0:00:02 > 0:00:04Seven young explorers are taking on
0:00:04 > 0:00:06the toughest challenge of their lives -
0:00:06 > 0:00:09an extreme expedition in South America.
0:00:09 > 0:00:10That is mad.
0:00:10 > 0:00:13They're attempting a series of astonishing world firsts...
0:00:13 > 0:00:15Oh, my God!
0:00:15 > 0:00:17..going where no children have been...
0:00:17 > 0:00:18Aah!
0:00:18 > 0:00:21..to get to some of the most awesome places on earth.
0:00:21 > 0:00:22We've reached the top.
0:00:22 > 0:00:26The team are following in the footsteps of the great Elizabethan,
0:00:26 > 0:00:30Sir Walter Raleigh, the first Englishman to explore Guyana,
0:00:30 > 0:00:34as he searched for El Dorado, the lost city of gold.
0:00:34 > 0:00:38Led by survival expert Ben Major
0:00:38 > 0:00:41and record-breaking adventurer Polly Murray,
0:00:41 > 0:00:46the epic journey will push the seven explorers to the limit, and beyond.
0:00:49 > 0:00:52- I can't!- It's all bad.
0:00:52 > 0:00:54I hate you so much!
0:00:54 > 0:00:57- Are you having a laugh? - It's too scary!
0:01:00 > 0:01:03Coming up, a Serious first -
0:01:03 > 0:01:07the explorers spend a whole night alone in the rainforest...
0:01:07 > 0:01:10We can't survive. I want to leave.
0:01:13 > 0:01:15..and face-to-face with a killer crocodile.
0:01:15 > 0:01:16Did you see its teeth?
0:01:16 > 0:01:22Previously, the team have been learning jungle survival techniques,
0:01:22 > 0:01:24from making shelters and beds...
0:01:24 > 0:01:27You've broken it, Michael!
0:01:27 > 0:01:29- ..to fire-lighting... - Ugh!
0:01:29 > 0:01:30..to eating bugs.
0:01:30 > 0:01:32Eugh!
0:01:32 > 0:01:35But it was tiny ants that really freaked Michael out.
0:01:35 > 0:01:39Oh, God, he got me again!
0:01:39 > 0:01:41The leaders had a huge surprise up their sleeves.
0:01:41 > 0:01:45We're going to bung you into the rainforest to survive...
0:01:45 > 0:01:47- By ourselves?- By yourselves.
0:01:47 > 0:01:52- Oh, my God!- Are you joking? - But there was a twist.
0:01:52 > 0:01:56- Not all of you are doing the survival.- Oh, what?
0:01:56 > 0:02:00The team had to vote for two to go on a crocodile survey instead.
0:02:00 > 0:02:05As a lifetime reptile lover, Regan was desperate to be chosen...
0:02:05 > 0:02:06I'm going to vote for Jake.
0:02:06 > 0:02:09But Jake and Josh won the vote.
0:02:09 > 0:02:12- I'm actually speechless. - It's going to be fantastic.
0:02:12 > 0:02:14Regan was gutted.
0:02:14 > 0:02:16Bit upset about it,
0:02:16 > 0:02:20but...what can you do?
0:02:20 > 0:02:25Early next morning, Jake and Josh head off on their treat...
0:02:25 > 0:02:27Have a good time.
0:02:27 > 0:02:31..surveying black caimans - a huge type of crocodile.
0:02:31 > 0:02:36Regan, take care, have fun, enjoy. We'll see you tomorrow.
0:02:36 > 0:02:37See you tomorrow.
0:02:42 > 0:02:46- This is the life. - A little bit of luxury on the side.
0:02:46 > 0:02:50- This is the first fizzy drink in about two weeks.- Two weeks.
0:02:50 > 0:02:55Regan, OK? Flint and steel, three bits of rubber, and a bit of gum.
0:02:55 > 0:02:58The other explorers get ready for their survival night.
0:02:58 > 0:03:01- They're allowed only basic tools... - Fishing rod.
0:03:01 > 0:03:07..including a rod and bait to catch fish, a mosquito net and a machete.
0:03:07 > 0:03:09- Now, get rid of that.- No, I need it.
0:03:09 > 0:03:12You can have that, you can't have the lippy.
0:03:12 > 0:03:16Just checking you are not hiding any food underneath armpits and stuff.
0:03:16 > 0:03:20I tell you, I've done this before and I've seen, literally, people with,
0:03:20 > 0:03:22like, 15 packets of noodles hidden down their legs
0:03:22 > 0:03:25and God knows what else. So I'm just double checking.
