♪♪ ♪♪ ♪♪ ♪♪ ♪♪ ♪♪ -All right, Mike?

-Here you go.

Get yourself warm here.

-Cheers, Mike.

-How's the coral reef today?

-Bracing!

How was it?

-Freezing my **** off.

-It's good for you, Dolly.

Oh.

-Ah, thank you.

-Yeah, it's a cold one today, innit?

-It's invigorating.

♪♪ -Hey.

Your business cards arrived.

They look slick.

Professional.

-Ooh!

So do you.

Did school call?

-Maths teacher's got man-flu again.

-Oh.

Hangover.

-Hangover.

So, they sent out the Tom Signal.

I'm like a superhero, swooping in to save the day.

-Yeah.

Don't let the kids lock you in the stock cupboard again, yeah?

-That was just banter.

-Yeah.

See you.

-See you.

♪♪ ♪♪ -♪ There once was a place with my little lovely ♪ ♪ Wey hey ho ♪ ♪ And I'll seek and I'll search, and I know that I'll find it ♪ ♪ Wey hey ho ♪ ♪ I know the wind, she blows ♪ ♪ I know the tides are low ♪ ♪ But you'll find me at the white post ♪ ♪ You'll find me at the white post ♪ [Ship horn blowing] [Tense music plays] ♪♪ ♪♪ ♪♪ [Siren wailing] ♪♪ ♪♪ ♪♪ -Evening, sir.

Can I see your license, please?

Mr...Tomlin.

You just got off the ferry?

-I was visiting my son.

He lives in France, with my ex.

-Your taillight's out.

You ex forces?

Get that taillight sorted, okay?

Drive safe.

[Engine starts] ♪♪ -Put a few through that door.

Joe Pineda.

Serial cheat.

-Mm.

Well, let's hope Mrs.

Pineda takes the hint.

You know, I did a bit of my own detective work the other day.

-Oh, yeah?

-I joined Mike's swimming group.

Cold water.

It's supposed to stave off Alzheimer's.

-What, by killing you with pneumonia?

-I've been checking out Mike's new girlfriend, Kat.

-Mm.

-It's serious.

-Well, good for them.

-Are you okay?

-I've moved on.

So should he.

[Sirens wail] [Police radio chatter] Oh, no.

Dan Tomlin's house.

-Oh, the DFLs are not gonna like this.

The estate agent wouldn't have told them about the resident psycho.

-Psycho?

What, that's your professional diagnosis?

-The curtains are twitching.

It's very bad for house prices.

-He's been through enough.

People should leave him alone.

♪♪ ♪♪ [Person gasping] [Inhaler spraying] [Gasping continues] [Tires screeching] -Dad!

[Crashing] Oh!

-Pub quiz on Monday, and then poker night at my sister's on Tuesday.

Her boyfriend thinks he's a bit of a card shark.

He wears sunglasses indoors and drinks Old Fashioneds.

He takes a massive sip every time he's bluffing.

He's a bit of a ..../, but he was nice to me when, you know... -I'll go easy on him.

-No!

Crush him!

Take his last pound.

-Oh, very Christian.

-[Laughs] [Church bells chiming] Are you gonna come in with me?

-No.

I've told you, it's... -It might be good for you.

-I'll see you after.

-Okay.

[Bells tolling] [Cellphone rings] -What?

-Oh, charming.

-It's Sunday.

-So?

It's not like you're at church.

-Course not.

What's going on?

-You've got to come in.

A kid's gone missing.

Kruz Tomlin.

We think he's been abducted.

I'm heading to the station right now.

See you there?

[Siren wailing] [Man speaking indistinctly] -Three, two, one.

And up.

♪♪ And down.

[Indistinct talking] ♪♪ ♪♪ [Gasping] [Inhaler sprays] ♪♪ -Ambulance -- [gasps] -- quick.

It's my Dad.

I don't think he's breathing.

-Kruz has asthma, and he's struggling.

I can tell from his voice.

-Let's be positive.

The phone box that Kruz called from is a mile down the road from the crash.

So, we know he wasn't hurt.

-Okay.

-We've been through the CCTV near your house in France.

Have a look at this.

-What is he doing?

-Did Dan know Kruz was in there?

-Well, of course he did.

He's the one who made him do it.

-You think Dan forced him?

