0:00:08 > 0:00:10I'm sure glad you're in your Magnite, Dad.
0:00:10 > 0:00:11Me, too.
0:00:11 > 0:00:15Now help anchor me with these cables.
0:00:15 > 0:00:17Once I measure the strength of the current
0:00:17 > 0:00:19we can launch the remote mapping pingers.
0:00:19 > 0:00:21These instruments will measure the volume of water
0:00:21 > 0:00:24flowing from the melting ice shelf down into the open sea.
0:00:24 > 0:00:28- Dad, are you sure about this? - Yeah, I should be OK.
0:00:28 > 0:00:31Should be OK? Very reassuring.
0:00:31 > 0:00:34Will, you said coming here would be a nice holiday.
0:00:34 > 0:00:37When does that start, exactly?
0:00:37 > 0:00:38Well, you have to admit, Kaiko,
0:00:38 > 0:00:42the world's largest waterfall is an incredible view!
0:00:42 > 0:00:46When you told us this was bigger than Niagara Falls,
0:00:46 > 0:00:50I just couldn't imagine the world's biggest waterfall being underwater.
0:00:50 > 0:00:52Pretty awesome, eh, Jeffrey?
0:00:53 > 0:00:55I can see why this place would get a mention
0:00:55 > 0:00:56in the Chronicle of the Deep.
0:00:56 > 0:01:00A curtain of water and a great tunnel.
0:01:00 > 0:01:03Come on, do you really think there's a tunnel down there?
0:01:03 > 0:01:06I have a theory that the tunnel is hidden behind the waterfall.
0:01:07 > 0:01:11I'll feel safer when we launch the pingers and get back to the Aronnax.
0:01:11 > 0:01:12The current's been measured
0:01:12 > 0:01:15and the information has been downloaded to the pingers. OK, Ant.
0:01:15 > 0:01:17Deploying remote mapping pingers.
0:01:19 > 0:01:23If that tunnel is down there, they'll find it.
0:01:25 > 0:01:26Mom, look out!
0:01:33 > 0:01:34Hold on!
0:01:38 > 0:01:39I've got you, Dad.
0:01:39 > 0:01:40HE GROANS
0:01:42 > 0:01:43Oh, no!
0:01:46 > 0:01:49SCREAMING
0:01:51 > 0:01:53My family are explorers,
0:01:53 > 0:01:55we have been for generations.
0:01:55 > 0:01:57While others look up to the stars,
0:01:57 > 0:01:59we know that there are an infinite number of things
0:01:59 > 0:02:01that shine in the darkness below.
0:02:01 > 0:02:05There are things lurking in the seas that long ago vanished into myth.
0:02:05 > 0:02:08My family are explorers, and we explore...
0:02:09 > 0:02:10The Deep.
0:02:20 > 0:02:21SCREAMING
0:02:21 > 0:02:24I can't pull out! We've fallen a kilometre already!
0:02:24 > 0:02:25What's that sound? It's like...
0:02:27 > 0:02:28Sucking? BOTH: Argh!
0:02:33 > 0:02:35Urgh!
0:02:38 > 0:02:39Sorry, Mom.
0:02:43 > 0:02:44HE GRUNTS
0:02:48 > 0:02:49Whoa!
0:02:53 > 0:02:55GROANING
0:02:56 > 0:02:58And the current just stops? Why?
0:03:00 > 0:03:03- Ant? Kaiko?- I'm OK.
0:03:03 > 0:03:04But Mom took some big hits.
0:03:04 > 0:03:06Kaiko, Kaiko.
0:03:06 > 0:03:08Are you OK? Say something.
0:03:10 > 0:03:12I want a better holiday.
0:03:12 > 0:03:13HE CHUCKLES
0:03:13 > 0:03:14OK.
0:03:20 > 0:03:22Vitals seem OK. How are you feeling?
0:03:22 > 0:03:25Kind of like I fell down the largest waterfall in the world,
0:03:25 > 0:03:28and landed on rocks.
