You have been chosen by an alien intelligence
to take part in a contest -
to find the four kids who will save the world.
Save the world? How? I don't know.
If we lose, we forget each other.
I don't think so!
When you opened them, something came out of here.
Whatever it is, it can change how it looks.
It could be anyone!
There's something I need you to see.
Isabel? KNOCKING
Isabel!
We have to stick together!
Things happen when I imagine them.
What things? Impossible things.
In the Alternates,
but I think now in the real world, too.
OK, that's enough!
I don't like this.
We're only strong when we're together.
We've been looking for you!
You were inside that thing!
How did you get in there?
You shoved me in it!
No, I didn't. You wanted me...
You wanted me to see something.
It wasn't me, I swear!
But it might've looked like me.
It got out?!
Seems that way.
Are we sure about her?
I'm not even sure about you.
Everyone's getting paranoid.
An alien that can look like any one of us just decided to go on a walk.
Why'd you lock it up in the first place?
Aren't you all meant to be on its side,
working together?
I...began to have concerns.
When we put it in there, we installed a camera.
It always just sat there, never really moving,
like it was waiting for something.
You were in contact with it.
Did it say anything? What happened?
After days of sitting there, it decides to escape
and push you inside one of those Artefacts.
Why would it do that?
I don't know. It wanted to show her something.
That's what you said.
Shouldn't we all be focused on where it is?
Or who it is?
Can't we just go back to our rooms?
Nobody's going anywhere until we know what that thing's up to.
OK, so either the alien is hiding somewhere in the building
or it's one of us
and they're here in the room with us right now.
If it is one of us,
if it's Luka... It's not me!
Oh, there we go! We have proof, everybody! It's not Luka!
If it was...
..where's the real Luka?
Stuffed, tied-up in a room somewhere, probably.
Just test our blood!
We already have alien blood, Faye.
They changed our DNA, remember?
Didn't change theirs.
Where are the rest of you?
When a group loses a challenge,
a few of us take you home and you don't come back.
That was always the plan.
The last few took Dragonfly.
This is it. It's just us.
We need to search the building.
If we do find one of us stuffed, tied up in a cupboard somewhere,
then we know who the alien is.
Or...we find the alien.
Isabel's got a point.
I mean, we can't just sit here.
And we can't leave you lot alone.
Where are we? I don't recognise this place.
Me neither.
It must have got turned around.
It's a big place.
Shouldn't we go in there?
Go on.
It's the boys' toilets.
DOOR CREAKS
LUKA SIGHS
Ah!
What the...?
Luka!
What just happened?
How can we be in here?
This is what it's like in there.
What?
The alien. It can change reality.
Like we do,
but in the real world.
You can't go out there!
Faye, he'll be fine!
Was it you?
You were there.
You were standing right there.
So were you.
Ah! Oh!
We're meant to stay together!
I went to get my jacket. I was only gone a second.
I had a phone. We could call somebody for help?
Do you have to give me that sucking-a-lemon face
all the time? Depends. Are you actually Isabel?
Yes! Then I'm mad at you!
I didn't want them to lose. I made a choice.
It wasn't your choice to make.
You took Monika's place.
You were playing as Ctrl-Alt.
Do you know your problem?
In here, you're Dragonfly.
And there can only be four of them.
BANGING
Hello?
Who's that? BANGING
Let me out!
Let me out! They locked me up in here!
Charlotte? Is that you?
Yes! Open the door!
Argh!
OK.
Step back.
FAYE: It can change reality! In the real world!
It tricked Luka into stepping outside!
Mal, too. It's taking us out, one by one!
Bea? We have to stay together!
She wasn't here before.
She went to get her jacket.
Was that when it got Luka?
Oh, come on! And what were you doing?
I was with Mal! And he's not here now, is he?
We need a way to figure out who's who.
We can't go on until we can trust each other.
Can we all at least agree on that?
So, how do we do it?
What?
I need to see that video again.
Something I noticed before. It could be nothing.
It's making my eyes go funny.
Stop! There! Play that again!
See? It's just static on the screen.
No! Again!
See? Look closely.
The alien glitches, but not the background.
She's right. That's weird.
Keep going.
Another!
And another!
And another! What's the time between those?
Er, about 16 minutes.
What if it's like a refresh rate on a monitor, but slowed down.
Every 16 minutes, it refreshes - it glitches.
I know what we need to do.
STOPWATCH BEEPS
Well, this is dramatic.
We wait. We don't move.
We keep our eyes on each other, and in the next 16 minutes,
one of us will glitch.
Unless it's not actually one of us.
It is one of us.
I know it. It's not me!
I mean, why would I give us the idea to catch it?
Misdirection?
We couldn't have sat in chairs?
You're all a lot younger than me.