-Well, Dan's only allowed to see him once a week, at our place or at his.

And we have to be there.

And it's only for a few hours.

So, clearly, he's furious about it.

-How does Kruz feel?

-Kruz would never run away on purpose, especially with Dan.

-Why not?

-Dan...has blackouts.

Mood swings.

He... Yeah, he can be violent.

-With you?

-Never.

No.

No.

But...he'd smash things, like furniture, the TV.

And there were times where I had to call the police.

-Is Kruz afraid of him?

-Guys, I don't want to be funny with you, but why are we still talking about this?

Dan can't hurt anyone from hospital.

We need to worry about finding Kruz.

-We -- We drive Kruz to Kent every other weekend, like the court tells us.

And he puts on a brave face, but... I can just tell.

Every time we get off the ferry at Dover, he looks terrified.

-Kruz?

I babysat for him one time.

Yeah, he showed me Dan's medals.

From Iraq.

It always stayed with me how proud he was of them.

-Do you remember when you ran away from home?

-Yeah.

-[Chuckles] You only got to the end of the road.

-Well, I was only 7.

I, uh... never told you why, did I?

-It was to go to Margate, wasn't it?

To ride on the roller coaster.

-Yeah.

[Laughs] Yeah, yeah.

Uh, when we went in the holidays they wouldn't let me on, so... -Yeah, 'cause you were too small.

-Yeah.

Oh, poor kid.

Hope he's all right.

-Yeah.

♪♪ -Kruz, baby.

Wherever you are, can you just -- can you just please get in touch, and let us know you're safe?

We love you, and -- and your dad's gonna be okay.

So don't be scared, all right?

He's in hospital, so he's gonna be fine.

We just love you so much, and... We -- We just want you back home with us.

-Yeah, like your mum says, just -- just get in touch, okay, mate?

Just... call me or text me.

We just want you back safe.

Kruz... ...I'm gonna find you, mate.

Promise.

Wherever you are... I'm gonna find you.

♪♪ [Gasping] [Grunting] [Indistinct talking] -Get off me!

-You've had an accident.

-Eh?!

-You've had an accident.

-You're in a hospital.

Calm down.

-Calm down.

You're in a hospital.

-Kruz.

-Lower yourself.

You're all right, Dan.

-Table five.

[Indistinct conversation] [Pearl chuckles] -I think two stickers, don't you?

♪♪ [Pearl sighs] -Look, I know Tom's a rebound.

I get it.

You've moved on, and then you'll move on again.

-Mum, I'm with Tom.

Get over it.

-But he tucks his t-shirt into his jeans.

-He's lovely.

-What's he doing with all those stickers?

-He's making a difference.

-What, propping up the bar?

-He's only having a cranberry juice.

-Exactly.

A cranberry juice.

Where will it end?

Slippers?

Crosswords?

He's a bad influence.

-Mum, I'm done with moody and tormented.

Okay?

He's a laugh.

[Cellphone rings] And he's good for me.

Please.

Hi.

Nikki.

Okay.

Sure.

No, absolutely.

I'll get there as soon as I can.

Yeah.

I have to go.

-What, now?

-I'm sorry.

Hey, you know what you were saying the other day?

-How your mum doesn't like me, but may grow to respect me?

-No.

Not that.

Sorry.

About you being a superhero, and swooping in to save the day.

-Yes.

-Would you help Dolly just for a bit?

-Okay.

-Thank you.

You're a star.

-Hurry up!

-It's me and you, Dolly.

The dream team.

Prepare to be won over.

-Table Five.

Don't drop anything.

-To the right.

♪♪ -Dan's not cooperating.

He doesn't want a solicitor.

He says he'll only talk to you.

We're gonna charge him.

-With what?

-Kidnapping.

-His own son?

Where's Mike?

-Dinner break.

He's on some new diet where he has to... eat five salads a day.

Don't ask me why.

At least this isn't about you two and all your drama.

This is kind of against the rules, but maybe you can help.

All that matters is that we find the boy.

-Yeah.

-He hates it in France.

-Is that why he hid in the boot?

-He wants to be with me.

-Please tell me you had nothing to do with this, Dan.

I noticed your house is on the market.

-I remortgaged it to pay for the custody battle.

Now I can't afford the payments.

It's just a house for me, but I'm gutted for Kruz.

It's his home, whatever she says.

