0:00:02 > 0:00:04More than 8,000 children
0:00:04 > 0:00:07have applied for just eight places,
0:00:07 > 0:00:10on one adventure of a lifetime.
0:00:10 > 0:00:14An extreme expedition in South America.
0:00:14 > 0:00:16Turn to starboard!
0:00:16 > 0:00:18They'll attempt to follow in the footsteps
0:00:18 > 0:00:21of the great Elizabethan explorer Sir Walter Raleigh,
0:00:21 > 0:00:23who travelled where no Englishman had been before,
0:00:23 > 0:00:27in search of El Dorado, the Lost City of Gold.
0:00:29 > 0:00:32400 years later, the team will have to grapple
0:00:32 > 0:00:34with the same tough terrain...
0:00:34 > 0:00:38and come face to face with the same alien wildlife
0:00:38 > 0:00:41as Raleigh encountered on his journey into the unknown.
0:00:41 > 0:00:42We've reached the top.
0:00:42 > 0:00:45Led by survival expert Ben Major
0:00:45 > 0:00:48and record-breaking adventurer Polly Murray
0:00:48 > 0:00:51this epic expedition will push the eight young explorers to the limit
0:00:51 > 0:00:52and beyond.
0:00:52 > 0:00:54Oh, my God!
0:00:54 > 0:00:57Who's got what it takes for the adventure of a lifetime?
0:00:59 > 0:01:02- It'll be unbelievable. - I really want this.
0:01:02 > 0:01:04It would mean the world to me.
0:01:04 > 0:01:06You're our Serious Explorers.
0:01:09 > 0:01:11Coming up...
0:01:11 > 0:01:13the toughest-ever Serious boot camp...
0:01:13 > 0:01:16I really can't do this.
0:01:16 > 0:01:19..as the would-be explorers face their worst fears...
0:01:19 > 0:01:21Oh, my God!
0:01:21 > 0:01:25..and battle with the coldest conditions for 100 years.
0:01:25 > 0:01:29I ruined my chances but I couldn't breathe.
0:01:31 > 0:01:33It's November, and all round the country
0:01:33 > 0:01:36100 young would-be explorers are waiting anxiously.
0:01:38 > 0:01:42They've already battled through three intensive auditions.
0:01:42 > 0:01:44Now just a phone call stands between them
0:01:44 > 0:01:48and one of 16 places in the final round.
0:01:48 > 0:01:49Serious bootcamp.
0:01:51 > 0:01:52Come on then.
0:01:52 > 0:01:54Regan is especially nervous.
0:01:54 > 0:01:57He's been obsessed with the rainforest all his life,
0:01:57 > 0:02:00and keeps a variety of reptiles as pets.
0:02:00 > 0:02:03His bedroom is even decorated as a jungle.
0:02:03 > 0:02:06The pressure, the pressure.
0:02:06 > 0:02:08Expedition leader Ben makes the call.
0:02:08 > 0:02:11- PHONE RINGS - Hello?
0:02:11 > 0:02:14Hello?
0:02:11 > 0:02:14Hello?
0:02:12 > 0:02:14It's bad news actually.
0:02:14 > 0:02:15Bad news.
0:02:15 > 0:02:18You will be getting very cold next weekend in Dartmoor.
0:02:18 > 0:02:20Yes! I did it!
0:02:20 > 0:02:22I got through.
0:02:23 > 0:02:26Oh, my gosh! Oh, my gosh!
0:02:26 > 0:02:28PHONE RINGS Hello?
0:02:28 > 0:02:29Hi, is that Regan?
0:02:29 > 0:02:30Hi, Ben.
0:02:30 > 0:02:31How are you doing?
0:02:31 > 0:02:35- Very nervous.- Congratulations, you're through to the last 16.
0:02:35 > 0:02:38Oh, my God, thank you. Yes.
0:02:39 > 0:02:42One more question... Am I dreaming?
0:02:42 > 0:02:44No.
0:02:45 > 0:02:47SHE SCREAMS
0:02:47 > 0:02:50In the coldest December for 100 years,
0:02:50 > 0:02:52the final 16 head to Serious bootcamp,
0:02:52 > 0:02:55in the south-west corner of England.
0:02:55 > 0:02:59It'll be the toughest 48 hours of their lives as they try to prove
0:02:59 > 0:03:03they've the courage and will-power to cope with the Raleigh expedition.
0:03:03 > 0:03:05It's going to be cold, it's going to be wet.
