Original subtitles

Do what? Form an alliance. Our groups against the other two.

Just the first challenge. Then you're on your own.

An adventure camp. Sweet!

Today's challenge will take place in Landslide's Alternate.

MACHINE: Choose a ride to win.

You said you'd help us!

It's Glen! He's the one! Meg, she can't touch it!

Please?

Listen to me, this is important. You can't trust Greenfro.....

We can't trust Greenfront.

That's what Maeve said to us before, you know...

I liked Maeve.

Want to see something cool?

Here. Hold this.

Where are we going? What is this?!

Three wire coat hangers, a bed board,

some repurposed screws and a coaxial cable.

I don't think we're meant to go up there. They won't know.

The point is, if Maeve was right and we can't trust Greenfront,

how can we be sure they sent them home? That's what has us thinking.

I suppose I hadn't really thought much about it.

Where are we going? The roof. We do whatever Greenfront tells us.

We take everything they say as a fact.

What do we really know for sure?

What we need is a way to prove Greenfront are telling the truth.

Are you two related? No. Do we look similar?

No, but you talk similar.

I still don't quite understand why you're telling me all this.

You'll see. Are you abnormally small for your age?

No!

Anyway, they let us go wherever we want in this place

and they don't really keep anything locked.

So, we had an idea. How to prove Greenfront are on the level.

That's where you come in.

Finally!

Could you... Could you get the door?

Yeah, sure.

Why are you looking at me like that?

Oh, my... You brought me here just to see if it would wipe my memory?

Did it?

No! I can't believe you two!

We were, like, 80% it would be OK. Don't make a big fuss about it.

It was mean.

We couldn't use anyone from our group.

You're an important part of this.

This should do, Isabel.

You'd better tell me what we're doing up here.

16 kids can't just disappear without the whole world talking about it.

It would be a huge deal.

We're going to watch the news.

So, it's a week ago.

We're all here but there's no sign of Dragonfly.

Greenfront are panicking.

They think, we'll just get their symbols

and use some other random kids.

Where they're going to get these kids from, I don't know,

but that's the plan.

And so the Artefacts won't notice, they build this.

Monika and Isabel helped them make it.

Those two are like, weird, genius engineers that can build anything.

Then you four show up.

But we use this anyway because it does something they didn't expect.

It allows us to go in by ourselves without the rest of our group.

Fairground, adventure camp.

There are two more environments.

Finding out what they are can help us win.

And you know how to get into them.

I should go.

I helped you...

..in the challenge.

You go into yours, I go into mine,

and you come get me.

Why not ask the others?

Because you get it.

Sometimes you have to break the rules to get what you want.

MECHANICAL ROAR

I think it'll be great.

Come on, best of three. Are you even going to try?

Luka?

It wasn't what I was expecting.

It was a game. We had to touch the right ride.

But there was something else. Something else?

It's like...

Like it wanted us to remember things.

Some of us had been in that fairground before.

How is that possible? It's not a real fairground.

I know. You know what I meant.

But you said they chose us for a reason.

You're not like the others, Louis.

You're curious. Sneaking into your Artefact in the middle of the night.

Of course we'd know. Whatever you're up to, I don't mind.

But my advice?

Don't go digging too deep about who the aliens are.

She went in on her own.

They're going to meet up there. Why would she do that?

Look, Meg, you'll understand when you get...older.

But, erm...

..Kaz and Jay...

I'm 12, not nine.

You have a photo of Bea in your pocket. I'm not judging.

Yep. OK. He's using her.

He's trying to take her away from us.

Just a bit further.

He was right.

Louis.

The Alternate environments are in...

..outer space.

So how do we get into them?

There are hatches. They have weird shapes - numbers, maybe - on them.

Yours is back there.

Why do you want to win so badly? Don't say, "To save the world".

I don't know.

Why are you always so angry?

And the whole scary hair thing.

I'm tired of people older than me

telling me what I need to do with my life.

And I'm not always angry!

Me, Dev - we all just hang out and play video games.

Get into trouble.

I'm never going to be anybody. I know it.

I see it in my parents' faces.

They know it, too.

It's like, all the smart kids at school want to

make their parents proud and I just want to prove mine wrong.

But this...

