- And the really dangerous parts? - I was thinking about that too.
Right.
Trevor, come quick.
- Sean? - Sean?
- I'm going in. - Yeah, wait up.
Hey, slow down.
I'll be right there.
Someone actually lived here?
That somebody...
...was Liedenbrock.
Look at all his gear.
All this, state of the art...
...a century ago.
Hey, Trevor.
I think I found Liedenbrock's notebook.
Look.
Looks like on the other side of those trees there's some sort of underground ocean.
Yeah.
I don't think that's Liedenbrock's handwriting.
It's my dad's.
Trevor?
Can I talk to you for a minute?
Out here.
Can you wait here for a minute?
Hey, I think I found Max.
I never really got a chance to know him.
I mean, I wish I did.
He wrote something and I want you to hear it.
"August 14, 1997.
Today was Sean's third birthday.
Six weeks ago, I promised myself I would be home in time...
...to give him his first baseball glove.
Now I'm worried...
...that I'll never get the chance.
I set out to make an incredible discovery to share with Trevor and the world.
But now, I would trade it all...
...just to be able to watch you grow up...
...to be the brave and caring man...
...I am certain you will become.
Happy birthday, Sean.
I love you.
Daddy."
Goodbye, Max.
Come on.
According to Max's journal...
...we're here in this giant air pocket that's surrounded by lava.
And during periods of intense seismic activity...
- Like the one we're in now. - That's right.
- The magma that surrounds us...
...turns this place into pretty much just a big oven.
Was that what happened to my dad?
Look, I know I'm just a kid, but I can handle this, really.
Sit down.
Max was planning an escape.
His notes say that temperatures down here can easily hit 200 degrees.
A human being can't survive beyond 135.
- It's already 95 degrees. - It was 82 when we got here.
- Temperature's rising quickly. - So, what do we do?
I say that we follow Max's plan.
Here's what he wrote:
"My analysis of the original Verne text...
...leads me to believe that across the ocean due north of my current position...
...is a geyser-like river which could be used to return to the surface."
So, what we have to do is get across this ocean...
...and find the geyser and just hitch a ride topside.
Topside sounds good.
It's a little trickier than that.
It could get so hot that the water'll evaporate.
How much time do we have?
Forty-eight hours. Seventy-two, tops.
Probably less.
Okay, so the question is:
What is the fastest way to get across the ocean?
There's no way we can get around it, because if we hike...
Oh, we don't have time.
There's no time to do that.
It's all in the book.
Hey, you all right?
What's the temperature doing?
It is a hundred degrees.
Eat your trilobite, Sean. We gotta keep our strength up.
Attaboy.
Hey.
Don't we need a center mast?
No. We don't need it.
The wind that we want is way up there.
Thermal. It's a lot faster than what we got down here.
Good job. That should just about do it.
Hey, I got something for you.
What is this? It's a compass.
It was your dad's.
I remember the Christmas that your mom gave it to him.
She wanted to make sure that he could always find a way back home.
And maybe it will help you find a way back to her.
- Thanks, Trevor. - You got it.
- It means a lot to me. - Me too.
Oh, there's one thing you should know. Down here, the polarity is reversed.
I mean, north is south, south is north...
...and we need to bear due north across the sea.
You mean, south.
Exactly.
All right, it's starting to pick up now.
Okay, hold it. Hold it really steady.
Good, good, good.
- Good. Ready? Yeah.
Three, two, one, go!
- Yeah. All right.
Yeah. All right.
Yeah.
Go, go, go.
Yeah. Keep going.
Whoa, we're going, we're going.
Hey, well, can you wait for me?
Well, get on. Come on, come on, let's go.
He's back.
Hey, little guy.
Seen those clouds?
Yeah.
The current's pulling us in the direction we wanna go. We should lower the kite.
Can't do that. It's a hundred and nine degrees.
It's getting hotter.
We need all the speed we can get. Leave it up.
It's just a little storm.
Ain't no big deal.
Something moving down there.
Phosphorous and plankton.
It's the same thing we saw back at the beach.
I don't know. It looks kind of big for plankton.
Sean, we're not at SeaWorld, so back off a little bit.
- All right? - I think it's some sort of fish.
No.
