different place. 00:36:53.790 --> 00:36:55.645 So we've got things that don't work. 00:36:57.710 --> 00:37:02.044 Zach. Less than an hour to go, and both teams are putting on a show. 00:37:02.069 --> 00:37:03.235 Yeah, absolutely. 00:37:03.260 --> 00:37:06.155 The Aviators are that wild card because we know they can punch out 00:37:06.180 --> 00:37:08.794 a lot of transitions quickly. And they're on their final 00:37:08.819 --> 00:37:11.155 room, the garden. It's going to be a good machine. 00:37:11.180 --> 00:37:13.725 Meanwhile, over here, these guys are testing and testing. 00:37:13.750 --> 00:37:17.155 Yes, but I look at the final room compared to the other two. 00:37:17.180 --> 00:37:19.004 It doesn't scream like a party. 00:37:19.029 --> 00:37:22.205 What this is doing is going down to the wire. 00:37:22.230 --> 00:37:24.765 The Field house Brothers might not be able to fix their issues. 00:37:24.790 --> 00:37:27.124 The Aviators might not finish on time. 00:37:27.149 --> 00:37:29.645 Anything can happen. We shall see. We will see. 00:37:32.870 --> 00:37:35.235 Oh, no! Candle. Candle fell out. Oh, no! 00:37:35.260 --> 00:37:37.675 Oh, guitar might be on fire. 00:37:37.700 --> 00:37:40.235 Teams! Five minutes till we run your machines. 00:37:40.260 --> 00:37:42.495 It's the final! Five minutes! 00:37:42.520 --> 00:37:45.215 The Aviators are still adding steps. 00:37:45.240 --> 00:37:47.295 Got to throw everything in, innit? 00:37:47.320 --> 00:37:49.735 The Field houses are still finding issues. Oh! Snag. 00:37:49.760 --> 00:37:52.315 What's happened there? This could go either way. 00:37:52.340 --> 00:37:54.684 Champagne bottle can do the mousetrap. Mousetrap 00:37:54.709 --> 00:37:56.965 We can pull them off. We're almost done. 00:37:58.600 --> 00:38:00.455 One minute of build time left. 00:38:00.480 --> 00:38:01.884 One minute. 00:38:01.909 --> 00:38:04.215 Can you get up...? This? Oh! 00:38:06.520 --> 00:38:08.325 Ah... Does it always fall the other way? 00:38:12.990 --> 00:38:14.775 Find the problems. Solve the problems. 00:38:14.800 --> 00:38:17.855 Five, four, three, 00:38:17.880 --> 00:38:19.455 two, one! 00:38:19.480 --> 00:38:23.134 And that is it! Oh, God! Tools down! 00:38:23.159 --> 00:38:26.855 You've given it everything, and you can do no more. 00:38:26.880 --> 00:38:29.134 We are ready. 00:38:29.159 --> 00:38:31.014 So who will be champion? 00:38:31.039 --> 00:38:32.405 Place your bets now. 00:38:39.925 --> 00:38:42.621 After weeks of brilliant building... 00:38:42.646 --> 00:38:45.381 Chocks away! ..it all comes down to this. 00:38:46.876 --> 00:38:50.851 Both teams will run their party—throwing machines in full 00:38:50.876 --> 00:38:55.671 before Zach decides the champion based on the reliability, creativity 00:38:55.696 --> 00:38:57.421 and complexity of each machine. 00:38:57.446 --> 00:39:00.491 I think we've done a fantastic, amazing job. Absolutely. 00:39:00.516 --> 00:39:02.421 And we stand a great chance of winning. 00:39:02.446 --> 00:39:05.181 We still haven't achieved a full run. No. No. 00:39:05.206 --> 00:39:07.900 Things have always gone wrong. There's always been some 00:39:07.925 --> 00:39:10.981 little thing that's gone wrong. I'd put my money on the disabled guys. 00:39:11.006 --> 00:39:13.981 It's all going to come down to whose actually worked. 00:39:14.006 --> 00:39:16.780 First, The Aviators. 