0:03:25 > 0:03:29- You may as well have these.- Yeah. ALL LAUGH
0:03:30 > 0:03:34Before heading into the jungle for the survival night,
0:03:34 > 0:03:36there's one crucial last detail.
0:03:36 > 0:03:39Who's going to spend it with who?
0:03:39 > 0:03:42Just out of interest, who here thinks,
0:03:42 > 0:03:46"Whoa, this is just the most amazing thing, I want to go off by myself?"
0:03:46 > 0:03:49- I'd love to do that. - Not completely by myself.
0:03:49 > 0:03:52- Sammie?- I'm, like, scared, and I'm with all these guys,
0:03:52 > 0:03:54and I'm really scared. So if I was on my own,
0:03:54 > 0:03:57I'd be terrified and I wouldn't feel safe.
0:03:57 > 0:03:59Michael, you reckon you're going to be safe?
0:03:59 > 0:04:02- I'll be all right.- That a decision.
0:04:02 > 0:04:05- Michael's going to be by himself. OK?- Yeah.
0:04:05 > 0:04:11- And I would like Sammie to go with Megan.- Yay!
0:04:11 > 0:04:13- You two always go together! - No, we don't.
0:04:13 > 0:04:17- God's sake.- And I would like Nikita to go with Regan.
0:04:17 > 0:04:23- I would rather be by myself. - That's lovely(!)
0:04:23 > 0:04:27He always gets on my nerves. Too much of Regan gets on my nerves.
0:04:27 > 0:04:31I always try to be nice to him, and then it ends up in an argument.
0:04:31 > 0:04:33You guys have got a real common interest in wildlife,
0:04:33 > 0:04:35and that kind of stuff.
0:04:35 > 0:04:38Sometimes you have to do stuff you don't want to do.
0:04:38 > 0:04:41- - I know! I know! - Think about his feelings.
0:04:41 > 0:04:44And how much he wanted to go on the crocodile trip.
0:04:44 > 0:04:47That didn't happen, and look at him now - he's fine.
0:04:47 > 0:04:52Nikita, when I heard that we had to be together, I was unsure as well.
0:04:52 > 0:04:56I know that sometimes we don't get on, sometimes it doesn't work.
0:04:56 > 0:04:59But sometimes in life, you just have to see it through.
0:04:59 > 0:05:02Who would you go with if you could go with anyone, Nikita?
0:05:04 > 0:05:07- Real mature(!) - We can handle talking to a hat,
0:05:07 > 0:05:10but we can't handle talking to a hat with no ears.
0:05:10 > 0:05:13- We're trying to speak to you in a normal conversation,
0:05:13 > 0:05:17so we can sort it out, and you are just going into Nikita mode,
0:05:17 > 0:05:20thinking about yourself. You've got to think about everyone else.
0:05:20 > 0:05:22- I know. You've all told me
0:05:22 > 0:05:25- a million times over! - ALL TALK AT ONCE
0:05:25 > 0:05:29- So are you going to do it or not? - Obviously.
0:05:29 > 0:05:34- So are you going to go with Regan? - Yes! I said that ages ago.
0:05:34 > 0:05:37No-one else heard it!
0:05:37 > 0:05:39It was all a bit a joke for me, because I knew,
0:05:39 > 0:05:42no matter what, we were going to end up going together.
0:05:42 > 0:05:46We've both accepted it now. We're going to go and get on with things.
0:05:46 > 0:05:49I feel better about being with Regan now.
0:05:49 > 0:05:53I don't know why I was like that earlier. I just... I don't know.
0:05:53 > 0:05:57I just feel we have to get on with and carry on.
0:05:57 > 0:06:01When the great adventurer Sir Walter Raleigh came to Guyana
0:06:01 > 0:06:03to search for lost treasure,
0:06:03 > 0:06:07he showed great courage to go where no Englishman had been before.
0:06:07 > 0:06:10Guiding him at all times were local tribespeople,
0:06:10 > 0:06:14who helped him survive in the hostile rainforest.
0:06:15 > 0:06:18By attempting to survive on their own,
0:06:18 > 0:06:21the Serious explorers are about to try something
0:06:21 > 0:06:23even Raleigh never experienced.
0:06:23 > 0:06:27Why are we making such a big fuss? It's only a day.
0:06:29 > 0:06:32This is you guys. Yeah, this is it.