-I haven't noticed those before.

Did they die in combat?

-Yeah.

-I'm sorry.

-Kruz'll be all right.

I've taught him things.

Survival stuff.

-What, the Bear Grylls handbook?

-I made sure he knows what to do.

In the future.

If something goes wrong.

-He's a 12-year-old boy, Dan.

We need to find him.

-Kruz is scared of the police.

He's seen them taser me.

He's seen them pin me down, and drag me into a van.

I don't want them to be the ones to find him.

-You want me to find him first?

♪♪ ♪♪ -All right?

-Hi.

-Been a while.

-Yeah.

-You been avoiding me?

-Ha.

A bit.

-How's Tim?

-Tom.

-Tom.

Sorry.

-He's good.

-Right.

He knows he can't ring 999 the next time some kids lock him in a cupboard.

-You heard about that?

-Dolly.

I've actually been, uh, seeing someone, too.

-Kat.

-Yeah.

Yeah, how did you...?

Dolly.

-How did you meet?

-Grief therapy.

-Oh.

Good.

-How about you and Tom?

-How did we meet?

Online.

-Oh.

-Yeah.

The algorithm set us up.

-We'll have to get together.

-Oh, you mean the four of us?

-Yeah, just have a drink or something.

-Yeah.

Yeah.

Yeah, why not?

Nice idea.

Not dinner, though.

No offense.

-No.

-You enjoying it?

-If you can enjoy it.

-[Chuckles] -No, it's got good grains in it.

It's, uh... it's hearty.

-Mm.

[Clears throat] [Sighs] -So, you spoke to Dan?

-Yeah.

He didn't know that Kruz was in the boot.

-Well, do you believe him?

-I want to.

-But...?

-Well, a child's missing, so we should keep our options open.

-Our options?

-Well, Dan hired me to find Kruz.

Look, I've already had a bollocking off Nikki.

All I'm interested in is finding Kruz safe and sound.

Dan's a bit of a prepper.

He drilled Kruz about where to hide out in the event of a global meltdown, or a nuclear apocalypse, that sort of thing.

He's given me a list of places he thinks Kruz could be hiding.

It's old bomb shelters and bunkers, that sort of thing.

Dan and Kruz's old haunts.

-I hope this isn't a wild goose chase.

-They're good hiding places.

-But why hide?

Why hasn't Kruz come home, or at least made contact?

-Dan used to take Kruz to these places every weekend before Sky moved him to France.

Maybe they make Kruz feel safe.

-I don't trust him.

-Then trust me.

-We can't afford to get this wrong.

There's a child's missing.

Clock's ticking.

♪♪ ♪♪ Kruz?

♪♪ ♪♪ Kruz?

-Five-star accommodation for the zombie apocalypse.

-I think I'll take my chances with the zombies.

-Yeah, me too.

♪♪ ♪♪ [Cellphone rings] -Anything?

-No.

Tramps, twitchers, and weirdos.

You?

-Nothing.

-Wild goose chase.

-Yeah.

-We've got a development, though.

-Go on.

-Someone just left Dan a voice mail.

From a payphone.

We think it might be Kruz.

-[Gasping] Babylon.

Babylon.

[ Gasping ] -"Babylon"?

What's that mean?

-Some kind of code?

-It's so scratchy.

Are you sure it's Kruz?

-We think so.

Nikki's playing it for Sky now.

-But it's good, though, innit?

I mean, it means he's safe, he's okay.

-We don't know that.

All that we know is that Kruz left a message for Dan -- a cryptic one by the sounds of it.

Something that only he'd understand.

-And you've played it to him?

-Yeah.

He say's he's got no idea what it means.

-Dan, he must have left the message for you because he thought you'd understand it.

-I don't.

-Well, wrack your brains, then.

-I told you where I think he is.

You checked all the places on the list?

-Yeah.

We're halfway through.

-Any luck?

-Nothing.

Why are you smiling?

-Maybe Kruz saw you coming.

Maybe... he doesn't want to be found.

♪♪ -What's it mean, Dan?

Stop playing games!

Where is he?!

-Easy.

Calm down.

-How can I kidnap my own son?

-You stole him!

-You left.

You took him.

He never wanted to go.

-What do you think's gonna happen?!

Where are you gonna go?!

-Enough.

-How long do you think you'll be able to poison him against me?