..I win this...

I can show them all...

..I'm somebody.

You're not nobody. I mean...

..you're on a spaceship.

Louis said we're billions of light years away from Earth.

So right now...

..it's just the two of us...

..billions of light years away from everybody else.

Hey.

With a basic TV aerial, you can just pull channels out of the air.

We all just disappeared. If Maeve and her group suddenly just show up,

it's going to be all over the news.

Then we know Greenfront are telling the truth about letting us go.

Sorry about earlier. It wasn't personal or anything.

I want to be a part of this, wherever it leads.

You owe me. OK.

How do you know how to do this? The aerial?

We can build anything.

We were always quite good at taking things apart

and then putting them back together.

And then we just started putting things together. It's like people.

Who knows what goes on in their heads?

But to understand a machine, you just open it up,

look inside, and it tells you exactly what it is.

We've got something!

TELEVISION: Plinky Plonk has a green ball.

Gree baww! Yayyyy!

Plinky Plonk loves his green ball...

You showed him! Really?! Don't start. We wouldn't have got through

the first challenge without him and you were the one who wanted to

form an alliance. Yes, until we knew what we were doing.

Meg was worried about you. Meg was worried about me?

Can you slow down?!

How is this any different to you four sneaking down here

in the first place?

Cos we weren't trying to break into other people's Alternates!

Which we did do, but not intentionally.

We came down here to find out who they were, not to cheat.

They wouldn't like this. They wouldn't like it?!

He's not down here because he's worried about you.

He just doesn't like me down here.

You ever seen this before?

No.

MACHINE ACTIVATION SOUNDS

MACHINE EMITS ELECTRONIC SOUNDS

They've been watching us.

It wouldn't be right.

Are you sure?

What happened in here?

This whole place feels empty.

Maybe they're shy.

So, what do you think they're like?

They breathe oxygen.

CONTROL PAD BEEPS

We're wasting our time in here.

You find anything?

I'm not sure.

MACHINE BEEPS

BEEPING SPEEDS UP

That's an airlock.

ALARM SOUNDS

Kaz!

Louis! What's happening?! Louis! What is this?

Kaz! She can't hear you!

What is it? It's an airlock. It's going to open.

Get me out of here!

Talk to her! She reads lips! What?!

Tell her it's going to be OK! It's an airlock.

We're going to open it. We're going to fix this.

I can't get chucked into space!

Argh!

Open it! I'm trying! I don't know what any of this stuff does!

Look for an emergency override, like on a train.

Help me!

It's pressurised! That's not going to work!

ALARM SOUNDS

Come on, come on, come on!

What are you doing?!

It's not going to work! It's impossible, Jay!

Come on!

KAZ AND JAY GASP FOR BREATH

Kaz?

Kaz, are you OK?

We're leaving.

Now!

KAZ BREATHES HEAVILY

Kaz.

What is that?

It's that thing again.

ELECTRONIC RUSHING SOUNDS

What just happened?

LOUD SIREN

If they didn't know we were here before, they do now.

We need to go! Go!

Come on!

Our hatch is over here. We can only exit through our own Artefacts.

My hatch is that way, right? Jay..

I'll be fine! Go!

Kaz, come on!

SIREN WAILS

Go left!

Come on, move! Go!

THEY GASP FOR BREATH

No, no, no! No, no, no!

No!

Come on.

They're not letting us back down there again.

Oh, come on, come on, come on, come on, come on!

MECHANICAL ROAR

Where have you been? Come on, you've got to check this out.

Look, about before.

I just, in the airlock... It doesn't matter.

What's going on? Sh! We're trying to listen.

TELEVISION: The mystery of the four local kids who went missing

just over a week ago took a surprising turn today

when they were found just outside a local authority building

with apparently no memory of their time away.

Where have you been? We don't want to talk about it.

How is it you can't remember anything? Leave us alone. Go away!

Maeve.

You all right?

TELEVISION: Thanks for that report. Over to Chloe for the weather.

Who's that?

Don't go digging too deep about who the aliens are.

They're not letting us back down there again.

What are you doing?

Who are you?!

MACHINE POWERS UP

To understand a machine, you just open it up,

look inside...

..and it tells you exactly what it is.