0:06:32 > 0:06:36Good luck. Abandoning you in the rainforest!
0:06:36 > 0:06:41The next 24 hours will push the explorers to their absolute limits,
0:06:41 > 0:06:43both physically and mentally.
0:06:43 > 0:06:49- You're not leaving us here, are you? - Oh, my God!- You are joking?
0:06:49 > 0:06:52I am basically dead!
0:06:52 > 0:06:54This is where I fall over.
0:06:54 > 0:06:56The teams are dropped off in different areas.
0:06:56 > 0:07:01- Confident?- Sort of.- I will see you, hopefully, tomorrow.
0:07:01 > 0:07:04- Farewell.- See you, Michael. Good luck.
0:07:04 > 0:07:09It seems really weird just abandoning you there, I tell you.
0:07:09 > 0:07:13Each team will be observed from a distance by a local guide
0:07:13 > 0:07:14and by a film crew.
0:07:14 > 0:07:18The explorers are not allowed to make contact,
0:07:18 > 0:07:21talking instead to video diary cameras.
0:07:21 > 0:07:25They'll only be offered help in an emergency.
0:07:25 > 0:07:28Meanwhile, Jake and Josh have a surprise stop
0:07:28 > 0:07:30on their way to the project.
0:07:30 > 0:07:34- Oh, my God!- Whoo-hoo! Whoa!
0:07:34 > 0:07:37- That is cool!- And all to ourselves.
0:07:37 > 0:07:41MUSIC: "The Lazy Song" by Bruno Mars
0:07:43 > 0:07:47BOTH: That is so nice!
0:07:47 > 0:07:49- No eels, no anaconda.- No stingray.
0:07:51 > 0:07:55- Never mind them lot. Stay here. - I'm sure they'll be fine.
0:07:55 > 0:07:59With just five hours to sunset, the others urgently need
0:07:59 > 0:08:03to put their survival training into practice and make a bed.
0:08:03 > 0:08:05But Sammie isn't being much help.
0:08:05 > 0:08:09Don't chop that down! It's one of our supports!
0:08:11 > 0:08:15I'm sorry, my concentration span's the size of a pea now.
0:08:15 > 0:08:18How do you actually have the energy? I cannot be bothered.
0:08:18 > 0:08:20Oh, I'm sweating like a pig.
0:08:20 > 0:08:23But I'm going to keep going. SHE YAWNS
0:08:23 > 0:08:26Otherwise, we will not have anywhere to sleep.
0:08:26 > 0:08:32Michael, who's on his own, is taking a very laid-back approach.
0:08:32 > 0:08:37I'll probably make a huge fire in a minute. Might make a bed, if I want.
0:08:37 > 0:08:42But I might just wrap myself in my mosquito net and go to bed.
0:08:44 > 0:08:45Using his flint and steel,
0:08:45 > 0:08:50Michael finally gets on with lighting his fire.
0:08:50 > 0:08:53While over in Nikita and Regan's camp,
0:08:53 > 0:08:57Nikita has managed to smuggle something rather useful past Ben.
0:08:58 > 0:09:01You know what could really help us about now?
0:09:01 > 0:09:06- If you went and got us some palm leaves.- I don't know where any are.
0:09:06 > 0:09:08You could go looking.
0:09:08 > 0:09:11The illegal lighter's been spotted by one of the jungle guides.
0:09:11 > 0:09:15- I'm told you've got a lighter, and I need to...- Oh, that's sad.
0:09:18 > 0:09:19Thank you very much.
0:09:20 > 0:09:24Honestly, don't know what to do now. This is terrible.
0:09:24 > 0:09:28Starving already and I absolutely hate fish, so this is going to be...
0:09:28 > 0:09:31- BLOWS RASPBERRY - ..basically.
0:09:31 > 0:09:36Nikita, we all need to do something. So far, I've done everything.
0:09:36 > 0:09:40- No, you haven't.- What haven't I done? We might not catch food.
0:09:40 > 0:09:47We can get water. All that leaves for us to do is have a decent shelter.
0:09:47 > 0:09:50- OK?- Whatever.
0:09:50 > 0:09:53Getting a good night's sleep will be rather easier
0:09:53 > 0:09:57for Jake and Josh, who have just arrived at the research centre.
0:09:57 > 0:09:59Let's see where you're sleeping.
0:09:59 > 0:10:03- Oh!- This is...- Wow.- Four-poster bed.
0:10:03 > 0:10:06BOTH: Oh!
