Original subtitles

We have a serious problem.

What's this?

Tiresias.

Sugarhorse is an MI5 operation in place for 20 years.

It was designed to warn us

of any forthcoming Russian attack on Britain.

We've just ascertained

that the Russians have an equivalent operation

but it's bigger and better.

For perhaps 25 years,

the Kremlin has had a network of sleepers,

high-level assets, in place throughout the United Kingdom.

The Russians call this operation Tiresias.

Tiresias wakes. Exactly how big is this thing?

It's everywhere.

All political parties, civil service,

police service, armed forces, security service, MI-5 and 6.

All of them infiltrated?

All of them! How is that possible?

It was there all the time.

Everything we ever did, everything we gave.

This was waiting for us.

Operation Tiresias, like a node of cancer, biding its time.

There could be hundreds of sleepers, motivated by greed,

ideology, hatred, all unknown, even to each other.

And now Tiresias wakes. What does that mean?

Tiresias has a single purpose to wait until activated,

and then cripple the United Kingdom.

So what kind of attack can we anticipate?

We don't know but we're about to find out.

Tiresias wakes at 3:00 PM today.

That's it. That's all we've got.

The fact is, if the Russian's have sleepers spread

that wide and buried that deep,

we have no way of knowing who we can trust.

If we sound the alarm on this,

we let Tiresias know we're on to it.

If that happens, best case,

they change their plan of attack.

Worst case, they bring things forward.

Which is why we need Connie.

She's a traitor.

She knew the day was coming

when her cover would be blown and she'll have prepared,

stashing away intelligence she would have gathered

from various Russian operations

and that includes Tiresias.

We need a way inside Tiresias and quickly.

She's our best hope.

But Connie's in custody, awaiting due process.

And given the circumstances,

we have to assume Tiresias will be watching her.

No choice.

So we make it look like the Russians took her.

Where is she now?

Awaiting transportation to Nemworth Interrogation Unit.

She knows what goes on at Nemworth. She'll cooperate.

Okay, do it. Pick her up.

I'll meet you later at Ottawa Bravo.

Home Secretary?

I know you.

George Redman, counter-espionage.

Ms. James, I'm here as a courtesy,

to inform you that the service is determined

to prosecute you to the full extent of the law.

You'll be charged with treason-

And the murder of Ben Kaplan, yes.

But first, you'll be transferring me

to Nemworth for interrogation.

Can I finish my tea?

I'm sorry, no.

MI-5.

Tiresias.

A seer, condemned by Dante to spend all eternity

with his head twisted round.

A prophet who could only look backwards.

I'm tired of the dance, Connie.

What do you want?

Somewhere temperate.

Too much heat is intolerable. It dulls the wits.

New Zealand sounds nice.

I'll see what I can do.

I thought the dancing had stopped. Don't see, just do.

Alternatively, I could

always break your fingers one by one.

You don't have the balls.

You don't think so?

Judging by the way you snatched me, this is a black op.

Which means you don't trust MI-5.

Which means you've grasped the scale of Tiresias,

and you're very frightened.

So don't be coy.

What do you have for us?

All of it.

All of it?

I've had 25 years to put it together, Ros.

On and off, bits and bobs, here and there.

And of course, all the motivation in the world.

You know what I want in return.

I spent eight years in a Russian cell.

Eight years! Because I stayed loyal to my country.

I still chew it over,

when I'm lying awake at 3:00 AM, wondering was it worth it?

But, yeah.

It was.

Because I look at you, with all your brilliance

and all your treachery,

and I see everything that I've ever fought against.

Your situation is more precarious than you realized, Connie,

so stop pressing buttons and give us something.

Threats don't work with a person who has nothing to lose.

Oh, you're too ingenious

to think that I'm threatening you.

I'm offering you a simple choice.

Help us or don't.

I'll leave you to compute the implication.

Has Tiresias gone live?

We believe so.

Then have you checked the number stations?

Malcolm, do we still check the number stations?

GCHQ does, yes, as a matter of course.

But it's years since they broadcast

anything remotely germane.

Check them now. Tread lightly.

No one should know you're looking.

Get back to me as soon as you can.

I've never heard of number stations.

They're a curio, a hangover from the old days.

They're codes broadcast daily on civilian radio frequencies.

Snippets of music, random words, number combinations,

meaningless to anybody except the intended recipient.

All you need to pick them up is a short wave radio.

They've been repeating the same 20 or 30 messages

since the mid-'80s.