00:39:16.805 --> 00:39:19.061 Aviators, this is it. 00:39:19.086 --> 00:39:21.391 This is the moment of truth. 00:39:21.416 --> 00:39:24.931 Do you feel frazzled, nervous, excited? Quite nervous, aren't we? 00:39:24.956 --> 00:39:26.181 All of it. 00:39:26.206 --> 00:39:28.981 There's a lot of heart and soul gone into all of that. 00:39:29.006 --> 00:39:31.751 They assembled their garden machine in just four hours and want 00:39:31.776 --> 00:39:36.141 pyrotechnics and champagne to create a party vibe before a bowling ball 00:39:36.166 --> 00:39:39.391 rolls down the slide, knocking a mallet that should finish 00:39:39.416 --> 00:39:42.030 the machine by triggering a confetti cannon. 00:39:42.055 --> 00:39:44.981 To get this far, though, their bar and living room machines 00:39:45.006 --> 00:39:46.820 will need to work first. 00:39:46.845 --> 00:39:50.061 Zach, it just looks fabulous. Yeah. They definitely filled the brief. 00:39:50.086 --> 00:39:52.282 Every room is starting a party. 00:39:52.306 --> 00:39:55.751 It's impressive. Right, this, then, is very much it. 00:39:55.776 --> 00:39:57.461 Your final run. 00:39:57.486 --> 00:40:01.820 Gentlemen, start a party and run your machine in its entirety. 00:40:01.845 --> 00:40:04.141 Good luck. Albert, take it away. 00:40:04.166 --> 00:40:06.501 Go for it, mate. Good luck. 00:40:12.166 --> 00:40:14.471 Come on, ball. Come on. Do your stuff. 00:40:14.496 --> 00:40:16.261 Gravity still works. That's good. 00:40:21.566 --> 00:40:25.570 Ball to roll down, that's going to trigger the pyrotechnic blast. 00:40:25.595 --> 00:40:27.391 This is good. 00:40:27.416 --> 00:40:29.981 That causes the cup to drop. Trick shot worked. 00:40:30.006 --> 00:40:32.291 The cactus then has to start the mousetraps. 00:40:32.316 --> 00:40:33.156 It is. 00:40:34.776 --> 00:40:37.541 We are through into the next room. 00:40:37.566 --> 00:40:39.261 Oh, it ain't fired trigger! 00:40:42.246 --> 00:40:44.221 Fell too hard. Didn't hit the switch. 00:40:44.246 --> 00:40:46.700 Albert, you can intervene. 00:40:46.725 --> 00:40:49.861 That's the first of three interventions they're allowed. 00:40:49.886 --> 00:40:52.141 So the plane goes... 00:40:52.166 --> 00:40:54.580 That's now starting the disco ball. 00:40:57.925 --> 00:40:59.751 Spraying the silly string. 00:40:59.776 --> 00:41:02.471 The frog hasn't fallen, again. 00:41:03.000 --> 00:41:05.861 Frog didn't go. Albert, there's a frog problem. 00:41:05.886 --> 00:41:08.261 So the silly string didn't have enough strength to push 00:41:08.286 --> 00:41:10.900 the frog down. That started the fan. 00:41:10.925 --> 00:41:13.261 That was intervention number two. 00:41:20.526 --> 00:41:23.291 Boom! Well done! 00:41:26.036 --> 00:41:27.650 Well done, guys. Thank you. 00:41:29.216 --> 00:41:34.061 The party started perfectly in the bar, and the garden machine, 00:41:34.086 --> 00:41:36.830 made in just four hours, was flawless, too. 00:41:38.416 --> 00:41:40.981 Boom! Well done! 00:41:41.006 --> 00:41:43.301 But the hallway let them down. 00:41:43.326 --> 00:41:46.261 I think getting through it and getting three rooms done 00:41:46.286 --> 00:41:48.061 is an achievement, isn't it? 00:41:48.086 --> 00:41:51.371 I'm pretty sure the professionals don't do it as quickly as we do it. 00:41:51.396 --> 00:41:53.981 We are professionals. We are now. 00:41:54.006 --> 00:41:56.861 Boom! Well done! 00:41:56.886 --> 00:42:01.471 A perfect run from the Field houses would surely make them champions. 