0:03:05 > 0:03:09We're going to push you and it's how much you, as individuals, want it.
0:03:09 > 0:03:14Each knows only half of them will get on the money-can't-buy trip.
0:03:14 > 0:03:19It would mean the world to get in. Literally, the world.
0:03:19 > 0:03:22I'd do anything to get through, I would.
0:03:22 > 0:03:27I'm just going to keep on going and pushing forward through it all.
0:03:27 > 0:03:30You're never going to get to do anything like this again.
0:03:30 > 0:03:34The extreme weekend begins with a rude awakening.
0:03:34 > 0:03:39Morning, girls. 6 o'clock, everyone up and out in two minutes.
0:03:39 > 0:03:43Morning boys. Wakey, wakey, rise and shine.
0:03:46 > 0:03:49The freezing pre-dawn workout is just a taster
0:03:49 > 0:03:51of what's to come during bootcamp...
0:03:51 > 0:03:53Head towards the sea.
0:03:53 > 0:03:56..as the judges find out who's got what it takes to survive
0:03:56 > 0:03:58the gruelling five-week expedition.
0:03:58 > 0:04:00Three, two and under.
0:04:03 > 0:04:04I can't feel anything.
0:04:04 > 0:04:05I'm freezing,
0:04:05 > 0:04:09but it's a good challenge to go in the water when it's minus two.
0:04:09 > 0:04:13We really want to see serious attitude, determination, guts,
0:04:13 > 0:04:17and hopefully the tasks we've set over the next 48 hours
0:04:17 > 0:04:20will test them to the limit.
0:04:20 > 0:04:23The expedition to Guyana in South America
0:04:23 > 0:04:27will take the young explorers where no children have been before.
0:04:27 > 0:04:32Including an amazing abseil down the 200-metre Kaieteur Falls,
0:04:32 > 0:04:37one of the most powerful single-drop waterfalls in the world.
0:04:37 > 0:04:40So, back at bootcamp, the first serious challenge
0:04:40 > 0:04:43will test the 16 finalists' head for heights.
0:04:43 > 0:04:46Oh, my God! Arghh!
0:04:48 > 0:04:53It's a terrifying 30-metre abseil over a sea-cliff.
0:04:53 > 0:04:55Oh, my gosh!
0:04:55 > 0:04:59Although it's safe, Chanelle finds it hard to go over the edge.
0:04:59 > 0:05:05- Left hand away from the caribiners. - My heart's racing.
0:05:05 > 0:05:06Start walking down.
0:05:06 > 0:05:09Oh, no, I'm going to fall. Argh.
0:05:09 > 0:05:12- All right? Don't worry. - I'm really bad at this.
0:05:12 > 0:05:17- You're doing brilliantly. - I'm really scared.
0:05:17 > 0:05:20She's paralysed with fear.
0:05:20 > 0:05:25Ben tries a technique to get her to trust the rope.
0:05:25 > 0:05:30Take your left hand off the line. Stick it out at right angles.
0:05:30 > 0:05:36Take your right hand off the rope. Out to the side, like a crucifix.
0:05:36 > 0:05:37Now look back.
0:05:37 > 0:05:43Can you see the sea over your head? Lean back, have complete faith.
0:05:43 > 0:05:48- Oh, my gosh! Oh, my gosh. - Good girl, that's fantastic. OK. OK?
0:05:48 > 0:05:53In your own time, control yourself and start walking down.
0:05:53 > 0:05:57- I'm doing it.- Once you're over, you get a feel for it.
0:05:57 > 0:06:01Oh, my goodness! It's so pretty down there.
0:06:02 > 0:06:05I feel really proud of myself for doing it.
0:06:05 > 0:06:10Just, wow. It's the only word that can describe it. Wow.
0:06:10 > 0:06:15The others force themselves over, to impress the judges.
0:06:15 > 0:06:20Lean back. Brilliant. You're going nowhere, don't worry.
0:06:20 > 0:06:21SHE SCREAMS
0:06:21 > 0:06:26- All right?- I'm stuck. - You're not. Look around and smile.
0:06:26 > 0:06:29I'm too scared to walk around.
0:06:31 > 0:06:35Oh... Did everyone else make this much fuss?
0:06:35 > 0:06:36Whoa!
0:06:36 > 0:06:38I'm, like, twisting!
0:06:38 > 0:06:41Michael has to overcome a fear of heights.