Hang on.

What?

That's a new one.

What is "Rain from Heaven"?

A ticket to New Zealand,

a new identity, protection.

"Rain from Heaven", Connie. What is it?

If it's big and you give it to us,

we'll give you what you want.

And protection from the Russians. I going to need it.

It's yours.

Because one is familiar

with the benefits of Russian hospitality.

What is it, Connie? What is Rain from Heaven?

When the KGB knew the Soviet Empire was falling,

it put in place certain contingencies.

One of them, Rain from Heaven,

involved secreting portable nuclear devices

around the United Kingdom for use in future deployment.

I beg your pardon?

Portable nuclear bombs.

Whatever happened in Russia, whoever was running it,

the KGB knew they could strike with devastating force

at the heart of Britain.

With a nuclear weapon?

All they had to do was broadcast the right code

to the right sleeper.

Rain from Heaven is the go code

for a nuclear attack on London.

If the sleeper received the go code this morning,

you have a matter of hours

before tens of millions of people are annihilated.

How many hours?

We have till 3:00 PM.

Even if we could evacuate London in time-

It's not possible.

Nine or 10 million, it'll take days at least.

If we sound the alarm,

the panic alone could kill thousands.

We need to locate this device

without signaling to Tiresias

that we know of its existence.

For that I need to ear the number station broadcast.

No.

Have you have any idea what time it is?

Tick, tick, tick.

Each sleeper is assigned a six-digit reference.

250025.

Finland red, Egypt white is a status code.

Followed by a time and location modifier.

It's twice blest?

This is a specific instruction

to a specific sleeper to place the bomb in a specific place,

to detonate at a specific time.

I happen to know Rain from Heaven is a nuclear suitcase bomb

because that's the kind of thing one finds hard to forget.

And the rest?

I don't have it all memorized.

I've got it written down and stashed.

Your insurance policy.

We all need an exit plan. The Tiresias dossier is mine.

Where is it?

Dead drop. London Bridge.

Where at London Bridge?

Oh, most amusing.

Get me there, give me what I want,

and I'll give you the whole of Tiresias,

I'll give you every Russian spy in London,

and I'll tell you who is going to detonate

a tactical nuclear weapon and where.

Tick, tick, tick.

Do you think the Russians don't know you've got me?

Do you think I haven't let them know

where every safe house is?

He's speaking Russian.

Run! Go, go!

We need to split up.

Rendezvous at Catherine Wheel Alley.

How many?

Six, heavily packed, maybe more on the way.

Malcolm? We've got some exigent circumstances developing.

Exactly how exigent?

On a scale of what? I need an escape route.

Well that could be tricky.

Six heavily armed moving in from our east. A kill squad.

Harry, it's a maze down there.

There's half a dozen ways they could cut you off.

So where do we go?

Move, Harry, move!

Keep heading west, go via Brushfield Street.

It's heavily populated. That will afford the best cover.

Do you copy?

Harry?

Well, bring them back!

Yeah, I'm trying!

Stop.

I'm gonna send in CO19, special forces, anyone.

Harry said no.

Sod him.

Look, CO19, the police, special forces, anyone,

they could, in complete ignorance,

be taking orders from Tiresias.

We need to cross London to get the Tiresias dossier.

Assuming we can do that,

we need someone to act on that intelligence.

We're not gonna stop this from happening

if you're not back on the grid.

We'll be fine. All we need to do is cross London.

How hard can that be?

They'll have people listening in.

Keep comms to a minimum and watch the rooftops.

Don't worry, I've got another route in mind.

Good luck.

Anything yet?

No news. They're maintaining comms silence.

Let's hope comms silence is all it is.

At last contact they were in Spitalfields.

They need to get to London Bridge, that's 3/4 a mile away.

What's their likely route?

It's the City,

the highest density of CCTV cameras in London.

Whether above or underground,

they'll be under constant surveillance.

Of the two?

They should go for the tube station.

It offers crowd cover

and the possibility of changing route at the last minute.

But our comms won't work underground.

They're alone.

You trained them.

I trained Connie, too.

Well, if anyone's going to survive,

it's that treacherous cow.

I need to speak to the Home Secretary.

The moment you have anything.

The moment.

Does Rain from Heaven mean anything to you?

Should it?

The Russians are mounting an attack on London

using a tactical nuclear device,

which the Kremlin will then claim was stolen

from a US base within the UK.