0:10:08 > 0:10:14- Oh, this is heaven.- Just too nice to be true.- En suite. And look.- Woah!
0:10:14 > 0:10:18- What's that thing over there? - Oh, how nice, though.- What is it?!
0:10:18 > 0:10:21- A flushing loo. - I've forgotten how to use that.
0:10:22 > 0:10:25Sparks go on you, then you light.
0:10:27 > 0:10:29I'm talking to cotton wool.
0:10:29 > 0:10:34Being alone in the forest is starting to get to Megan and Sammie.
0:10:34 > 0:10:39- All right!- Oh, my God, there's a red spider on me.- It's off, it's off.
0:10:39 > 0:10:43They've spent nearly all their time so far building a sleeping platform.
0:10:44 > 0:10:47Try sitting on it, see if it holds.
0:10:52 > 0:10:55- Oh, that took us ages! - Are you saying we give up?
0:10:55 > 0:11:00Megan, I need you to stay positive, because I'm not positive at all.
0:11:00 > 0:11:02I was always scared. Then I thought,
0:11:02 > 0:11:04"What's the worst that could happen?"
0:11:04 > 0:11:09This is basically the worst that could happen, and this is terrible.
0:11:09 > 0:11:13I'm scared we won't have a fire or a bed made. Or anything to eat.
0:11:13 > 0:11:19It's getting crucial now. I don't think we're going to make it.
0:11:22 > 0:11:25What do you think of the shelter?
0:11:25 > 0:11:28- It's all right, but it's still letting rain through.- I know.
0:11:28 > 0:11:30That's cos it's not finished.
0:11:30 > 0:11:34Leader Ben secretly visits each team to check on how they're doing.
0:11:35 > 0:11:39I can easily light my own fire, cos I can get a flame straight away.
0:11:39 > 0:11:40Don't do it now.
0:11:40 > 0:11:43If you're not even going to use the fire, there's no point.
0:11:43 > 0:11:46- There we go, the flame's on it already.- Now we're wasting stuff.
0:11:46 > 0:11:49- It's only one piece of cotton wool. - Whatever.
0:11:49 > 0:11:52I think they could remain dry, if they're lucky.
0:11:52 > 0:11:56But at this current rate, they won't have a bed off the ground,
0:11:56 > 0:11:58so they could get bitten really badly tonight.
0:11:58 > 0:12:00Lots of mozzies, lots of ants, lots of insects.
0:12:00 > 0:12:02And they won't have any food.
0:12:02 > 0:12:06- So, pretty miserable.- OK. On the last one, we put leaves on top.
0:12:06 > 0:12:08Whatever, just...
0:12:08 > 0:12:11Don't fiddle with all the bits that have already been done.
0:12:11 > 0:12:12The other side of this.
0:12:12 > 0:12:15At last, Nikita starts helping Regan out...
0:12:15 > 0:12:17Twist this round here.
0:12:17 > 0:12:21..and the sleeping platform begins to take shape.
0:12:21 > 0:12:24- Bish, bash, bosh. - Now we're working on a base together.
0:12:24 > 0:12:30I'm just happy that she's helping out now and I hope that carries on.
0:12:30 > 0:12:33Nikita, you see that thing there? That support beam?
0:12:33 > 0:12:36- Try not to knock it on your way out. - All right, I won't.
0:12:36 > 0:12:38Sorry for saying that, I just... No, it's all right.
0:12:39 > 0:12:43At first glance, Michael's camp looks very organised,
0:12:43 > 0:12:45but he still hasn't actually done a lot.
0:12:45 > 0:12:50There's about an hour left of daylight, and all he's done is
0:12:50 > 0:12:54rig a mosquito net and put a couple of banana leaves on the floor.
0:12:54 > 0:12:57He's got a fire going, which is fantastic, but...
0:12:57 > 0:13:02it's going to rain tonight, and he is going to get absolutely drenched.
0:13:02 > 0:13:04It's a bit boring being here on your own.
0:13:04 > 0:13:07No-one to speak to, so you speak to yourself, really.
0:13:07 > 0:13:10Not sure what the time is, don't have a watch.
0:13:10 > 0:13:14Don't have any way to find out.
0:13:14 > 0:13:16Ben has found Michael's fishing rod
0:13:16 > 0:13:21and feels it's important enough to briefly break the no contact rule.
0:13:21 > 0:13:26- Michael?- Yeah?- You might need this. Propped against a tree.
0:13:26 > 0:13:30- Thank you.- And also, can you feel the humidity?- Yeah.