0:06:41 > 0:06:44I feel like I'm in the Army.
0:06:44 > 0:06:46Usually I'd get nervous, start panicking.
0:06:46 > 0:06:52I stayed cool, positive attitude. Really chuffed with myself.
0:06:52 > 0:06:54Last is reptile lover Regan,
0:06:54 > 0:06:59trying to fulfil his ambition to get to the rainforest.
0:06:59 > 0:07:01- I'm scared.- No, you're not.
0:07:01 > 0:07:05He's the most nervous of all the finalists.
0:07:05 > 0:07:10Heights are my biggest fear. I've always been scared of them.
0:07:10 > 0:07:13Now you've chucked me in at the deep end.
0:07:13 > 0:07:16All I want you to do is lean back a little bit
0:07:16 > 0:07:19so you feel tension in the lines.
0:07:19 > 0:07:22- I can't do this.- You can.- I can't.
0:07:22 > 0:07:25We're going to go for a walk.
0:07:25 > 0:07:27Really lean into it.
0:07:27 > 0:07:29I really want to do this.
0:07:29 > 0:07:32Good stuff, Regan, fantastic.
0:07:32 > 0:07:35Regan's determined to keep his dream alive.
0:07:35 > 0:07:40Keep coming. I know you're scared. But I know you can do it.
0:07:40 > 0:07:42I know YOU know you can do it.
0:07:42 > 0:07:46It's all in the head at this point. Yep?
0:07:49 > 0:07:52Good man. Fantastic.
0:07:53 > 0:07:55Oh...
0:07:55 > 0:07:57It's all right, OK.
0:07:57 > 0:07:59You've got to lean out.
0:07:59 > 0:08:04- Will you talk me down? - That is brilliant. Keep leaning out.
0:08:04 > 0:08:07HE WHIMPERS
0:08:10 > 0:08:12I really can't do this.
0:08:12 > 0:08:16Mate, you're doing it, yeah?
0:08:16 > 0:08:18Regan, you've got it sussed.
0:08:18 > 0:08:22It's a phenomenal achievement.
0:08:22 > 0:08:26Amazing, I was so scared. I'm still shaking.
0:08:26 > 0:08:29I never thought I'd do anything like that.
0:08:29 > 0:08:33Oh, my God, I did it. I actually did it.
0:08:33 > 0:08:38Standout of the morning was Regan, who was petrified.
0:08:38 > 0:08:43What was amazing was he stuck at it to conquer one of his biggest fears.
0:08:43 > 0:08:48Guyana will be full of astonishing animal experiences.
0:08:48 > 0:08:53The rainforests of South America are teeming with creatures,
0:08:53 > 0:08:57large and small, beautiful and deadly.
0:08:58 > 0:09:00Back at Serious boot camp,
0:09:00 > 0:09:07the 16 finalists face an exotic animal room, to see how they cope.
0:09:07 > 0:09:12Animal expert Nick Baker lies in wait for each applicant.
0:09:12 > 0:09:15Jake B has no idea what's to come.
0:09:15 > 0:09:19- Are you worried?- Erm, I can smell,
0:09:19 > 0:09:22like, horses and stuff.
0:09:22 > 0:09:25You're fine on that front, no horses here.
0:09:25 > 0:09:28Would you like to remove your blindfold?
0:09:28 > 0:09:33Oh, my God! Oh, my God, I'm terrified of snakes.
0:09:33 > 0:09:37- Are you?- Yeah.- Why's that? - I don't know, but I am.
0:09:37 > 0:09:41I've got total control. I won't let anything happen.
0:09:41 > 0:09:45- I have to hold her? - Would you like to?- No.
0:09:45 > 0:09:48- Give her a stroke.- No. Look at that.
0:09:48 > 0:09:51- Do you see the muscle? It's really strong.- It is.
0:09:51 > 0:09:55The boa constrictor suffocates its prey by squeezing.
0:09:55 > 0:09:57I don't like its head.
0:09:57 > 0:10:01You hold all of it, I'll keep the head.
0:10:01 > 0:10:05He bravely tries to overcome his fear.
0:10:05 > 0:10:09- Urgh.- Support his weight. I've got the head.
0:10:09 > 0:10:13- It's heavy.- It's solid muscle. - Oh, no!
0:10:13 > 0:10:18- I don't think you're scared of snakes.- I am.- You're not phobic.