Their thinking being, that after such a catastrophe,

Europeans will no longer tolerate US installations

on their soil.

How long does it take to evacuate Parliament?

10-12 minutes.

There's a drill, a regular drill.

Then at 2.45 this afternoon,

you'll receive a call from me, or one of my officers.

If that call comes, you must evacuate the government

and the Royal Family into their deep-level shelters.

There will be no time for a public warning.

Unprecedented scenes

at the United Nations today,

when a Russian delegation accused the US

of failing to report the loss

of several tactical nuclear weapons

from an American air force base in southern England.

Russia claims the devices may have fallen into the hands

of terrorist organizations.

The government has been quick to deny the allegations

that any weapons have gone missing in Britain.

Well, where is he?

He'll be here.

We haven't got time for this.

He'll be here!

Why did you do it?

Why do you think?

People usually turn traitor for fanaticism or reward.

I can't imagine either applies to you.

No, neither did.

After Gorbachev, the humiliation of the Soviets,

we were expected to watch-

While America became a global hyper-power.

No wonder they called it Tiresias.

I'm no friend of the Russians.

You just hate America?

No, I just hate imbalance.

You and I both think the same, Ros. Always have done.

It's why you hate me.

Not because I'm a spy

but because you're looking in a mirror.

Did you lose the eyeball?

If I did it won't be for long.

Well we need to move.

They'll be watching the station.

They're watching everything.

London's riddled with disused tunnels.

We can use them to get to London Bridge undetected.

That way.

How bad is it?

It's fine. It missed all the important stuff.

I'll live.

Don't speak too soon.

That's live.

Shit!

Whose idea was this?

I forget.

Leave it alone! Leave it alone!

It's fine. We don't want any of your stuff.

We just want to pass.

It's not your stuff, it's mine. Leave it alone!

Here, take my watch.

- Leave it alone. - Whatever. Move.

This is the service tunnel we need.

It'll take us directly to London Bridge.

Malcolm?

Nothing yet.

Right, well we're not going to stand around here

and wait for this to happen.

The FSB came after us in numbers.

Their orders were to assassinate Connie and the rest of us.

Do you think they know what's about to happen?

Do you think they know about Rain from Heaven?

An operation of this magnitude would be classified

well above Top Secret.

Well above even a Station Head's security clearance.

But the FSB are here in London with us.

They have families, people they love.

Can we arrange a parlez?

The handshake protocols change weekly.

Can you access them without alerting anyone

in the building?

I shouldn't be able to.

But you can.

Of course I can.

What are you planning?

Truth or dare.

I need to have a chips down conversation

with Viktor Sarkisian.

I've contacted the Russians using the emergency handshake.

I've got a car waiting for you.

Harry, you're walking directly

into the arms of people who want you dead.

Then I'll try my best to be especially charming.

My god, then we're in trouble.

- Hm. - Come back.

What time is it?

Half past.

You're not going to make it.

Your best chance of survival might be-

Might be what?

To go deeper.

You'd do that, would you?

Burrow down here like a rat?

Like a mole.

Yeah, and wait for Central London to be annihilated?

Yes.

And here's you with no love for Russia.

What happens if they're waiting for us

when we surface at London Bridge?

Do they know where the dead drop is?

Of course not.

That dossier is my insurance. Why would I let them see it?

They seem to know everything else.

Do you think I want this to happen?

A nuclear weapon in London?

I am what I am, but I've done more for this country

than you'll ever know.

You ever hear of Bridget Driscoll?

Should I have?

First person ever to be run over and killed by a car.

She was a daughter, a wife, a mother.

But all that's faded away now.

All Bridget Driscoll is, is a single moment.

Whatever you've done for this country, Connie, is gone.

What's lost can never be found.

No! Leave me alone!

Leave me alone!

What would you do if you were them?

Send in a runner.

- So would I. - Move!

What are you doing?

This circle represents a 1.5 mile blast zone

from central London.

All buildings within will be destroyed,

all life extinguished.

They cause great heat and blast.

It's incredible,

we have no more protection now than we did then.

To fall slowly to the ground.

This is what is called fallout.

So these are the two dangers.

First heat and blast,

which is followed by fallout.

The heat and blast is so severe that it can kill

and can destroy buildings

for up to five miles from the explosion.

Start looking now for materials

for your fallout room and inner refuge.

Here is a list of things and some ideas to use.

Bricks, concrete blocks,

bags or boxes filled with earth or sand.

If you cannot get hold of sandbags.