0:13:30 > 0:13:35It's going to rain tonight. I'll say no more.
0:13:36 > 0:13:39Despite Ben's warning, Michael does nothing
0:13:39 > 0:13:42but put a few leaves on top of his mosquito net.
0:13:42 > 0:13:45I think he's a little bit scared, actually.
0:13:45 > 0:13:49He doesn't want to go out into the bush and cut lots of plants.
0:13:49 > 0:13:51Cos he is worried about snakes, worried about spiders.
0:13:51 > 0:13:55That's his biggest phobia, but the way he's going about it,
0:13:55 > 0:13:57they're all going to come to him.
0:13:57 > 0:14:00It's one hour to nightfall, and having also failed to make
0:14:00 > 0:14:04a shelter, Megan and Sammie are now trying to catch some food.
0:14:06 > 0:14:07Oh, oh, oh! It's a crab!
0:14:07 > 0:14:14- Let go! It won't let go!- Woah! - Come on. Catch this one for dinner.
0:14:14 > 0:14:16- Ooh, ooh, ooh.- Got one, got one!
0:14:16 > 0:14:19- It's a fish!- Our first fish!
0:14:19 > 0:14:22- It's too small. Put it back. - Bye-bye!
0:14:24 > 0:14:26Here, boys, these are for you.
0:14:26 > 0:14:29THEY GASP
0:14:29 > 0:14:32- No way!- Beef burgers!
0:14:32 > 0:14:36And... Don't say, don't say... Oh!
0:14:38 > 0:14:43- Beef burgers and chips! Woah. - The best dinner ever.- Is it real?
0:14:44 > 0:14:47- It's not cardboard, is it? - It's real.
0:14:47 > 0:14:51- To accompany, a little selection. - You've got to have ketchup.
0:14:53 > 0:14:54Do you not feel bad?
0:14:54 > 0:14:58I do a little, but I think they should be all right
0:14:58 > 0:15:02because they learned quite a lot from the lessons what we did.
0:15:02 > 0:15:06But I think all they'll have is a faulty shelter, really rank fish.
0:15:06 > 0:15:10- Here's to a good night. Cheers.- Nice.
0:15:12 > 0:15:16In contrast, Megan and Sammie have caught absolutely nothing
0:15:16 > 0:15:18for their supper.
0:15:18 > 0:15:24- This might sound stupid, but I'm so scared.- Don't worry, I'm scared too.
0:15:24 > 0:15:27TEARFULLY: I'm trying to get a fire going,
0:15:27 > 0:15:30because otherwise we have absolutely nothing.
0:15:30 > 0:15:33They've got their priorities completely the wrong way round.
0:15:33 > 0:15:36They tried to fish when they haven't got a fire, or a shelter.
0:15:36 > 0:15:38And now it's pitch black.
0:15:38 > 0:15:41Tonight is going to feel like the longest night of their lives.
0:15:46 > 0:15:47SOBBING
0:15:47 > 0:15:50They're getting overwhelmed by their situation.
0:16:04 > 0:16:08They're in such a state that Ben decides once more
0:16:08 > 0:16:11to break the rules of the exercise and step in to help.
0:16:11 > 0:16:16- What's going on?- I'm really scared, I don't like it.
0:16:16 > 0:16:18I don't want to be here at all.
0:16:18 > 0:16:22I'd rather jump into the middle of the ocean then be here.
0:16:22 > 0:16:24We've got no food, no base, the fire won't start.
0:16:24 > 0:16:28It's all going wrong and it's just too scary. I don't like it.
0:16:28 > 0:16:30- I don't want to stay here. - Guys, guys,
0:16:30 > 0:16:35you are winding each other up at the moment into panicking.
0:16:35 > 0:16:40You're going through what people in real survival situations go through.
0:16:40 > 0:16:44That is human nature, that is normal, OK?
0:16:44 > 0:16:47The point is you have to be able to pick yourself up from that.
0:16:47 > 0:16:50You know what I mean? Megan, are you all right?
0:16:50 > 0:16:55- You're huffing and puffing. - I think so.
0:16:55 > 0:17:00- Just got to get that flipping bed made.- Let's do that.
0:17:02 > 0:17:07Ben helps them get started on re-making their bed.
0:17:07 > 0:17:14Did you get that one as well? I'm never camping ever, ever again.
0:17:14 > 0:17:17You've got a roof, you've got all the uprights for the bed,
0:17:17 > 0:17:19and then let's rig your mozzie nets.