0:03:28 > 0:03:29Dad, Lemurian symbol alert.
0:03:31 > 0:03:33Definitely Lemurian,
0:03:33 > 0:03:35but this is different from the others we've seen.
0:03:35 > 0:03:38You think it means "big tunnel ahead"?
0:03:38 > 0:03:39Wait.
0:03:41 > 0:03:43That's it. What does it mean?
0:03:43 > 0:03:46You said you translated this.
0:03:46 > 0:03:50Well, I translated great tunnel and great curtain of water,
0:03:50 > 0:03:51and some kind of name.
0:03:51 > 0:03:53I don't know, the name of a household pet?
0:03:53 > 0:03:55Hmmm.
0:03:55 > 0:03:58What? Lemurian's hard, OK?
0:03:58 > 0:04:00Now, priorities.
0:04:00 > 0:04:02Let's figure out how to get you back to the Aronnax.
0:04:03 > 0:04:05I might need a minute.
0:04:05 > 0:04:08But seeing as how we're here, maybe we should keep going.
0:04:08 > 0:04:09No, the tunnel can wait
0:04:09 > 0:04:13until we're in the Rover and properly equipped to explore.
0:04:13 > 0:04:15Jeffrey's acting weird.
0:04:15 > 0:04:17Weirder than normal, that is.
0:04:17 > 0:04:18Jeffrey doesn't act weird.
0:04:20 > 0:04:21Jeffrey? Why are you acting weird?
0:04:23 > 0:04:26The current's coming up again. Grab hold of me.
0:04:29 > 0:04:31KAIKO GRUNTS
0:04:31 > 0:04:32Kaiko, take my hand, now!
0:04:36 > 0:04:37I can't reach.
0:04:37 > 0:04:38Yes, you can, try!
0:04:38 > 0:04:40Come on, Mom.
0:04:45 > 0:04:47- I'll get her.- No!
0:04:47 > 0:04:48No!
0:04:49 > 0:04:50- Ant!- Mom!- Kaiko!
0:04:56 > 0:04:57Mom!
0:04:57 > 0:04:58HE GROANS
0:05:03 > 0:05:05Mom, thrusters. Use your thrusters!
0:05:07 > 0:05:09No!
0:05:09 > 0:05:11- Dad?- Ant, good.
0:05:11 > 0:05:12Mom's gone further into the tunnel.
0:05:12 > 0:05:14And she didn't respond to my calls.
0:05:14 > 0:05:16Kaiko, do you read me?
0:05:20 > 0:05:21OK. Stay put.
0:05:21 > 0:05:23- But...- That's an order.
0:05:23 > 0:05:25As soon as the current eases, we'll come for you.
0:05:25 > 0:05:27Both of you. Hope you're hearing this, Kaiko.
0:05:31 > 0:05:33OK, feels like the current is easing up already.
0:05:33 > 0:05:35Then we'll be with you soon.
0:05:35 > 0:05:38Anything there that will identify your location?
0:05:38 > 0:05:42I've got isopods. Big ones. Just like...
0:05:42 > 0:05:44Nah, too big for parasites.
0:05:46 > 0:05:50Ah! Anyone interested in how I'm doing?
0:05:50 > 0:05:53- Mom!- Kaiko.- Mom, are you OK?
0:05:53 > 0:05:55I must have passed out back there.
0:05:55 > 0:05:58I'm a bit woozy.
0:05:58 > 0:06:00Otherwise, I couldn't be better.
0:06:00 > 0:06:02Can you tell us where you are?
0:06:02 > 0:06:06Well, it's not any kind of a holiday destination I'd choose.
0:06:06 > 0:06:08No position data, either.
0:06:08 > 0:06:11Not surprising, down here.
0:06:11 > 0:06:14All right. Fontaine and I are coming in to find you both.
0:06:15 > 0:06:17Stop!
0:06:17 > 0:06:18Nereus?
