Original subtitles

The evidence we have found suggests

that Daniel Hodge was not killed in Baltegrad.

It was Shen Jia and a male accomplice...

So she's our suspect?

I want to show you something.

One of our men took the footage of the event with a night-vision camera.

I don't know who that is.

Get me everything you can find on Mark Cunningham.

The Minister for Energy and Green Transition

has been kidnapped by a man named Jason Collyer.

He's a very dangerous individual.

The Government has got 24 hours to publish the truth

about what they are already doing on Svalbard.

Miss the deadline and I'll shoot him.

What's Jason done?

He planted a bomb at the university.

Jason is wanted for kidnap and murder.

Jason's girlfriend is on the move.

Track my location and send a team.

Did you leak details of your mission to the Russians?

My God - I'm not a traitor, I'm her boyfriend.

The professor withdrew his support for the seabed mining

after coming here. Oh, God.

We know there are questions about the report.

We found traces of explosives on your sweatshirt.

Chloe...

I saw who moved the man's body.

I saw their face. Very clear.

Under no circumstances do you leave this room.

They told me no-one would get hurt.

I never meant for this to happen. Chloe, no!

She's been stabbed.

She's dead.

Kirsten, why is she here?

I...

I don't know.

Right, we need to secure the scene for forensics.

You need to bag that.

Right, everybody needs to leave.

Right, OK, nobody touch anything. OK?

OK. Come on, let's go. Out of my way.

Out of my way!

What has happened here?

I don't know.

We...

She was already dead when we got here.

She shouldn't even be here.

I know.

Korotayev sent me here...

and he said you had taken her.

Is that true?

Yes, but...

I...

I didn't have anything to do with this.

I mean, I couldn't have.

You were with me when we found her.

Come on. Director, I didn't do this!

Then why is she here?

Come on. Let's go. Please.

This area needs securing for forensics.

Come on.

Thanks.

Will she live?

It's too soon to say.

Listen...

We should, er...

You know, we should talk about what was said in there.

It's not me you have to explain it to, Minister.

Excuse me.

This DI Kirsten Longacre, please leave a message.

Hey, love. Can you call me when you get this?

This doesn't look good.

Another Russian killed.

I can't have murdered Polina.

I was with the director.

Doesn't mean that you weren't part of a conspiracy to murder her.

You brought her here. Yeah, because she asked me to.

Polina was scared.

When I was leaving Baltegrad, she asked - she begged me to...

Begged you? Yeah, she begged me to bring her back here.

She wanted asylum to the UK

in return for what she knew about Hodge's killer.

It's not the first time someone has tried to defect on Svalbard.

Who else knew she was here?

Just my superior back in Scotland.

Who could have told the British soldiers.

See, why would I want Polina dead?

Why? That's for an investigation to find.

Can we keep this to ourselves until then?

I'm afraid it's too late for that.

What do you mean?

Korotayev already informed Moscow about the situation.

And they insist he deals with this matter personally.

And they demand you arrest DI Longacre, now.

So, Jason's in a cell downstairs.

His lawyer's on the way.

What's going to happen to the minister?

He's writing his resignation letter as we speak.

I'm not sure what I'm going to say to his wife.

Did you know that he was covering up the seabed mining report?

No, of course not.

It's not in our remit to investigate our own government.

Maybe it should be.

Gordon has been championing environmental issues

since he was on a backbencher.

I never thought he'd compromise on that.

I think there's cause for a criminal investigation here.

You may be right.

But not until after there's been a full Parliamentary inquiry.

Excuse me.

What's the update on Chloe?

She's stable.

The doctors are keeping her in a coma until the swelling...

Well, to see IF the swelling reduces.

They had to take that shot, Amy.

I had it under control.

You were a hostage.

She planted a bomb that nearly killed you.

That did kill someone else.

Chloe said she didn't want to hurt anyone.

There's no motive for her to blow up the lab.

Not with Vincent and Jason in it.

Yet she had explosive residue on her clothes.

I think that Chloe was manipulated

into putting that bomb into Jason's bag.

She was trying to tell us that someone had got to her.

Who?

I don't know,

but it's got to be connected with what's happening on Svalbard.

OK. We'll start going through her phone, her emails...

Our analysts can help.

If you're right, we'll find them.

Thank you.

What is it?

There's a situation on Svalbard.

It involves Kirsten.

Is Mum all right?

Yeah, she's not hurt or anything like that, it's...

It's just something went wrong with work, and...

Well, now she can't leave.

And you're going over there to sort it?

Yeah.