00:42:01.496 --> 00:42:04.471 And isn't it awkward when you think it's a fancy-dress party 00:42:04.496 --> 00:42:05.471 but it's not? 00:42:07.006 --> 00:42:08.471 This is a big moment. 00:42:08.496 --> 00:42:11.941 I'm not sure Damien is treating it with the gravitas it deserves. 00:42:11.966 --> 00:42:14.780 He's just ready for a party. Standard party kit. Right. 00:42:14.805 --> 00:42:17.221 Fair enough. We haven't tested the whole thing, 00:42:17.246 --> 00:42:20.371 so fingers crossed, it works. Yeah. 00:42:20.396 --> 00:42:24.780 They want the golf ball to knock the shovel, sending shears to snip 00:42:24.805 --> 00:42:29.221 the string holding up the cubicle, which should fall, revealing mini me 00:42:29.246 --> 00:42:32.910 and releasing the mallet to trigger the confetti cannon — 00:42:32.935 --> 00:42:35.141 IF the first two rooms work. 00:42:36.725 --> 00:42:39.751 I think this is a level three machine. Field houses taken it up 00:42:39.776 --> 00:42:42.178 to that notch, but it needs 00:42:42.202 --> 00:42:43.421 to... Work. Exactly. Yes. 00:42:43.446 --> 00:42:48.381 So, in your own time, for your shot at the title, start your machine. 00:42:48.406 --> 00:42:50.140 Go on, Damien. Start a party! 00:42:50.164 --> 00:42:51.021 Good luck. 00:42:59.685 --> 00:43:02.061 So that's another blood-pressure monitor. 00:43:02.086 --> 00:43:04.861 And that's going to squeeze the bottle, changing the pressure... 00:43:04.886 --> 00:43:06.551 And that's what causes it to sink. 00:43:06.576 --> 00:43:10.021 And that completes the circuit, starting that clock. 00:43:10.046 --> 00:43:12.991 That box is going to pull the pin out which allows that magnet 00:43:13.016 --> 00:43:15.660 to demonstrate... Nice — slow, fast, slow. 00:43:19.656 --> 00:43:21.191 Yes. 00:43:21.216 --> 00:43:22.700 Yes. Party started. 00:43:22.725 --> 00:43:24.421 Excellent. 00:43:24.446 --> 00:43:26.221 Bowling ball, fan cascade. 00:43:27.446 --> 00:43:28.780 Their combustion. 00:43:28.805 --> 00:43:32.101 That's got to burn through that string, and that released the 00:43:32.126 --> 00:43:35.101 Ames window to hit that little switch, starting the ceiling fan. 00:43:35.126 --> 00:43:37.381 I love that illusion, though! 00:43:37.406 --> 00:43:39.660 It does get you every time. Mm-hm. 00:43:39.685 --> 00:43:41.141 Yes. There it goes. 00:43:43.526 --> 00:43:46.551 Bunting time. Bunting comes out. And then that's 00:43:46.576 --> 00:43:48.551 going to open up the couch to eat the remote. 00:43:48.576 --> 00:43:51.660 Yeah. Come on, Adam's fixes. 00:43:53.086 --> 00:43:55.941 So it goes through. 00:43:55.966 --> 00:43:58.861 Sofa ate the remote! That's a level three idea! Yeah. 00:43:58.886 --> 00:44:00.551 And now the little car. 00:44:00.576 --> 00:44:03.580 So now the water goes into the polymer, that then hardens, 00:44:03.605 --> 00:44:06.780 is allowed to roll into the next room, which it is. 00:44:06.805 --> 00:44:09.660 Yes! Golf club...cuts 00:44:09.685 --> 00:44:12.021 the string, opens the outhouse. Yes! 00:44:13.605 --> 00:44:15.861 Oh, it's going to work. 00:44:15.886 --> 00:44:18.191 It's going to work! Yes! 00:44:18.216 --> 00:44:20.580 Yes! Yes! 00:44:20.605 --> 00:44:22.580 First time, every time! 00:44:24.406 --> 00:44:26.126 We're happy with that! Amazing. 