They're everywhere.
Sean, I told you we'd get to the batting cage.
Batter up.
Okay. Let's see what you've got.
Yeah. Line drive.
- Sean! - Do you hear something?
- Hello? Sean.
- Mom? - I think we have a bad connection.
Mom, I can't hear you.
Where are you?
Uncle Trevor and I, uh...
...we're sort of on a fishing trip and...
Are you having fun?
Whoa, no, you don't.
- Uncle Trevor just caught a really big one. - Sean?
- My phone. - Sean, do you know how to switch hit?
- Ready? Yeah.
Out of the ball park.
- Sean. - Look out.
I got it, I got it.
Sean. No, no, don't.
Get away from the sides.
Look what they're doing.
They don't want us. They want the fish.
Listen up. Sean, you take the tiller, we'll get the line.
Hannah, hold the slack.
Sean, you wanna take us hard starboard?
What?
That way.
Come on.
- Okay. Doing good.
Now just let it out gently. Let it out gently.
Let it out slowly.
It's working.
We're pulling clear of them.
You're the man, Uncle Trev.
That's what I've been telling the scientific community for years.
Hannah.
Let me see.
The lines.
Got it. Sean.
Sean, don't do that. No, Sean.
Sean!
- No, Sean! - Trevor!
- Sean! Hang on!
Don't let go!
No.
Trevor?
Hello?
Hey, little guy. Where are we?
Hey, do you know where I can get some water?
I'm talking to a bird.
I must be losing it.
Sean!
Wait.
The wind blew him this way.
We still heading north?
Yeah, still north.
He's a smart kid. He knows the plan.
I'm sure he'll be waiting by the river.
Let's find that river.
Hey, come on, wait up.
Where'd you go?
Good job.
Okay.
Now which way?
South.
That's good.
The river's north.
Okay.
Here, let me take that.
- No, no, I'm fine. - Come on, let me take it.
- Trevor, I'm fine. - Hannah, Hannah, I got it.
Let's just stop for a second.
Hey, we're gonna find him.
Drink that.
- Is that the last of the water? - Yeah.
We're gonna need that. Keep it.
Hannah, drink it.
Come on.
Duck!
- What the...? What was that?
Large carnivorous plant?
Hannah.
Hannah?
Hannah.
Ugh.
Hang in there.
That's one point for me, right?
Right.
Who's keeping track, right?
I get it.
It's a magnetic field.
No way.
Magnetic rocks?
No, no. No, no, no.
No. No.
You try that without wings.
That's the river.
Geyser must be inside that cave.
Sean!
Where is he?
Trevor?
Man, I really wish I'd read that book.
I don't see him anywhere.
Trevor? Trevor.
Hang on a minute. What are you doing?
I'm going to get my nephew.
Hannah.
This is all my fault.
Save yourself.
Just go home.
I'll wait for you at the river...
...for as long as I can.
What did you do that for?
Just in case.
Sean!
Sean?!
Sean!
Sean! Sean!
Come on!
Oh, God, I'm glad to see you.
Yeah, you too.
- Are you all right? - Yeah.
We should go.
Wait, wait, wait.
- Is that the geyser? - Yeah, that's where we're going.
Come on.
- Haven't you ever seen a dinosaur before? - Not with skin on it.
He's too fast. We're not gonna make it.
- Trevor, what are you doing? - That's muscovite.
Same thing that we fell through before.
There's no way it's gonna hold you.
It can't hold him either. Now you run.
Trevor, no.
It's not breaking, Trevor.
Keep running!
- He's gaining on you. - I know.
Keep going.
Ah! Whoa.
Trevor, it's working.
Look out!
Trevor!
I just remembered something. I hate field work.
Trevor, come on.
That was like... And then you were like...
Yeah, I know. I'm really lucky.
Okay, that way.
That, no good. That, worse.
Let's go.
The river. How are we gonna get to the geyser?
- Water's boiling. - We need something that floats.
Anything. I could use a log or...
What we really need is a boat.
Who had dibs again?
Come on, jump in.
- The best mountain guide on the planet. - Got that right.
You didn't really think you were gonna scare me away, did you?
You'll have to work harder than that.
I'm afraid I'll have to charge you extra for this bit.