He'll want to come home!

-I don't care if you've taught him how to put up a tent or light a fire, he's a kid, mate.

And he's gonna be cold and alone.

What's the matter with you?!

-Dan, please.

[Indistinct talking] [Sky sighs] -Hey.

-Why did he call Dan?

Why not me?

-Do you know what this message, "Babylon," means?

-No.

No, it's some weird code.

One of their games.

Dan's brainwashed him.

Look, Dan knows what that message means.

He knows where Kruz is.

-What makes you so sure?

-Oh, you don't know him.

Not anymore.

He came back a different person.

He got violent, and -- and scary.

How can I raise my child with someone like that?

Everyone called him a "hero."

-But they don't have to live with him.

-I didn't want to leave.

I wanted to make it work, but in the end... He said it was a sin to split up a father and son.

This is his revenge.

He never forgave me for taking Kruz away from him.

-Hey.

We'll find him, okay?

♪♪ -Hey, you know I ran away once?

-Yeah.

Your mum told me.

You never made it to the roller coaster.

-Roller coaster?

Yeah, that is what I told Mum.

No, I ran away 'cause I wanted to see my dad.

-Oh, Charlie.

-Yeah, he, um... he went abroad, and... Mum and Dad were never really together together.

But at least when he was here, it was easy to see him every week.

When he left for Canada, I just... I don't know, they tried to make everything as easy as they could -- phone calls, Skypes, I went to see him during the holidays.

But... -Was that enough?

-No.

When he left, I felt like everything was broken, and it was up to me to make things right.

-You know, it's not too late.

-No, I know, I know.

I mean, we still text sometimes, but... Kruz is just a kid, you know?

He doesn't know all of that yet.

-We're gonna find him, Charlie.

-Come on.

♪♪ -Afternoon.

-She's with me.

♪♪ ♪♪ [Pearl sighs] -I was hoping to find a diary.

-Oh, 12-year-old boys don't keep diaries.

-Well, a drawing, or a letter -- something that makes sense of that message.

-What if the bunkers were just a distraction?

A way for Dan to throw us off the scent?

Maybe the message is, too?

Sky said that Dan brainwashed Kruz.

♪♪ [Sighs] I've got a bad feeling about all this.

♪♪ What if Dan's playing us?

He wasn't taking Kruz home.

He was actually running away with him.

Or worse -- He crashed the car on purpose.

-No.

-He might have thought, "If I can't have him, no one can."

♪♪ ♪♪ [Monitor alarms beeping] ♪♪ ♪♪ ♪♪ -She wants another 20 minutes.

Give her 10.

-Sir.

♪♪ [Door closes] [Footsteps] ♪♪ -Leo.

[Exhales sharply] Oh.

I thought you were... -Sorry.

I was just looking for something.

-No, me too.

Sky says you've been looking 24/7.

-I just promised her I'd find him, you know?

-"Babylon."

I mean, you don't know what it means, do you?

-No.

I better keep... -Sorry.

Yeah.

Of course.

-Thank you.

♪♪ -[Sighs] ♪♪ He needs another five minutes.

-Who does?

-Leo?

♪♪ ♪♪ ♪♪ ♪♪ ♪♪ ♪♪ ♪♪ -Call me or text me.

Just... We just want you back safe.

Kruz... I'm gonna find you, mate.

Promise.

Wherever you are, I'm gonna find you.

-Mike.

-Look how he's holding it.

Look, tight to his chest.

Like it's valuable.

-Dan's escaped from hospital.

-This is why he's hiding.

-Kruz... I'm gonna find you.

Okay, mate?

Promise.

Wherever you are... I am going to find you.

-That's not just a promise.

-No.

It's a threat.

♪♪ ♪♪ ♪♪ -There you are.

Mum?

-Charlie.

-I've found him.

♪♪ ♪♪ -Dad!

♪♪ ♪♪ Dad!

♪♪ ♪♪ ♪♪ ♪♪ ♪♪ ♪♪ ♪♪ ♪♪ -No way.

No way!

[Grunting] -Gov, we've had another look at Leo.

He's got no recent record, but we found something from when he was a minor.

-Go on.

-He was a teenager, but he has convictions for possession with intent to supply.

And he got caught coming over on the ferry from Amsterdam.