00:44:26.150 --> 00:44:28.021 So relieved that worked. 00:44:29.326 --> 00:44:31.631 Wow! What a party! 00:44:31.656 --> 00:44:36.551 The Field house Brothers have outdone themselves when it mattered most, 00:44:36.576 --> 00:44:39.910 and may have made Zach's choice that bit easier. 00:44:45.016 --> 00:44:46.421 Teams... 00:44:46.446 --> 00:44:48.071 I'm going to miss saying that. 00:44:48.096 --> 00:44:51.631 Teams, what we do here is silly, 00:44:51.656 --> 00:44:53.910 but it's also creative, difficult 00:44:53.935 --> 00:44:55.460 and often deeply frustrating. 00:44:55.485 --> 00:44:57.221 It is engineering. 00:44:57.246 --> 00:44:59.861 Your machines were fun, complicated, 00:44:59.886 --> 00:45:02.741 you really took it to the next level, and I would happily welcome 00:45:02.766 --> 00:45:05.351 you to any of the professional competitions that I judge. 00:45:05.376 --> 00:45:07.071 High praise indeed. 00:45:07.096 --> 00:45:10.071 Obviously, there has to be a winner of the competition, 00:45:10.096 --> 00:45:12.351 and that winning team is... 00:45:18.016 --> 00:45:21.141 It's the Field house Brothers. Well done, lads. Congratulations. 00:45:21.166 --> 00:45:22.861 Well done, boys! 00:45:22.886 --> 00:45:25.431 Amazing job, both teams. Thanks. 00:45:25.456 --> 00:45:27.501 The good news is, there is a trophy. 00:45:27.526 --> 00:45:31.021 The bad news is, Zach made it and I'm terrified of it! 00:45:31.046 --> 00:45:32.460 Right... It is armed. 00:45:32.485 --> 00:45:35.381 If one member of the Field houses would like to collect this 00:45:35.406 --> 00:45:37.741 magnificent, if deadly, trophy. 00:45:37.766 --> 00:45:39.381 Give it a good pull. 00:45:39.406 --> 00:45:42.351 Well done! 00:45:45.016 --> 00:45:47.000 Yeah, we're pretty pleased. Yeah. 00:45:47.024 --> 00:45:48.381 Pretty happy. My mum will be happy. 00:45:48.406 --> 00:45:49.991 Yeah. They'll both be happy. 00:45:50.016 --> 00:45:52.071 She'll be happy that we come back in one piece. 00:45:52.096 --> 00:45:55.164 Don't think we've embarrassed ourselves. Oh, no, 00:45:55.188 --> 00:45:56.551 far from it. They've got youth on their side, and 00:45:56.576 --> 00:45:59.460 they've got an engineering background. We were beat by the right people. Yeah. 00:45:59.485 --> 00:46:01.821 Both machines were, like, epic, weren't they? 00:46:01.846 --> 00:46:03.631 If theirs hadn't had any interventions, it would 00:46:03.656 --> 00:46:04.991 have been really, really tight. 00:46:05.016 --> 00:46:06.301 I think we've done a good job. 00:46:06.326 --> 00:46:09.101 I think we've shown people what three disabled guys can really do. 00:46:09.126 --> 00:46:11.511 Well, I've learned we can't really change Adam. 00:46:11.536 --> 00:46:13.728 If Adam says ten minutes, it means 00:46:13.752 --> 00:46:14.741 ten hours. Yeah. All my things, 00:46:14.766 --> 00:46:17.271 they look too tricky for your little brains. 00:46:17.296 --> 00:46:19.181 All I've got to say is, who's holding the trophy? 00:46:19.206 --> 00:46:20.901 Who's got the number one? 00:46:20.926 --> 00:46:22.631 I am! 00:46:22.656 --> 00:46:24.511 We're going to have to fix that now! 00:46:24.536 --> 00:46:28.021 And hopefully, you know, we've actually inspired some people 00:46:28.046 --> 00:46:30.301 to try and do their own. 00:46:30.326 --> 00:46:32.580 Start chopping up your sofa... Yeah. 00:46:32.605 --> 00:46:34.071 ...and maybe set it on fire. Yeah.