0:10:18 > 0:10:22- But I am terrified. - I've noticed in the last few minutes,
0:10:22 > 0:10:27getting to know it, you've changed. You did brilliant.
0:10:27 > 0:10:31- That's one of my worst fears. - That's why I've got a snake out!
0:10:31 > 0:10:34'I held the snake, and I couldn't believe it.'
0:10:34 > 0:10:38But I feel more than brilliant.
0:10:38 > 0:10:40It's that good.
0:10:40 > 0:10:44Oh my. Jeez, that's hairy.
0:10:44 > 0:10:49Others, like Michael, are also nervous with the creatures.
0:10:49 > 0:10:54- Get over your fear.- It's quite nice. I thought I'd never say that.
0:10:54 > 0:10:56Remove your blindfold.
0:10:56 > 0:10:59- How will Chanelle fare?- Oh!
0:10:59 > 0:11:01Do you like these things?
0:11:01 > 0:11:06- I love it. I've got a pet snake. - What is this?- A toad.
0:11:06 > 0:11:08It is. How do you know?
0:11:08 > 0:11:12- It's warty rather than smooth. - She's good.
0:11:12 > 0:11:16Regan, welcome to my jungle. My smelly jungle.
0:11:16 > 0:11:19And Regan is also in his element.
0:11:19 > 0:11:23Oh, yay! I love all these!
0:11:23 > 0:11:27But Sammy has always had a major spider phobia.
0:11:27 > 0:11:31All right, Sammy, if you'd like to remove your blindfold.
0:11:31 > 0:11:36Oh! Oh, my God!
0:11:36 > 0:11:40Scary. Oh, my God, nothing should have eight legs.
0:11:40 > 0:11:43That's a big spider.
0:11:43 > 0:11:45Did you want to hold it?
0:11:45 > 0:11:47- Can I keep my gloves on?- No.
0:11:47 > 0:11:53This is very delicate, this spider. I'm worried about the spider.
0:11:53 > 0:11:58Sammy doesn't want her phobia to spoil her chance of going to Guyana.
0:11:58 > 0:12:02Hold your hands back. I know you can do it.
0:12:02 > 0:12:05- You are shaking like a leaf. - Oh, my gosh!
0:12:05 > 0:12:08OK, that's one foot.
0:12:08 > 0:12:10Can I please look away?
0:12:10 > 0:12:14I won't let you take your hand away, but you are safe.
0:12:14 > 0:12:17You're doing really well.
0:12:17 > 0:12:20She also conquers a long-term fear.
0:12:20 > 0:12:24I'm lifting him up now, OK? You're clear.
0:12:24 > 0:12:28It wasn't so bad, it was just the thought of the spider.
0:12:28 > 0:12:30I thought you were brilliant.
0:12:32 > 0:12:33Come on!
0:12:33 > 0:12:38The finalists are rising to every challenge.
0:12:38 > 0:12:40Even a terrifying high-wire walk.
0:12:40 > 0:12:42BEN LAUGHS
0:12:42 > 0:12:44Well rescued.
0:12:44 > 0:12:47Absolutely brilliant, well done.
0:12:47 > 0:12:52It's making life tricky, because they're all too good.
0:12:52 > 0:12:55We've still got 16 strong contenders.
0:12:55 > 0:12:57Excellent.
0:12:57 > 0:12:59Having seen others succeed,
0:12:59 > 0:13:04Nikita is determined to complete the high-wire challenge.
0:13:04 > 0:13:08This is like the hardest one.
0:13:08 > 0:13:13Fantastic, Nikita, you're doing brilliantly.
0:13:14 > 0:13:15SHE SIGHS
0:13:15 > 0:13:20But, with the wind whipping up, she's got her work cut out.
0:13:20 > 0:13:24I'm going to fall, I don't want to fall.
0:13:24 > 0:13:29- Slide your left foot along. - I can't, I'm going to fall.
0:13:29 > 0:13:31The wind's horrible, oh.
0:13:31 > 0:13:35Don't worry, Nikita, you're OK.
0:13:35 > 0:13:38Nikita feels she's ruined her chances.
0:13:38 > 0:13:39Don't worry.
0:13:39 > 0:13:42I'm not even afraid of heights.
0:13:42 > 0:13:46Can I explain something? It was a brilliant effort.
0:13:46 > 0:13:51You gave it your best shot and you couldn't quite reach that next one.
0:13:51 > 0:13:57Ben's impressed with her spirit. But can it keep her in the running?