Can I open a tab? Whoa.
What was that?
It's not good. That's the river bed.
We're running out of water.
Well, guys, you might wanna hang on to something.
This ride is about to get a little bit...
Bumpy.
- Is everybody all right? Yeah.
Where are we?
What's that light down there?
That's lava.
It's magma, and it's rising.
There's supposed to be water in this tunnel. Steam, water shooting up.
We're too late for the geyser, we missed it.
- What do we do? - Do you have any suggestions, professor?
Without water, no steam. Without steam, we're not going anywhere.
This place looks like there hasn't been water here in two, three hours now.
- But the walls are still wet. - That's impossible, it's 130 degrees.
- Trevor. Behind you. - What?
It is wet.
It's cold. There's water behind here.
There's gotta be water behind some pocket or underground river.
Trevor, it's getting closer.
Hey, that's magnesium.
- We're slipping. - How many flares you got left?
Three. What do you wanna do with them?
Gonna light the magnesium. On purpose.
Hang on.
Oh, come on. It's too wet.
Got to get further down. Give me another one.
Hold my legs.
Come on.
You're gonna have to tie me off. I gotta get down lower.
Trevor, it's getting closer.
That's good. All right, ready.
It's the last one.
Trevor, be careful.
How's that? Little more.
Hurry.
Lower? Little more.
Okay, hold off.
- Come on. Come on.
Come on, light. Come on.
Come on, Trevor.
Still wet. Gonna have to throw it to the other side.
What?
No.
No!
Trevor, come on.
- Trevor, come on. - It's lit, it's lit.
Pull!
- Pull me up. - Hurry.
Pull me up. Pull me up.
Come on, pull it. Pull it. Pull.
Watch the teeth. Watch the teeth.
Sean! Come on!
Get down, it's gonna blow.
This thing's heating up.
I know!
- Hang on! - Trust me, I'm hanging on!
Is that sky?
Hang on, everybody!
- Stop saying that! - It just keeps coming up!
That's Mount Vesuvius.
Hey, Sean, if your mom asks you what you did this weekend...
...you tell her Uncle Trevor took you to Italy. - Italy?
Sean?
What? I just took a few geological samples.
A few geological samples?
A few pounds of samples, but what do you expect? I'm a scientist's son.
Look. Look.
You take this.
You take. We are sorry.
You want slide again?
Slide is okay. It's fine.
Anything what you want.
What was that for?
Now we're even.
Leonard, I'm back. Stop doing what you're doing.
What am I doing?
Oh, look, you're looking for work.
You don't need to, because you have a job...
...with the Asgeirsson-Anderson Institute for Tectonophysical Exploration.
The Asgeirsson-Anderson... What?
Still working on the name.
But the point is, rising tide lifts all boats.
Man, that's awesome.
I think... Am I a boat?
- You're a boat. We're back in business. - All right, dude.
Well, well, well. What's all the excitement about?
- Oh, hey, Alan. How are you? Good.
- What you doing? - Oh, me?
I'm moving into my new lab.
More importantly, where have you been?
I heard you missed your Monday lecture and both of your students complained.
Oh!
I took a quick vacation. Best thing I could've done.
That is exciting.
You'll have to promise to tell me about it, okay?
Not sure if I'll have time, but you can read about it in Scientific American.
Scientific American?
Look, I just want to say, no hard feelings, okay?
About the laboratory moving and expansion thing.
So I'm actually looking for my own building anyway.
How exactly are you going to do that, Trevor?
Well, let's just say I fell into a small fortune.
So tomorrow you're gonna be a Canadian.
Yep. Looks that way.
I'd say that was a lot of male bonding packed into very little time.
What do you say we take a couple weeks next time?
A couple weeks?
- What are you doing over Christmas break? - Nothing. I'm free.
I just found this in your dad's stuff.
Give it a read.
- "Lost City of Atlantis." Mm-hm.
We'll talk.
Sean, what is that?
- I'm just feeding my pet. - What pet?
Sean.
- You think my mom will let me keep him? - I don't know.
Might not even stay here.
- Look at it. - Hey, come on.
- This is your problem. - Where are you going?
I got some food for you. Come on. Come back down here.
Come on.