I'll only be gone a few days,

and your granny's here.

Too big for hug?

Never.

Hey, don't worry.

I'm going to bring Kirsten home. I promise.

DCI Silva.

Welcome to Svalbard.

You didn't have to come and get me, Director.

Unfortunately, we don't have a lot of time

before the Russians arrive at the hub, and...

it would be good for us to talk alone.

You're walking into a bit of a bear pit.

It's that bad?

Keeping the peace has to be priority.

If only Kirsten had come to me before going to Baltegrad, then...

How is she?

As good as can be expected.

I had to confine her to her room to stop the Russians from complaining.

They've been waiting for an opportunity like this.

Before the invasion of Ukraine,

Putin claimed Russians were being killed in the Donbas.

12 years before that, he said the same thing about Georgia

and sent troops in.

He won't have to lie this time.

You think they'd go to war over this?

Well, we can't let it get to that.

I mean, if Russia were to try anything,

then NATO would respond, and, er...

This needs to stay a police matter.

What are you doing to find the killer?

Well, I've locked down the hub,

so whoever it is will still be in there,

and my team are establishing everyone's alibis.

Will I be allowed to investigate?

No. Officially, you're only here

so the Russians can have someone else to shout at.

And unofficially?

Between us...

my superiors are happy for your DI to take the fall

if it'll keep the peace.

Take the fall? She hasn't done anything illegal. I know.

I know, but if the Russians can't get her on conspiracy to murder,

they'll... push for kidnap or false imprisonment.

It could get ugly.

I'll...

I'll buy you some time,

but we need to find Polina's killer soon.

Amy! DI Longacre.

I have a few things to finalise before the Russians arrive.

Can I leave you to it? Of course.

Oh, God...

Oh...

God, you took your time.

I missed you too.

How are you?

Never better.

I'm surprised they sent you.

Sir Ian had to pull a lot of strings.

See, what happened wasn't my fault. I know...

OK? I did everything I was supposed to. I know.

Just...

Tell me everything that happened.

The Russians are here -

and it looks like they've come mob handed.

I don't like it. They're up to something.

Are the comms ready?

Yeah, Anderson's got 'em.

He's just finishing up the surveillance.

We stay alert, but keep a low profile.

We don't break cover until we have to.

You got your priorities straight?

I need you focused.

You can rely on me, boss.

And that was the last time you saw Polina? Yeah.

I was gone less than an hour.

You locked the door when you left her in here?

No. No, I rolled out the red carpet.

It's just that there's no sign of forced entry -

and if you'd forgotten...

No, I didn't forget.

Polina was the key witness in the Hodge case.

So, whoever killed her might have been trying to silence her?

Just how... how did they know that she was here?

I don't know.

I made sure no-one saw me bring her in.

OK.

I'm going to sort this, OK?

I'm sorry, but the Russians are already here.

Stop here.

Arms like this.

Is this really necessary, Director?

Mayor, this is DCI Silva.

I know who she is.

It's good to meet you.

I wish it was under better circumstances.

If circumstances were better, we would not be meeting.

Can we get started?

I'm afraid your men will have to stay here.

Fine.

Follow me. Follow me.

Watch them like a hawk.

Yeah.

If anybody comes in or out, we'll know.

What is she doing here?

This was all agreed.

But it is her we are here to talk about.

Please.

Sit.

DCI Silva, perhaps you could...

Sure. But I'd like to say something first.

I know how it looks, me bringing Polina back here...

but yesterday, you called the director

and told him that I had her in my room.

How did you know that?

I am not here to answer your questions.

Because this isn't the first time someone's leaked information to you.

Someone told you about Shen Jia leaving, as well.

Presumably that came from FSB intelligence?

Presume what you want.

We need to know who's spying in this hub.

Are you trying to blame Polina's death on us?

Director, we need a full investigation

to establish the facts of Polina's murder.

I agree.

Colonel Zamorin should be the one to carry it out.

You know I can't allow that.

Why not?

People from 40 different countries live in this institute.

And, with respect, Russia's reputation is not the best.

If I were to give free rein, then there would be a riot.

My hands are tied.

I understand, that you're suspicious,

and, although we disagree on her motives,

my DI was wrong to bring Polina back here.

But that's not what killed her.

I think we all want the same thing

here - which is to find out whoever did.

What do you propose?

Well, given the circumstances,

I think it makes sense that the investigation

is to be led by the Russian police -

but, for the residents of the hub to accept it,

I assume it needs to look like an international investigation.

Which is where I can help.