0:13:59 > 0:14:04Among the challenges, the eight explorers have a 20-mile trek
0:14:04 > 0:14:07to the top of a tabletop mountain.
0:14:07 > 0:14:14At 10,000 feet, Mount Roraima is one of the wonders of the world.
0:14:16 > 0:14:22Back in Britain, the finalists face a climax to the boot camp,
0:14:22 > 0:14:26trekking across Dartmoor National Park.
0:14:26 > 0:14:32It also includes an early-morning swim across a frozen lake.
0:14:32 > 0:14:37Tonight changes from fixed activities to an expedition in itself.
0:14:37 > 0:14:43That's when you see what people are like when they're tired, cold, wet.
0:14:43 > 0:14:47So everything can change overnight tonight.
0:14:47 > 0:14:51- We are splitting you into teams, girls and boys.- Sweet.
0:14:51 > 0:14:54And we are racing to our campsite.
0:14:54 > 0:14:58- Guess what's waiting for us. - Food?- Exactly.
0:14:58 > 0:14:59THEY CHEER
0:14:59 > 0:15:03Jake, you're at the front, shine your light.
0:15:03 > 0:15:06Weighed down by poles, it's a test of teamwork
0:15:06 > 0:15:08as they trek three miles.
0:15:08 > 0:15:12Work together to make this go quicker.
0:15:12 > 0:15:13We can do this.
0:15:13 > 0:15:18They've been going 14 hours, but they put in a huge effort
0:15:18 > 0:15:20to catch the judge's eye.
0:15:20 > 0:15:24Let's be motivated by the food waiting for us.
0:15:24 > 0:15:26Look where you're going.
0:15:26 > 0:15:29The boys arrive just ahead of the girls.
0:15:29 > 0:15:31We did it, guys! Yeah!
0:15:35 > 0:15:38THEY SQUEAL
0:15:41 > 0:15:43You're running a little bit late.
0:15:43 > 0:15:45Vegetable stew.
0:15:45 > 0:15:48It's 9pm when they have supper.
0:15:48 > 0:15:51Most think they've finished auditions.
0:15:51 > 0:15:56Today's been the hardest, the most amazing thing ever.
0:15:56 > 0:15:59I really hope I've got through.
0:15:59 > 0:16:03They think it's over. We haven't started yet.
0:16:05 > 0:16:084am. Minus three degrees.
0:16:08 > 0:16:12Good morning. Have we got a lot of dead bodies?
0:16:12 > 0:16:16And another unexpected early wake-up call.
0:16:16 > 0:16:20- Who's freezing?- Me.- Me. - I thought you might be.
0:16:20 > 0:16:24The teams have to navigate three miles
0:16:24 > 0:16:27to Sharpitor, one of the highest points.
0:16:27 > 0:16:32We're going to head west. I want you to take me to Sharpitor.
0:16:32 > 0:16:38I'm dreading it. It's walking for... three hours it's going to take.
0:16:38 > 0:16:42- Guys!- Oi, guys!- Guys! You missed your turn.
0:16:42 > 0:16:45- Do any of you know where we are?- No.
0:16:45 > 0:16:49On their way is an eerie lake, Crazywell Pool,
0:16:49 > 0:16:53full of ice in the sub-zero temperatures.
0:16:53 > 0:16:55As the finalists arrive there,
0:16:55 > 0:17:01Ben and Polly break the news of the nightmare in store.
0:17:01 > 0:17:05This is your ultimate challenge, all right?
0:17:05 > 0:17:07This is nasty.
0:17:07 > 0:17:11One at a time, you will be going across this lake.
0:17:11 > 0:17:13It looks so cold.
0:17:14 > 0:17:21It's so extreme, if attempted, experts must be on hand for safety.
0:17:21 > 0:17:24I don't like the look of the ice, it looks scary.
0:17:24 > 0:17:30But I'll just have to do it, won't I? Phew!
0:17:30 > 0:17:35Absolutely terrifying. But you've got to do what you've got to do.
0:17:35 > 0:17:39One of the boys, Jake W, decides he's not up for it.
0:17:39 > 0:17:44I want to do this, but I'm too cold to jump in freezing water.
0:17:44 > 0:17:47I really just can't.
0:17:47 > 0:17:49The boys go first.
0:17:49 > 0:17:54Even in wetsuits for protection, it's still unbelievably cold.
0:17:54 > 0:17:58- Back of the neck.- OK. Forward. Happy?- Yeah.- Good.