0:06:18 > 0:06:22- What are you doing here? - And what are you wearing?
0:06:22 > 0:06:25I was monitoring the Aronnax's location,
0:06:25 > 0:06:29I was worried you might be exactly where you are.
0:06:29 > 0:06:31Do not go further into the tunnel.
0:06:31 > 0:06:34But Ant and Kaiko are in there, lost.
0:06:35 > 0:06:39Then understand, this is no tunnel.
0:06:39 > 0:06:40It's alive.
0:06:42 > 0:06:44The tunnel's a creature?!
0:06:46 > 0:06:48- Wow.- How can you possibly think this is cool?
0:06:48 > 0:06:50These walls are living flesh!
0:06:50 > 0:06:54Yes, part of a giant sea worm's digestive tract.
0:06:54 > 0:06:56- Awesome!- No, it isn't.
0:06:56 > 0:06:59It is awesome, but not exactly safe.
0:07:00 > 0:07:03It feeds off the waterfall.
0:07:03 > 0:07:04That's what the current is.
0:07:04 > 0:07:09The creature brings in seawater and sucks in food with every breath.
0:07:09 > 0:07:11So, we could rescue Mom now,
0:07:11 > 0:07:13then find the other end of this thing
0:07:13 > 0:07:15and wait until Ant gets pooped out?
0:07:15 > 0:07:16If I get turned into poop,
0:07:16 > 0:07:19make sure that Fontaine is the one who has to catch me.
0:07:19 > 0:07:22I don't think you realise how serious this is.
0:07:22 > 0:07:26The longer we're in here, the more likely we'll wake the creature.
0:07:26 > 0:07:30- It's asleep?- If it was awake, we wouldn't be alive.
0:07:31 > 0:07:32Then we better not waste any time.
0:07:34 > 0:07:38Kaiko, Ant, don't go anywhere.
0:07:38 > 0:07:41My feet are stuck in some goo.
0:07:41 > 0:07:44I'll try to soften it up with my laser.
0:07:44 > 0:07:46No, that could wake the creature.
0:07:46 > 0:07:48Kaiko, wait until we get to you.
0:07:48 > 0:07:51You need something to hold you when the current comes up anyway.
0:07:51 > 0:07:53'That goo might be just the thing.'
0:07:53 > 0:07:54Roger that.
0:07:56 > 0:07:57I've got those isopods, too.
0:07:59 > 0:08:00I hope they're friendly.
0:08:01 > 0:08:06Ugh! Well, I got one that's super-friendly.
0:08:06 > 0:08:09I can't get it off. This guy's slimy and ugly,
0:08:09 > 0:08:10and doesn't mix well with others.
0:08:10 > 0:08:13'Hey, Fontaine, I finally found you a boyfriend.'
0:08:13 > 0:08:16This from a guy whose only friend is a fish.
0:08:20 > 0:08:21Well, that's strange.
0:08:21 > 0:08:24- They just took off.- I told you you need to work on your social skills.
0:08:26 > 0:08:29They're scurrying off here, too.
0:08:29 > 0:08:30The creature is going to breathe again.
0:08:30 > 0:08:33I've got no way to anchor us against the current without agitating it.
0:08:33 > 0:08:37- Quick, this way!- He knows a way?
0:08:37 > 0:08:38Come on, hurry!
0:08:44 > 0:08:46HE GRUNTS
0:08:46 > 0:08:48Oh!
0:08:48 > 0:08:50Come on, Dad. Up here.
0:08:51 > 0:08:54Oh, no.
0:08:54 > 0:08:55GRUNTING
0:08:57 > 0:08:58Grab onto me with your cables.
0:09:03 > 0:09:04JEFFREY GRUNTS
0:09:06 > 0:09:07Hang on, Jeffrey.
0:09:09 > 0:09:10Jeffrey!
0:09:17 > 0:09:19How did you know this pocket was here?
0:09:19 > 0:09:20It saved me once.