0:17:19 > 0:17:23- What do you reckon? - Sorry for being...- No, no, no.
0:17:23 > 0:17:26The key thing is that if you feel like that, take a deep breath
0:17:26 > 0:17:30and go, "Hang on a minute - we're fine. What we need to do here?"
0:17:30 > 0:17:32Now we're going to have a good night's sleep.
0:17:32 > 0:17:34I'll leave you in peace.
0:17:34 > 0:17:37We don't actually know why we got upset now,
0:17:37 > 0:17:39we feel like proper stupid idiots.
0:17:39 > 0:17:44We're a bit hungry, but we have a lovely bed and it is all amazing.
0:17:46 > 0:17:49Jake and Josh are finally heading out with researchers
0:17:49 > 0:17:52on their unique black Caiman survey.
0:17:52 > 0:17:55What would you be doing on a Sunday night at home?
0:17:55 > 0:17:58Getting ready for a Monday!
0:17:58 > 0:18:02The fearsome South American crocodiles are most active at night
0:18:02 > 0:18:06and the project aims to capture them briefly to find out more about them.
0:18:06 > 0:18:09The idea is that you're trying to get one out in the open,
0:18:09 > 0:18:14one that's bold enough and stays up on top of the water.
0:18:14 > 0:18:16Sir Walter Raleigh knew the dangers of these
0:18:16 > 0:18:20ancient reptiles only too well.
0:18:20 > 0:18:22"I had a very proper young fellow,
0:18:22 > 0:18:26"who, leaping out to swim in the river, was in all our sights taken
0:18:26 > 0:18:29"and devoured by one of these Caimans."
0:18:33 > 0:18:36- There is one. There is one. - We've got a baby Caiman.
0:18:36 > 0:18:39The first Caiman caught by the survey team
0:18:39 > 0:18:41is just a few months old.
0:18:41 > 0:18:44Is it rare to bite or does it bite a lot?
0:18:44 > 0:18:48- At this size they won't try to attack yet.- Oh, that's cool.
0:18:48 > 0:18:52- They go sideways, look, watch.- They lengthen sideways.- That is cool.
0:18:52 > 0:18:54Do you want to hold this one behind the head here?
0:18:54 > 0:18:57It's not too bad, it's just like a big lizard.
0:18:57 > 0:19:00Don't want to find his mum though. Oh!
0:19:04 > 0:19:08Before long they're lucky enough to spot an adult Caiman.
0:19:14 > 0:19:16Look at his teeth!
0:19:18 > 0:19:20This is so crazy.
0:19:24 > 0:19:29- Watch, watch, watch.- It's just so huge.- This is to close its jaws.
0:19:32 > 0:19:35- You can imagine swimming in the river.- No!
0:19:35 > 0:19:39- I don't want to swim in the river any more.- With that beast.
0:19:39 > 0:19:42Black Caimans are the biggest type of crocodile found in South America,
0:19:42 > 0:19:45and this one is very big.
0:19:45 > 0:19:49- Jake, he is twice the size of you. - That is scary.- Ready?
0:19:49 > 0:19:52Three, two, one, lift!
0:19:52 > 0:19:56It's not off the ground. It's still not off the ground.
0:19:56 > 0:19:58Ooh, that's heavy.
0:19:58 > 0:20:01It weighs almost twice as much as an adult human.
0:20:01 > 0:20:03120 kilos.
0:20:03 > 0:20:05Well, 26.9.
0:20:05 > 0:20:09Josh and Jake help record other Caiman vital statistics...
0:20:09 > 0:20:12- ..19.- OK, step back, guys.
0:20:12 > 0:20:15..before the powerful creature is released back into the river.
0:20:18 > 0:20:22- That is cool! That is cool! - Woah!- That was phenomenal.
0:20:22 > 0:20:27- It was great, it was so close.- It's been brilliant, every second of it.
0:20:30 > 0:20:32After their earlier differences,
0:20:32 > 0:20:37Nikita and Regan are now working together as a closely knit team.
0:20:38 > 0:20:40Quick, start getting sticks on there.
0:20:40 > 0:20:44Me and Regan finally got the fire going - that is impressive.
0:20:44 > 0:20:46So, yeah, I think I'm going to go to bed now.
0:20:46 > 0:20:50It's not as bad as I expected. But, you know, that's the way it rolls.
0:20:50 > 0:20:53None of the explorers on the survival night
0:20:53 > 0:20:56have succeeded in finding any food.