[Siren wails] -Every other week, he drives across the border, and no one would suspect he's smuggling because Kruz is the perfect cover.

All right.

Good work.

-The bag that Kruz was carrying.

That's what Leo was looking for at Dan's.

-Must be drugs.

-Yeah.

Or money.

♪♪ -Kruz!

♪♪ -Dan.

Dan.

Oh, my God.

-You stay there.

-Jesus, Charlie.

It's okay, it's okay.

I'll -- I'll call for help.

♪♪ -Kruz!

♪♪ [Kruz gasping] Kruz!

♪♪ Kruz!

-[Gasps] ♪♪ ♪♪ [Gasping] Inhaler... -Inhaler?

♪♪ ♪♪ ♪♪ Deep breath, yeah.

Deep breath.

-Charlie.

♪♪ Charlie.

♪♪ ♪♪ -Charlie!

♪♪ Charlie!

Charlie!

Charlie!

♪♪ -Deep breath.

Deep breath.

[Gasping] ♪♪ -Oh, Kruz.

Ha.

Kruz, mate, we've been looking for you everywhere, man.

Listen, don't worry.

I'm here now, all right?

-You stay back.

-Did -- Did you see what happened outside?

-Yeah!

-Right, well, listen.

That's Kruz's father, all right, and he's... Oh, man, he's mental, all right?

He's -- He's... Listen, mate, he was gonna hurt Kruz, all right?

-I said "stay back"!

-I'm just here to help.

-I said you stay away from me!

-No!

Stop!

[Leo and Mike grunting] -No, come on!

Oh!

Kruz!

Kruz!

-Okay.

You okay?

You all right?

Here you go.

Okay, keep you warm.

Okay.

All right, let's get you out of here.

♪♪ [Panting] ♪♪ -You go.

Go on.

-Kruz found out that Leo was smuggling drugs.

You always wondered why he looked terrified when he got to the border at Dover.

-Yeah.

And now we know why.

Do you mind if I just go and see him?

-No, go, yeah.

-Thank you.

-Sir.

♪♪ -I'll get you some water, okay?

♪♪ -So all this was just a cry for help?

-Or two fingers up to his stepdad.

-I don't think he called him that.

-Oh.

No.

-Maybe he just wanted to make things right.

-Dad.

♪♪ ♪♪ -Here you go.

♪♪ ♪♪ -Mike.

Thank you.

I owe you.

-Let me guess, what, spinach smoothie?

Rabbit food soup.

Go on.

Give me your best shot, huh?

-Well, I was -- I was just gonna say maybe a beer?

An oyster stout, for old times' sake.

♪♪ ♪♪ -Ouch.

♪♪ ♪♪ ♪♪ ♪♪ ♪♪ ♪♪ ♪♪ ♪♪ ♪♪ ♪♪ -He only burned some of the money.

He saved the rest for you.

He's a smart kid.

I guessed there had to be more.

Did you know he was in that car?

-Only when I heard him in the boot.

Right before the crash.

If I knew he was gonna do this, I would never have... -So this was all his plan?

-Yeah.

-And "Babylon"?

-We had nicknames for the places we camped out.

The Hanging Gardens.

One of the seven wonders of Kent.

-So you did know?

-I'm really sorry, Pearl, but... It was only after I got the message, and only that he wanted me to find him.

Have you called the police?

-Not yet.

Will anyone be looking for this?

-Leo's small-time.

A chancer.

He made his deal.

It's done now.

-You're sure it can't be traced back to Kruz or to Sky?

-As far as Leo knows, that money went up in smoke.

The money... it would have meant that, when Kruz comes to visit... -He'd have a home to go to.

Good luck, Dan.

♪♪ [Seabirds crying] Will you close up?

-Where you going?

-Neptune.

-With Tom?

[Seabirds crying] -There you go.

♪♪ ♪♪ -Cheers!

-Good health.

-To life.

-A nos amours.

-What's that?

-It's French.

-What does it mean?

-Oh.

"To those we love."

-[Sighs] -Right, then.

Let's get smashed.

♪♪ -♪ La-la la la-la ♪ ♪ La-la la-la la la-la-la ♪ ♪ La-la la la-la ♪ ♪ La-la la-la la la-la-la ♪ ♪ La-la la-la la la-la-la ♪ ♪ Oooh ♪ ♪ La-la la-la la la-la-la ♪