Do you realize your kill-squad is trying

to hit my officers before they can prevent a nuclear weapon

from being detonated in London?

In an hours time, tens of thousands of people will be dead.

If your officers succeed in killing mine,

you will have succeeded in nothing

except killing yourself and your family.

Your country, your own country is about to kill you, Viktor,

and I'm here alone to tell you that.

If I'm lying, well, keep me, ship me to Russia.

If the best you can hope

from this operation is Connie James,

I'm a much bigger prize.

The FSB can do with me whatever it is

it does with people like me.

Viktor, look at me! We're short of time.

If I'm lying, (sighs) what's the worst that can happen?

You can make a gift of me to your superiors,

a senior British intelligence officer.

If I'm not lying,

your children have less than an hour to live.

Okay.

Okay.

I believe you, Harry.

They've gone underground. The old Tube tunnels.

Communication is impossible

so I need to know their destination.

Where are they headed?

Harry, come on.

You came to me for help, so accept it.

What is their destination?

Get me a map.

Quick!

Service tunnels will take you to the surface, that way.

What are you gonna do?

Beretta 9 mil, standard NATO issue.

Two rounds expended. I'll draw them off to the platform.

It's through there.

Shit!

No!

- Da? - Andrei, stop!

It's your lucky day.

Which one is it?

This one.

It's fine.

It's fine. They're here to help.

How nice. What's the code?

34590X\Falls The Shadow.

It's all here. Every sleeper they've got.

The bomber?

2-5-0-0-2-5. The bomber's name is Walter Crane.

The bomb's at Grosvenor Square.

Wait.

By the time you've mobilized the Broken Arrow Unit,

it'll be too late.

Even if they arrive in time, which they won't,

they're dealing with a Cold War weapon

they've never experienced and don't know how to work.

Bring it to me, I'll do it.

What?

I'll do it.

Have you got anyone in Grosvenor Square?

It's the American Embassy. We practically live there.

Bring us the bomb.

Are you insane?

No time to do anything else.

Bring us the bomb, we take it underground.

If the bomb detonates, we lose central London

but we minimize radioactive fallout.

And I need a working light and a tool kit.

And a bottle of gin.

Mr. Home Secretary. This is MI-5, Section D.

Harry Pearce told you to expect a call.

This is that call.

You know what to do.

Very well.

I'm sorry, sir, but you do need to hurry.

Yes. Of course, I-

Good luck.

And to you.

Anyone you need to call?

Well, um, Mum will be watching "A Place In The Sun"

and waiting for "Countdown."

She loves "Countdown."

Why spoil it, eh?

This is the Home Secretary.

I'm invoking protocol Landslide.

That's right, Landslide.

Now.

The major incident alert has been activated.

Please make your way to your designated deep-level shelter.

The major incident alert has been activated.

Please make your way to your designated deep-level shelter.

The major incident alert has been activated.

Please make your way to- - Come on, Harry.

Nervous?

Should I be?

Right.

You should both leave.

Hurry up, please.

I thought you weren't nervous.

I'm not.

Fine. Stay.

Connie?

This isn't an improvised explosive device

cooked up by some halfwit undergraduate.

There are fail-safes and back-ups.

By cutting that wire, I've initiated a secondary countdown.

A conventional explosive would go off

in less than two minutes.

If I haven't removed the uranium,

it will cause a chain reaction

and a nuclear explosion.

I need to remove the shell from the central housing

and separate the two isotopes.

When I do that,

the bomb cannot reach critical mass

and will no longer be nuclear.

It will, however, go up in my face.

The bomb kills whoever disarms it, so go, please.

Both of you.

No.

What you've lost can sometimes be found, Lucas.

I remove the uranium.

It's just a bomb.

I'm not scared of bombs.

Connie.

Oh, Lucas.

At 3:00 AM, when you can't sleep and the nightmares come,

who do you blame for what happened to you?

Eight years in a Russian hell? Who do you blame?

I blame Harry.

Then it's time to let it go. It wasn't Harry's fault.

Who was it, Connie? Who sold me out?

You have 10 seconds.

Who was it?

- Nine seconds. - I need to know.

- Eight seconds. - Just say it!

Leave now.

It was me, always me.

I need a Broken Arrow Unit with full Hazmat Containment

with probable radiation leakage.

London Bridge.

You okay?

They'll never know.

No.

And that's a good thing, Lucas. You know it is.

I need to talk to Harry.

Harry?

Has anyone made contact with him?