0:20:58 > 0:21:02- You OK? Yeah. - I missing food so much.
0:21:02 > 0:21:06- I'm actually so hungry it's unbelievable. You?- Yes.
0:21:06 > 0:21:09Some days I have more than two dinners.
0:21:10 > 0:21:12Just about to go to bed.
0:21:12 > 0:21:15Hopefully it doesn't rain at night and I get soaking wet
0:21:15 > 0:21:17and get eaten by loads of ants.
0:21:17 > 0:21:22Night night. Peace out. Bullet ant, eurgh!
0:21:25 > 0:21:30Unfortunately for Michael, Ben's weather forecast proves correct.
0:21:32 > 0:21:34At 1am, there's a torrential rainforest downpour,
0:21:34 > 0:21:38and he's built no shelter to protect himself.
0:21:47 > 0:21:51My back's a bit wet, but otherwise pretty good.
0:21:51 > 0:21:54While Sammie and Megan get a little wet,
0:21:54 > 0:21:57their shelter keeps out the worst of the rain.
0:21:57 > 0:22:00Thank God we built a roof in the end.
0:22:02 > 0:22:07The only team to sleep right through the storm are Nikita and Regan.
0:22:07 > 0:22:09Their shelter holds up perfectly.
0:22:12 > 0:22:16And they're finally woken by the jungle dawn chorus.
0:22:19 > 0:22:23I'm so happy we got the shelter in the end because we had so much rain.
0:22:23 > 0:22:26We only got through it like a team.
0:22:26 > 0:22:30- I think we did the best out of everyone, maybe.- It's morning.
0:22:30 > 0:22:33I'm still alive. Megan's is still alive.
0:22:33 > 0:22:37We made it through the night, we made it through the night!
0:22:37 > 0:22:45We made it. We made a full night in this beautifully horrible place.
0:22:45 > 0:22:48I can't wait to eat something, because I'm absolutely starving.
0:22:48 > 0:22:52I just can't wait to get out of here.
0:22:53 > 0:22:55After five solid hours of rain without any shelter,
0:22:55 > 0:22:59Michael has had by far the worst night.
0:23:04 > 0:23:08Last night did not go to plan at all.
0:23:08 > 0:23:13It absolutely hammered down through all the night.
0:23:14 > 0:23:18I got absolutely soaking wet. See, even my hands are shrivelled up.
0:23:19 > 0:23:22My feet are drenched. But I'm safe.
0:23:22 > 0:23:26Oh, my God, that is the biggest spider I've ever seen.
0:23:26 > 0:23:30It's gone up the tree. Yep, go on.
0:23:30 > 0:23:32Don't stop there.
0:23:32 > 0:23:35We were told we would be picked up at noon.
0:23:35 > 0:23:39And we're pretty sure it's past noon.
0:23:39 > 0:23:41So I don't know what is taking so long.
0:23:41 > 0:23:46- Me and Megan are both really hungry. - Our last resort is beetles.
0:23:46 > 0:23:51I'm not eating a beetle. I'm not that hungry yet.
0:23:53 > 0:23:58I can't wait to get out of here, get dry, get something to eat.
0:23:58 > 0:24:01- Can you hear it?- I can hear it!
0:24:01 > 0:24:06- Oh, my God. Is it them? - I think it is, I think it's them!
0:24:06 > 0:24:10- Were going, we're going, we're going!- We're being saved.
0:24:10 > 0:24:16Didn't I say it'd be three o'clock? 2-3 o'clock.
0:24:16 > 0:24:19- Is it about 2:30, three o'clock? - It's half-past 11.- Ohhh!
0:24:19 > 0:24:24- Are you joking?- What time did you wake us up?!- Sorry!
0:24:24 > 0:24:27- But you survived the night.- Just. - What do you mean, just?
0:24:27 > 0:24:29- We're starving.- We've gone mental.
0:24:29 > 0:24:33I think the key thing about this exercise is it teaches you
0:24:33 > 0:24:35mental toughness.
0:24:35 > 0:24:38They will take from it that they have got to remain strong
0:24:38 > 0:24:42- when circumstances are against them. - I just don't like it!
0:24:42 > 0:24:44I was quite annoyed with myself
0:24:44 > 0:24:48because I don't normally get upset about things that easily.
0:24:48 > 0:24:53I was telling myself, "You are so stupid". Why cry over a bed?
0:24:53 > 0:24:55I hope they don't make us stay here!