0:09:20 > 0:09:22You've been here before?
0:09:22 > 0:09:26Years ago. The Chronicle records that the hero, Aeolus,
0:09:26 > 0:09:29with a group of fellow Lemurians, found the tunnel.
0:09:29 > 0:09:33But, they realised that the tunnel was actually a monumential
0:09:33 > 0:09:37when they accidentally woke it from its 10,000-year slumber.
0:09:37 > 0:09:38JEFFREY GROANS
0:09:42 > 0:09:43Jeffrey!
0:09:47 > 0:09:48No!
0:09:48 > 0:09:52Monumential? So, that's Lemurian for "giant sea worm"?
0:09:52 > 0:09:55No, it refers to a whole class of creatures.
0:09:55 > 0:09:58Roughly translated, it means "mega big".
0:09:59 > 0:10:02Misread that. I thought it was someone's name, possibly a pet.
0:10:04 > 0:10:08Right. Only Aeolus survived, and honoured the others' sacrifice
0:10:08 > 0:10:11by writing about it in the Chronicle.
0:10:11 > 0:10:13He did include a warning.
0:10:13 > 0:10:16The same warning he posted outside the tunnel.
0:10:16 > 0:10:18That symbol was a warning?
0:10:18 > 0:10:23Dad, I'm pretty sure your Lemurian isn't as good as you think it is.
0:10:23 > 0:10:25You're right. I'm sorry.
0:10:25 > 0:10:27But I don't need Lemurian to get Kaiko back.
0:10:27 > 0:10:28That's what I'm doing.
0:10:31 > 0:10:32HE GROANS
0:10:36 > 0:10:37HE SCREAMS
0:10:40 > 0:10:42Hang on, Mom and Jeffrey, I'm coming.
0:10:44 > 0:10:47The current's subsided, let's go find the others.
0:10:51 > 0:10:53Leave Jeffrey alone.
0:10:53 > 0:10:54Ant?
0:10:56 > 0:11:00- Mom.- I'm glad you're here. There's something wrong with my Knight.
0:11:00 > 0:11:04- What?- My air scrubbers must have been damaged.
0:11:04 > 0:11:07But that doesn't explain why my feet are starting to warm up.
0:11:07 > 0:11:10- A lot.- That goo is eating your suit.
0:11:10 > 0:11:11Stand back.
0:11:15 > 0:11:16You can't stop.
0:11:22 > 0:11:24Is this the current starting again?
0:11:24 > 0:11:26Worse, the creature is stirring.
0:11:26 > 0:11:29Our presence is upsetting its digestion.
0:11:29 > 0:11:33If we wake it, it will eat even faster...and more.
0:11:35 > 0:11:36OK, that's softening it.
0:11:36 > 0:11:38Help me out.
0:11:38 > 0:11:43That stuff must be some kind of acid that breaks down food.
0:11:45 > 0:11:47Jeffrey? How did you...?
0:11:48 > 0:11:51Ah, now, Jeffrey. So your home is destroyed,
0:11:51 > 0:11:53we're trapped inside a creature that wants to digest us,
0:11:53 > 0:11:55and Mom's air is running out.
0:11:55 > 0:11:57There's absolutely no reason...
0:11:57 > 0:11:58PANIC!
0:12:02 > 0:12:04These things are trying to tear us apart.
0:12:07 > 0:12:11These isopods live in the dark. Mom, try your lights!
0:12:11 > 0:12:12Copy.
0:12:14 > 0:12:17Better save power, with your air scrubbers out, you'll need it.
0:12:18 > 0:12:21- We should head back toward the tunnel, mom.- OK.
0:12:21 > 0:12:25But wrestling those bugs has chewed up more of my air.
0:12:25 > 0:12:29Try not to talk, Mom. Save your breath. Jeffrey?
0:12:29 > 0:12:31Where did Jeffrey go?
0:12:34 > 0:12:36Oh, no. The current is coming back.