0:17:58 > 0:18:02In you go, mate. Straight in. Quick is best.
0:18:02 > 0:18:05Sam is first to brave the icy water.
0:18:06 > 0:18:08- Well done, Sam!- Good effort, Sam.
0:18:13 > 0:18:16The 30-metre swim leaves them completely numb towards the end.
0:18:17 > 0:18:20Absolutely brilliant.
0:18:20 > 0:18:22OK, give me your hand.
0:18:22 > 0:18:24Give me your hand. You've done it, mate.
0:18:26 > 0:18:29Good effort. Good effort, Michael. Brilliant.
0:18:31 > 0:18:36- Straight in. Good stuff. - Good boy. Good boy.
0:18:36 > 0:18:39- Well done, Nick. That's it. How was it?- Tough.
0:18:39 > 0:18:43- I can't feel my legs.- No, I know, that was tough, wasn't it?
0:18:43 > 0:18:46All the first boys astonish the leaders.
0:18:46 > 0:18:47Well done, Jake.
0:18:47 > 0:18:50More confidence than a polar bear there.
0:18:50 > 0:18:53I thought the first two or three would have gone in,
0:18:53 > 0:18:55come out and bottled it completely.
0:18:55 > 0:18:58But straight in, straight across.
0:18:58 > 0:19:00That sets the bar that high for everyone, because that is amazing.
0:19:00 > 0:19:03You superstar.
0:19:03 > 0:19:04Wow. How do you feel?
0:19:04 > 0:19:06- Great!- Elated.
0:19:06 > 0:19:08You've done it.
0:19:08 > 0:19:11But Conor is finding it hard to rise to the challenge.
0:19:11 > 0:19:15Water over the back of the neck, water over the back of the neck.
0:19:15 > 0:19:18Can I just skip this, please? I'm really finding this difficult.
0:19:18 > 0:19:20You've done the hard part, which was getting in the water.
0:19:20 > 0:19:24- You're in now. - I didn't want to do that though.
0:19:24 > 0:19:26It's up to you, Conor. Had enough?
0:19:26 > 0:19:28- Not going to go?- No.
0:19:28 > 0:19:30- Definitely not? Last chance.- No.
0:19:30 > 0:19:32- I can't.- No worries.- I really can't.
0:19:32 > 0:19:36Watching the boys, Sammy is getting more and more nervous
0:19:36 > 0:19:39and she drops a bombshell.
0:19:39 > 0:19:41- I can't swim at all.- You can't swim?
0:19:41 > 0:19:45- Well, I could, but I can't any more, no.- Why? Because it's too cold?
0:19:45 > 0:19:48No, it's a long story. I used to be able to, but then I got a fright
0:19:48 > 0:19:52because something happened and now I just can't do it.
0:19:52 > 0:19:54By an awful coincidence,
0:19:54 > 0:19:59Sammy had a very scary experience on a frozen pond near her home.
0:19:59 > 0:20:01Skating with friends, one of them
0:20:01 > 0:20:03went through the ice and nearly drowned.
0:20:03 > 0:20:06We were all skating across and one friend fell in
0:20:06 > 0:20:07and that was very scary,
0:20:07 > 0:20:13so ever since then I've not liked swimming or being in water.
0:20:13 > 0:20:15It's a real blow to her chances,
0:20:15 > 0:20:19as everyone on the expedition needs to be able to swim.
0:20:19 > 0:20:21Don't worry.
0:20:21 > 0:20:22Put your hands here.
0:20:22 > 0:20:24Tuck them under your armpits.
0:20:24 > 0:20:28After his dip, Jake B has very cold fingers and toes.
0:20:28 > 0:20:30- How you doing, buddy? - Not good.
0:20:30 > 0:20:32- What's wrong? - My hands are really hurting me.
0:20:32 > 0:20:36He's checked out by expedition doctor Henry.
0:20:38 > 0:20:41It's like very bad pins and needles.
0:20:41 > 0:20:43As he got out and was heating up,
0:20:43 > 0:20:45the blood was going back to his fingers and toes,
0:20:45 > 0:20:47causing the pain and numbness.
0:20:48 > 0:20:50LAUGHTER
0:20:50 > 0:20:53Ah, we have a smile. Excellent.
0:20:53 > 0:20:56Now I've warmed up, I'm fine. I'm just going to carry on.
0:20:56 > 0:20:59Let's get this walk finished.