We stood up plenty long enough in here, thanks to you.
Suppose I asked for that.
What's the time?
It's been, like, 30 seconds.
So why did you lock it up?
You had "concerns"?
Us and the aliens -
we were all going to save the world together.
Faith is having commitment with no questions asked.
I started to have questions.
And?
We have plenty of time.
They put information in our heads,
that the world depended on us.
I just wanted to make a difference.
But the idea that they'd changed your physiology somehow.
Then those things open up.
Looking at it, sat there,
I had a bad feeling that we were being used.
I locked it up to keep you safe.
And look how that ended up.
Nine minutes, just about.
Why does she get the stopwatch?
We've had eyes on each other since the office.
It could happen any moment. Can we at least walk about?
No!
Whoever it is could save us the wait and say it's them!
Anyone?
Bea was inside the Artefact.
That puts her on the top of my list.
You said they wanted to show you something?
Show you what? What did you see in there?
It was like...
I don't know.
It put stuff in my head.
It was of Dragonfly.
I got this sense from it.
This feeling that they could be in danger, maybe?
They're gone. They're out.
Yeah, thanks to her!
Yeah, exactly! Thanks to me!
Just over seven minutes.
I don't like this.
You want to go, Faye? You need to leave so you can glitch?
Shut up, Isabel! I don't like this either.
ALARM SOUNDS
What is that? It's the fire alarm!
There's a fire now?! I should go check on it.
Whoa, wait, you stay right there! You can hear that?
How do we know this is real?
That the alien didn't create it?
She's right! I'm going. Someone's keen to leave.
Charlotte, we have to stay put until the time runs out!
There's somebody out there! Bea! It's not real!
It's someone in here doing it just so they can leave the room.
You're sure? Not you, too?!
I don't know! Maybe we should go check?
I'm leaving just for one second - I'm not going to be long!
Charlotte! I'll try to stay in sight.
You stay right there!
It's Faye.
IT'S FAYE!
She's getting away!
We could just lock it in there?
I want to know what's going on.
Me, too.
Are you in here?
CLATTERING
Why don't you come out and talk to us?
How do we know it didn't want us to follow it in here?
Have you seen this place?!
What did you do to Faye?
And Luka? And Mal?
Are they OK?
I know you can hear us!
STEAM HISSES ALL: Ah!
Faye stepped out of an exit door like the others.
She's fine.
Mal may not remember what he's doing here,
but he'll drive them back to the city.
Feel free to leave, too, Isabel.
I only need Bea and Charlotte.
What does that mean?
What's that supposed to mean?!
It's voice is different. The alien's changed.
Isabel!
How do you change reality in the real world?
How is that even possible?
The real question, Bea, is can you?
What?!
How about we make a deal?
A deal?
I'll tell you everything you want to know, and you have to help me.
We can't trust it!
OK! I'll help you!
You're like us, Bea.
You, Isabel, Faye.
All of you.
You carry a part of us inside you.
What are you talking about? You did this to us!
You changed our DNA!
You were all born that way - you've always been like us.
How is that possible?
The Alternates are sandboxes,
safe environments where we can test you,
to see which of you will develop our ability to change reality.
Things happen when I imagine them -
in the Alternates, but in real life, too.
This is about Meg.
The abilities we have are hard to control.
It takes time.
Meg could accidentally create a monster
from a film that scared her.
Or get upset and cause an earthquake.
And soon, Louis will be able to do the same.
Then Glen.
Then Kaz.
They weren't meant to lose.
And now they're out there with no idea of what they're capable of.
FOOTSTEPS
This has always been about saving the world, Charlotte.
Just not the way you think.
It was about saving it...
..from Dragonfly.
If they were meant to win, why didn't they?
Because of you.
Louis wouldn't have been distracted if you hadn't been in there.
So it's my fault?
In the final challenge, Dragonfly would have been taken
off your world, where they can be safely monitored and controlled.
And I'm here to make sure that happens.
It wasn't a prize.
It was a trap!
What do you expect of me?
Get them back!
We made a deal, Bea.
You promised to help. No!
Not for this!
It wiped their memories!
They're too strong.
They'll find a way to remember.
They're my friends! They'll trust you.
If you ask them to step inside the Artefact,
they'll do it.
I left a message to get them back together.
ON PHONE: I'm Isabel.
Bea is in serious danger!
You have to get Dragonfly back here!
Hurry!
I know where they are.
The rest is up to you.
I have to betray my friends to save the world from them?
That's crazy!
I can't.
You saw what Meg did in there, Bea,
she was out of control!
If she could do that in the real world,
if they all could...
..maybe it is for the best.
You said you needed me?
Why?
Someone has to drive.
Bea, what happened?
It's time to save the world.