Desperate Times, Desperate Measures World's End

The Origin has a plan, but there's work to do first.

I need help. Gaia?

I will do whatever he needs me to do.

Do you still have other Gaia's clothing?

We'll come and get you when it's time.

KEYPAD BEEPS

Come on, guys - think.

If mirror matter can only impact on mirror matter, then...

We need some kind of missile to fire into the asteroid, made of...

-..mirror matter.

-Which is invisible. So that'll be easy, right?

-Not helping.

-I'm sorry, but...

how are we going to come up with a plan to save the world

-if our parents couldn't?

-For once in my life, I agree with AJ.

-I am not giving up.

-Me neither.

If we haven't got long left on this planet,

what I'd really like to do is say bye to Mackenzie.

I'd like to say bye to Gregor, too.

Excuse me while I throw up.

OK, what about the object?

It protected the prophecy about the asteroid in the first place,

so perhaps it can tell us how to stop it.

Our parents have already looked into that.

Maybe they didn't know about the stone circle in the cave.

I mean, it was all covered up.

Right... So - object, then cave.

Wait, weren't we told to stay here?

Hm, do as we're told, or save the world?

-Hm, difficult(!)

-OK, I'm coming!

Hey, I could fetch Nelly - we could say we're taking her for a walk.

COMPUTER BEEPS

-COMPUTER:

-'Six hours to impact.'

Titan 2 already has manual override capability,

so why does he want me to disable the mainframe computer?

How should I know? Just get on with it, quick.

Stop telling me what to do.

I serve The Origin, not you.

Come on, Cat - quick.

DRAWERS RATTLE

Got it!

Nice one. Let's get the others.

NELLY WHINES

Come on...do something.

Now what?

Let's take a closer look at that picture again.

-That's Earth being hit by the asteroid, right?

-Yeah...

..but...what's this other picture, next to it?

It's kind of the same, but different.

That's the asteroid being destroyed - look!

You see, that's Earth in the background there, see?

That's one scenario and this here's another.

There's hope for the Earth yet, guys.

We just need to figure out how to destroy that thing.

Look at those - what are those round things? They look like Pictish balls.

They're firing them at the asteroid in a catapult.

Like that's going to work.

What do those symbols say, Luke?

I'd need Lawrence Winters' manuscript.

You see, those symbols look similar

to those on the Pictish ball that you had.

What say we go and liberate it from Casey's room?

Come on!

Hey! Hey, hey! Halt!

Where's your mother? I need to speak to her urgently.

Hey, what are you doing?

It's OK, Sgt Cooper. I can handle this. Mummy's pretty busy right now.

-Is this about you losing your job?

-No, it's about Gregor.

Your insane cousin's kidnapped him.

-Guys, we've got to go.

-No, we can't - Nelly's gone.

Why would she run off like that?

-Nelly?

-It's OK, she wouldn't have gone far.

-I'll help you look for her.

-I'm going this way. Nelly?

-OK, I'll look over there.

-Er, see you guys back at the castle.

It was all a big lie.

Gregor wasn't there.

I don't know what to do.

Casey says if we go to the police, he's going to hurt Gregor.

Where do you think he could be keeping him?

When we were younger, Casey said something about a den,

somewhere along the beach road.

-We could drive down there, maybe - see if we can spot anything.

-Go!

NELLY BARKS

Where's the mutt come from?

There you are!

-What's Moira doing here?

-It's a long story.

Get in the van, we're going to look for Gregor.

Hurry! I thought you wanted to say goodbye to him.

Good girl.

This is where The Origin lived.

He spoke to us from here.

Get that one.

Whoa.

-Hey, what are you doing here?

-Came to find the Pictish ball.

-What about you?

-Oh, great minds think alike.

-Just had a hunch it might be important.

-We thought so, too.

You're not our Gaia.

-Oh, yeah!

-What's she doing here?

Oh, we're working together on a plan to get the clone bots on the rocket.

We're working on a plan to save the world.

-So, do you need the ball, or...?

-No, it's OK.

-Take it.

-Great, thanks.

Lawrence's manuscript.

Catch you later, bro.

Yeah.

This is hopeless! We've been up and down this road twice now.

-Maybe if we had a local map.

-I've got one in the back.

-I hope Gregor's OK.

-You're not going to cry, are you?

I've had enough of that with Moira.

-If that's how you feel, why are you helping her?

-Why wouldn't I help her?

It's not normally your thing, helping people.

And when did snidey remarks like that become YOUR thing?

-I'm sorry.

-I've known Gregor since I was little. He's my friend.

He is. I've just...never told him.

This should help us to pinpoint some local landmarks.

Nelly?

You left the back door open - she's gone!

Nelly? Nelly!

Nelly, come back!

According to the map, this traitor's gate

-should be around here somewhere.

-There are several gates.

It should be to the left of these doors.

-What's that in there?

-Yes!

There, is that it?

-"Flame or fire."

-A fireball?

How does any of this help us?

OK... This might seem a bit out there...

..but those pictures in the cave show these fireballs

being lobbed into the asteroid and destroying it, right?

-Yeah, by catapult.

-Well, that was in Pictish times.

We're a tad more sophisticated these days.

That ball looks pretty solid to me, Slim.

It can't be made of mirror matter.

But what if it contains mirror matter?

Well, if it does, then it can make contact with the asteroid, right?

In theory, I suppose.

Well, then we should test the ball at least for mirror matter, surely?

How do we do that, exactly?

I don't know.

But your mum will.

No!

Do you not have a pass? What about the contact lens? Would that work?

Nope, it's a good old-fashioned lock. We need a key.

There's a great big bunch of them hanging in the cellar.

Nelly?

Nelly? Oh, hi. Have you found her?

-Who?

-Nelly.

Yeah, she's back in the castle, with Luke and the others.

Good.

Have you changed your clothes? You're getting as bad as Lexy.

What's this?

-Is that a gate?

-It's locked.

-Is there a key?

I need to go to the village and say goodbye to Mackenzie.

-We're going to look for one.

-OK, I'll come with you.

-No, wait...

Wait here, and if we find one, we'll come back and let you have it.

OK.

Why did you say that to him?

To keep him quiet and make sure he stays put.

NELLY BARKS

What's she doing? There's nothing there, you stupid dog.

Nelly, come on. Come on.

-NELLY BARKS

-Nelly!

Gaia... Gaia...

Gaia!

GREGOR COUGHS

GREGOR COUGHS

Gaia!

I told you there wouldn't be anyone up here.

They'll all be down in the SZ.

Let's head back to the mess, see if Noah's around.

-He can let us in there.

-Yeah.

-Mom?

-Are we glad to see you!

-Slim has a theory...

-About this Pictish ball.

-Where did you get that?

What would you say

if I told you we think there's a chance to save the world?

Is this some kind of joke?

Far from it. We're deadly serious.

-COMPUTER:

-'Five hours to impact.'

Yes! Noah, you're my hero. You don't know how much this means to me.

-That's OK.

-Thanks, mate.

We'll just let him get down the steps.

Thank you.

Can we just test the ball and see? Please?

-We haven't got time to follow up a hunch, Slim.

-It's more than a hunch!

Those pictures in the cave predicted the end of the world, right?

-And so did the object.

-And Lawrence Winters followed his hunch

and discovered that it was all true.

Now, there are pictures in that cave

that show the asteroid being destroyed.

Yeah, with those.

Well, what if it's true as well?

What if there's a choice to be made here?

OK.

-I suppose there's no harm in running a few tests.

-Yes!

Hello, Gaia.

-Origin...

-Yes.

I have returned.

It's time to fulfil our destiny.