0:20:59 > 0:21:02Oh, God. Oh, God!
0:21:02 > 0:21:05It's finally the turn of the girls,
0:21:05 > 0:21:09but sitting still for an hour has chilled them to the bone.
0:21:09 > 0:21:11So you're freezing now, basically?
0:21:11 > 0:21:14Nikita is simply too cold to be able to swim safely.
0:21:14 > 0:21:17Your fingers are blue and you're not even in the ice,
0:21:17 > 0:21:19so I'm not that happy to put you in it.
0:21:19 > 0:21:21No, but I want to do it.
0:21:21 > 0:21:25It's the second time Nikita's missed a task
0:21:25 > 0:21:29and she sees her expedition dream slipping away.
0:21:29 > 0:21:33- But I want to do it. Everyone else has done it.- I know you do.
0:21:33 > 0:21:34I really do want...
0:21:36 > 0:21:37OK, go, go, go!
0:21:37 > 0:21:42Like most of the boys, the remaining girls show
0:21:42 > 0:21:45incredible courage as they try to book their ticket to Guyana.
0:21:45 > 0:21:48- SHE SCREAMS - Oh, get out my way!
0:21:50 > 0:21:51Fantastic!
0:21:51 > 0:21:55One by one, Sammy sees each of them make it across.
0:21:56 > 0:21:59My hands are burning.
0:21:59 > 0:22:00Cruising.
0:22:00 > 0:22:02Get out of water. Don't linger.
0:22:02 > 0:22:03That was horrible.
0:22:03 > 0:22:06And she takes a massive decision.
0:22:06 > 0:22:09Despite her fear of water, she's going to go for it.
0:22:09 > 0:22:11Aaah!
0:22:11 > 0:22:15I'm really scared, because I've got a fear of swimming,
0:22:15 > 0:22:18but I'm pretty sure I can do it, so I'll give it my best shot.
0:22:20 > 0:22:21OK, Sammy. Let's go.
0:22:22 > 0:22:24But will she be able to overcome her phobia?
0:22:26 > 0:22:28Go in a little bit deeper.
0:22:28 > 0:22:30Good girl.
0:22:30 > 0:22:33OK, that's the hardest part, I promise.
0:22:33 > 0:22:37Go for it! One, two, three! Go!
0:22:37 > 0:22:40Well done, Sammy. Brilliant.
0:22:40 > 0:22:43Keep going, that's great.
0:22:43 > 0:22:46Keep going. Good girl. Fantastic, Sammy!
0:22:46 > 0:22:49Halfway over, the freezing water starts to affect her breathing.
0:22:49 > 0:22:54She finds herself gasping for air and has to be rescued.
0:22:58 > 0:23:01Well done, Sammy.
0:23:02 > 0:23:05I've ruined my chances, but I couldn't breathe.
0:23:08 > 0:23:11Sammy?
0:23:11 > 0:23:15Can I just say, absolutely 100% effort.
0:23:15 > 0:23:19Fantastic. You have ruined no chances whatsoever.
0:23:19 > 0:23:21I panicked.
0:23:21 > 0:23:23Yeah, but so what?
0:23:23 > 0:23:24It's freezing cold water.
0:23:24 > 0:23:28Yeah, but I'm really disappointed in myself.
0:23:28 > 0:23:29No, you mustn't be.
0:23:30 > 0:23:33As the sun rises, the 16 finalists summon up
0:23:33 > 0:23:37their last reserves of energy for the final hike up Sharpitor.
0:23:37 > 0:23:41And every one of them makes it to the top.
0:23:41 > 0:23:45A big, big round of applause for all of you. Well done.
0:23:45 > 0:23:48Which makes the morning's big decision incredibly tough
0:23:48 > 0:23:52for judges Ben, Polly and series producer Marshall.
0:23:52 > 0:23:53This is probably, to me,
0:23:53 > 0:23:57the strongest 16 finalists we've ever had.
0:23:57 > 0:24:00I'd hate to get this far and fall at the last hurdle.
0:24:00 > 0:24:02I like him a lot.
0:24:02 > 0:24:04I like him, but...
0:24:04 > 0:24:07'To go on now would be amazing.'
0:24:07 > 0:24:11Whoa, explosions, fireworks in the air.
0:24:11 > 0:24:14To me, it's going to be an either/or for these two guys.
0:24:14 > 0:24:15Oh.
0:24:15 > 0:24:18- What about girls?- Yes...