0:12:36 > 0:12:38Hurry, Mom. Grab something.
0:12:41 > 0:12:44Hang on. Try not to bump into anything!
0:12:48 > 0:12:51HE SCREAMS
0:12:51 > 0:12:52Oh, no!
0:12:52 > 0:12:55'Hang on, Fontaine, we're going after him.'
0:12:59 > 0:13:01HE SCREAMS
0:13:06 > 0:13:08Dad, stay out of the acid!
0:13:10 > 0:13:11Come on.
0:13:11 > 0:13:12HE GRUNTS
0:13:16 > 0:13:19- Everyone OK?- Dad, Mom's scrubbers aren't keeping up.
0:13:19 > 0:13:21She's running out of air.
0:13:21 > 0:13:24Her air is so low, she'll never make it out against the current.
0:13:24 > 0:13:27I'm OK, but getting weaker.
0:13:27 > 0:13:28Hang in there, Kaiko.
0:13:31 > 0:13:33Is that something useful?
0:13:33 > 0:13:35- The pingers!- What about them?
0:13:35 > 0:13:38If the Aronnax is still communicating with the pingers,
0:13:38 > 0:13:40then we can communicate with the Aronnax.
0:13:40 > 0:13:42We can use a remote control signal...
0:13:42 > 0:13:44To control the Rover, and the Rover has air.
0:13:44 > 0:13:46We'll be able to get Kaiko out of here.
0:13:54 > 0:13:55It's all working. Engines on.
0:14:00 > 0:14:01Will.
0:14:01 > 0:14:04My suit won't last much longer.
0:14:04 > 0:14:06Will the Rover make it in time?
0:14:06 > 0:14:08It'll make it, and thanks to the pingers,
0:14:08 > 0:14:10it's got this tunnel's exact location.
0:14:10 > 0:14:13Don't worry, Kaiko. You're going to get that holiday.
0:14:14 > 0:14:16There you are, Jeffrey. Where did you go?
0:14:20 > 0:14:22More bugs. Bigger ones!
0:14:24 > 0:14:27Kids, keep the bugs away from your mother while I steer the Rover.
0:14:36 > 0:14:39OK. We need enough speed to break it clear of the waterfall
0:14:39 > 0:14:41and get to the tunnel.
0:14:46 > 0:14:47I'm in.
0:14:47 > 0:14:48Should be all right.
0:14:49 > 0:14:52Our lights have no effect on the isopods.
0:14:52 > 0:14:55That's impossible, it worked before! Huh?!
0:14:55 > 0:14:58Ant! Whoa!
0:14:58 > 0:14:59HE GRUNTS
0:15:03 > 0:15:06HE GROANS
0:15:08 > 0:15:11Come on, my brother's room is scarier than you.
0:15:14 > 0:15:15Mom!
0:15:17 > 0:15:20Mom. We need to hurry before she loses consciousness.
0:15:36 > 0:15:39- I've lost control of the Rover. - The creature, it's...
0:15:39 > 0:15:40It's waking it up.
0:15:43 > 0:15:46Jeffrey? Hey, the isopods are leaving.
0:15:49 > 0:15:52I've regained control of the Rover.
0:15:52 > 0:15:55Jeffrey. Isopods.
0:15:55 > 0:15:56That's it!
0:15:56 > 0:15:59The isopods go into hiding when the creature is disturbed.
0:15:59 > 0:16:01Quick, we're going to have to fill Mom's Knight with water.
0:16:01 > 0:16:05- What?- Only way to equalise pressure so Mom can get out of it.
0:16:05 > 0:16:07I'm ready.
0:16:07 > 0:16:08Do it.
0:16:11 > 0:16:12Time to go, everyone.
0:16:15 > 0:16:17What are you doing?
0:16:17 > 0:16:19Mom is going to need help when she's in the Rover.
0:16:25 > 0:16:28You'll need this re-breather as soon as you eject from the Knight.