0:24:55 > 0:24:57I do feel quite silly about it now
0:24:57 > 0:25:00because I realised it wasn't as bad as I made it out to be.
0:25:00 > 0:25:03But I was just so scared I couldn't contain it.
0:25:05 > 0:25:10- So, what happened?- I got drenched.
0:25:10 > 0:25:12But it was all right, I actually got loads of sleep.
0:25:12 > 0:25:16He took the easy option yesterday, didn't build a shelter,
0:25:16 > 0:25:20thinking it wasn't going to rain. But he got through the night.
0:25:20 > 0:25:23A testament to his character, but I think it has taught him
0:25:23 > 0:25:26a valuable lesson for the future.
0:25:26 > 0:25:29I was kind of disappointed in myself. I always think I know best.
0:25:29 > 0:25:32I should have listened to everyone else and made a bed.
0:25:32 > 0:25:35It would have made it a lot more enjoyable and easier.
0:25:35 > 0:25:38But I am really proud of myself for sticking through it even though
0:25:38 > 0:25:40I was sopping wet.
0:25:40 > 0:25:42- Did your shelter work? - We slept really well.
0:25:42 > 0:25:46But, more importantly, how did you two get on?
0:25:46 > 0:25:50We got on actually very well after the initial couple of hours.
0:25:51 > 0:25:52That's a good thing.
0:25:52 > 0:25:55Spending time with Regan seems to have changed my mind a bit.
0:25:55 > 0:25:57I seem to be getting on well with him now.
0:25:57 > 0:26:01After the rocky start, we just started working together.
0:26:01 > 0:26:05If we had been against each other, it would have been horrible.
0:26:05 > 0:26:09Sometimes I can think stuff like, "Oh, I really don't want to do it."
0:26:09 > 0:26:11But when I do it, it's really fun.
0:26:11 > 0:26:13So I really should try to not do that,
0:26:13 > 0:26:17because it annoys me afterwards. I was like, "I was so pathetic."
0:26:17 > 0:26:19They have used their heads
0:26:19 > 0:26:21and through adversity have come together.
0:26:21 > 0:26:26That was a turning point for them as a pair of people.
0:26:26 > 0:26:28Being able to tolerate and get on with one another.
0:26:28 > 0:26:33The young explorers return to base a little wiser - and a lot hungrier.
0:26:33 > 0:26:35None have eaten for more than 24 hours.
0:26:35 > 0:26:38- Hello, survivors! - Hello, guys.
0:26:38 > 0:26:40Josh and Jake have arrived back early,
0:26:40 > 0:26:43and have quite a surprise in store.
0:26:43 > 0:26:44Right, so we went out last night.
0:26:44 > 0:26:48We went out fishing, out hunting, and we caught a few hotdogs,
0:26:48 > 0:26:50- a few pizzas.- Ohh!
0:26:50 > 0:26:53And then we got some bread, freshly baked.
0:26:53 > 0:26:56We had to wrestle it out of the water though.
0:26:56 > 0:26:58And then I went fishing and caught some crisps.
0:26:58 > 0:27:00My favourite chocolate bar!
0:27:03 > 0:27:06We've got hot dogs and everything. It's like a dream.
0:27:06 > 0:27:10It tastes 10 times better than it usually does because I'm so hungry.
0:27:10 > 0:27:12Every crisp is like, "Ohh!"
0:27:12 > 0:27:15They brought us so much lovely food today, I'm thankful for that.
0:27:15 > 0:27:17I'm really jealous though.
0:27:17 > 0:27:21I would have loved to go on the Caiman experience.
0:27:22 > 0:27:26But the last 24 hours have proved Regan is a serious jungle survivor,
0:27:26 > 0:27:29gaining him fresh respect among the team.
0:27:29 > 0:27:32So, who built the best shelter? Nikita and Regan?
0:27:32 > 0:27:35No, Regan, because Nikita only helped with the last part.
0:27:35 > 0:27:39'He is a really nice person, making the hut and stuff.'
0:27:39 > 0:27:42He was, like, absolutely amazing last night.
0:27:42 > 0:27:45Next time on Serious Explorers...
0:27:45 > 0:27:50An epic challenge - paddling 75 miles down a jungle river.
0:27:50 > 0:27:54My bum absolutely kills, I just want to walk the rest of it.
0:27:54 > 0:27:58And a rare encounter 100 feet up.
0:27:58 > 0:28:00She's checking me out for dinner.
0:28:00 > 0:28:04E-mail subtitling@bbc.co.uk