0:24:18 > 0:24:22I've got butterflies in me tummy. I really want to get it now.
0:24:22 > 0:24:26It's a choice between... Yeah, this one and this one.
0:24:26 > 0:24:28This one.
0:24:28 > 0:24:30For that last slot.
0:24:30 > 0:24:32To me, it means...
0:24:32 > 0:24:38I guess, no words can explain how much it means to me.
0:24:38 > 0:24:39Decision?
0:24:39 > 0:24:40Final decision, yes.
0:24:40 > 0:24:41Yes.
0:24:41 > 0:24:43Oh.
0:24:43 > 0:24:46The finalists are brought together for the last time.
0:24:46 > 0:24:50Isabella - Y.
0:24:50 > 0:24:54- They're split into two groups of eight.- Nikita - X.
0:24:54 > 0:24:56They head into two separate rooms.
0:24:56 > 0:24:59Sky - Y.
0:25:03 > 0:25:04Hey!
0:25:04 > 0:25:07Let's have a group hug.
0:25:07 > 0:25:09Oh, my God. One more person to come.
0:25:09 > 0:25:11And, last but not least,
0:25:11 > 0:25:12Jake - BX.
0:25:12 > 0:25:15Good luck, everyone.
0:25:23 > 0:25:28It's been...a most incredible weekend, all right?
0:25:28 > 0:25:31You've suffered trials and tribulations.
0:25:33 > 0:25:37But I'm really sorry, you're not going to be joining us
0:25:37 > 0:25:39on this expedition.
0:25:39 > 0:25:41Really, really sorry.
0:25:41 > 0:25:44- I'm so sorry. - I'm so, so sorry.
0:25:44 > 0:25:46I'm so sorry.
0:25:48 > 0:25:52Guys, it's been a really long, tough weekend,
0:25:52 > 0:25:55and you've all done exceptionally well.
0:25:55 > 0:25:57Bad news.
0:25:58 > 0:26:02The expedition is going to be far, far tougher,
0:26:02 > 0:26:05and you're our Serious Explorers!
0:26:05 > 0:26:06CHEERING AND SCREAMING
0:26:18 > 0:26:24Regan showed great determination to achieve his rainforest dream.
0:26:24 > 0:26:27I'm going to go! Yes!
0:26:27 > 0:26:32Sammy's courage in overcoming her phobias was exceptional.
0:26:32 > 0:26:34I thought I wasn't normal.
0:26:34 > 0:26:36Oh, my God!
0:26:37 > 0:26:40While Nikita didn't always succeed,
0:26:40 > 0:26:43her guts and character did impress the judges.
0:26:43 > 0:26:46Oh, my God. That's the best feeling I've ever felt!
0:26:46 > 0:26:49Michael, the oldest at fourteen,
0:26:49 > 0:26:52demonstrated great leadership skills.
0:26:52 > 0:26:56I've swum through an ice-covered river for a reason now!
0:26:56 > 0:26:58Oh, I'm so happy!
0:26:58 > 0:27:04Megan's positive spirit shone through in the worst conditions.
0:27:04 > 0:27:07I'm really, really, really happy now! I love everyone!
0:27:07 > 0:27:11Josh hardly put a foot wrong as he rose to every challenge.
0:27:11 > 0:27:13It's a dream come true.
0:27:13 > 0:27:15Whoa!
0:27:15 > 0:27:18Despite being the youngest at just 12,
0:27:18 > 0:27:21Jake B displayed outstanding bravery.
0:27:21 > 0:27:25Oh, my God. I'm over the moon, man. This means the world to me.
0:27:25 > 0:27:29Chanelle's determination to succeed was an inspiration to everyone.
0:27:29 > 0:27:34I'm so happy. Like, tears of joy and everything.
0:27:34 > 0:27:36I'm shaking!
0:27:36 > 0:27:39I'm just...really happy!
0:27:43 > 0:27:45Next time on Serious Explorers...
0:27:45 > 0:27:47Wow!
0:27:47 > 0:27:49..Nikita reaches dizzy new heights.
0:27:49 > 0:27:52I'm at the top!
0:27:52 > 0:27:54CHEERING AND CLAPPING
0:27:54 > 0:27:57But life on the ocean quickly hits a low.
0:27:57 > 0:27:59Oh, I feel so sick.
0:27:59 > 0:28:01Subtitles by Red Bee Media Ltd
0:28:01 > 0:28:03E-mail subtitling@bbc.co.uk