0:16:30 > 0:16:31Do it... now!
0:16:41 > 0:16:44I've got you, Kaiko, we'll be out of here soon.
0:16:47 > 0:16:49Ant, you need to move fast.
0:16:59 > 0:17:01Mom.
0:17:01 > 0:17:03Should I give Mom mouth to mouth?
0:17:03 > 0:17:04SHE GASPS AND COUGHS
0:17:08 > 0:17:09Nice work, Ant.
0:17:09 > 0:17:13The thought of mouth to mouth from you scared Mom back to life.
0:17:13 > 0:17:14Ant, get ready to roll.
0:17:21 > 0:17:22Got to love the Magnite.
0:17:25 > 0:17:26OK, get us out of here.
0:17:29 > 0:17:31Er, Will...
0:17:31 > 0:17:35Don't worry, Nereus, we haven't forgotten you.
0:17:35 > 0:17:37Crude, but very effective.
0:17:39 > 0:17:40Has anyone seen Jeffrey?
0:17:40 > 0:17:43Don't worry, Ant, I've taken care of Jeffrey. Just go!
0:17:47 > 0:17:50THEY SCREAM
0:17:50 > 0:17:51Ant!
0:17:51 > 0:17:53Huh?
0:17:53 > 0:17:54HE GRUNTS
0:17:59 > 0:18:01SCREAMING
0:18:02 > 0:18:04Gotcha.
0:18:04 > 0:18:08- There's the entrance.- It's closing.
0:18:08 > 0:18:09HE GROANS
0:18:11 > 0:18:12No!
0:18:13 > 0:18:15Don't worry, I have a plan.
0:18:17 > 0:18:18No!
0:18:20 > 0:18:22HE GRUNTS
0:18:22 > 0:18:24RUMBLING
0:18:24 > 0:18:25What's that noise?
0:18:25 > 0:18:28We can't stay around to find out.
0:18:28 > 0:18:29You'll need to go flat out to get
0:18:29 > 0:18:31through to the other side of the waterfall.
0:18:31 > 0:18:34- What about you?- Don't argue, GO!
0:18:41 > 0:18:43THEY SCREAM
0:18:58 > 0:19:00Come on, Dad.
0:19:12 > 0:19:13Oh, Will.
0:19:14 > 0:19:16HE SCREAMS
0:19:17 > 0:19:19Will!
0:19:19 > 0:19:21What happened?
0:19:21 > 0:19:24I think I was just burped out.
0:19:24 > 0:19:25LAUGHTER
0:19:29 > 0:19:32I don't know if you should see this, Jeffrey,
0:19:32 > 0:19:35but those pingers mapped the entire giant sea worm.
0:19:35 > 0:19:37What's that tiny dot?
0:19:37 > 0:19:40That tiny dot is the entire Aronnax.
0:19:44 > 0:19:49We didn't wake our friend, but maybe we gave him a bit of a indigestion.
0:19:49 > 0:19:51HE SNIFFS
0:19:52 > 0:19:55Two showers and I still smell like regurgitated seafood.
0:19:55 > 0:19:56Bleurgh!
0:19:56 > 0:20:01I think it's time I gave you some lessons on ancient Lemurian.
0:20:01 > 0:20:03Could you say what the difference is
0:20:03 > 0:20:05between household pets and terrifying sea monsters?
0:20:05 > 0:20:07That would be appreciated.
0:20:07 > 0:20:12Nereus, the Lemurians called creatures like this monumentials?
0:20:12 > 0:20:13That's right. The Chronicle tells us
0:20:13 > 0:20:17that there are still many different kinds of monumentials out there
0:20:17 > 0:20:22in the oceans. Be ready. I'm sure you'll soon find even more.
0:20:22 > 0:20:24But not before my holiday.
0:20:25 > 0:20:27'Are all the monumentials this big?'
0:20:27 > 0:20:28'No, no.
0:20:28 > 0:20:30'Most of them are bigger.'