You want to investigate your own officer?

Well, Colonel Zamorin will be in charge,

but I'll... observe,

advise.

I'll work with him, not against him.

Of course, there would have to be a Norwegian officer on the team.

This is our jurisdiction.

OK.

But I'll remain in the hub while my officer goes about his duties...

We're all agreed. DCI Silva can shadow the investigation.

In a cold storage room at the far end of the hub,

Colonel Zamorin will meet you there, along with my Deputy, Olsdatter.

I need to update Oslo.

I didn't mean what I said in there. I know.

It's just what they need to hear. I know.

Stay in your room until I sort this out.

Jesus!

Oh, Cunningham?

Sorry.

I didn't mean to scare you.

Yeah, well, you did a shit job at that.

What are you doing here?

The last time I saw you, you disappeared.

Now there's a dead Russian in the hub.

I just want to find out what's going on.

The investigation's ongoing -

and I'm not at liberty to share anything more with you.

I have been ordered to stay here in my room, until it's over.

Hodge's killer still hasn't been found,

and the longer Jia's out there on her own,

the less chance I've got of finding her alive.

But if I'm going to help her, I need to know why the Russians want her.

Is it something Jia was working on?

She wouldn't talk to me about that.

I'm not a scientist.

Right. Well, then I need to speak to one.

I thought you were to stay here?

I'm here to do a job. I'm going to see it through.

You can go now.

Do you mind if I come in?

Hi. Hello.

I am Deputy Olsdatter. DCI Silva.

Please. Thanks.

OK.

Ready to observe and advise?

Because of the situation, a full autopsy was not possible.

But it is clear that she was killed with one stab wound.

Which you see five, maybe six centimetres above the navel.

Was the murder weapon found?

Yes.

Right next to her.

The killer was clever not to leave any prints.

The only ones on it are Polina's,

from when she must have pulled it out.

There's no defensive wounds on the hands and arms.

She didn't have time to defend herself.

There is only one stab wound.

From the position, I'm guessing the aorta was punctured.

It would explain why she bled out so quickly.

But to hit the aorta with only one attempt...

The killer got lucky.

Or highly trained, yes.

Why did she leave Kirsten's room in the first place?

Because the killer found her?

Well, there's no sign of forced entry.

DI Longacre left her door unlocked.

She said she didn't.

Junior officers lie to their superiors all the time.

In Moscow, maybe.

There was no sign of a struggle in the room...

Because she ran away.

The struggle happened later.

In the lab, where she was killed.

I'll show you. Come on.

Are you all right?

Fine.

It was just a shock, seeing something like that.

I mean, you never get used to it.

I don't think we're meant to.

Thank you.

I'm sorry, but...

Well, I've come to ask a few more questions.

What about?

Jia.

I was...

Well, I was hoping you could help me understand about her research.

Jia worked in phycology.

I'm a geologist. There's not much overlap.

OK, but... well, I don't know much about phycology,

and I'm guessing it's got nothing to do with Freud?

Phycology's a type of microbiology.

And that's what Vincent Mair was, wasn't he? A microbiologist?

OK, so, what, that's two microbiologists.

One dead, the other missing.

And you met them both the night before, didn't you?

I met with Vincent to go through some data,

and Jia came over for, like...

I don't know, ten seconds.

I don't think we even spoke.

When Vincent went back to Scotland,

he changed his mind about your report.

Withdrew his endorsement.

I still don't... understand why.

The data on seabed mining is good.

See, my colleague in Scotland says different.

She followed up on what you told me

about your predecessor - Siobhan Wilkinson

was forced to resign.

That was for incompetence.

No.

Nah, see, I know it wasn't.

Dr Wilkinson...

she didn't see the big picture...

but when you live on Svalbard, you can't miss it.

This place, it's like...

having a front-row seat to climate change.

Every year, it gets worse - and seabed mining,

however damaging it might be,

was our only chance of stopping it.

So, what, you did what she wouldn't?

You doctored the report.

I omitted some of the outlying data.

I did a little bad to do a lot of good.

And Vincent found out?

From Jia?

Is that what she discovered?

No. Jia's work didn't have anything to do with seabed mining.

OK, so, what was she working on?

I don't know. It was something secret.

She kept her cyanobacteria samples in a separate cryo freezer,

her research locked in her room.

It was all off the books.

Why?

There were rumours her funding was from the Chinese military.

Why would the Chinese military fund a microbiologist?

Could they weaponise her research?

There are thousands of undiscovered cyanobacteria.

If you can start isolating them,

the applications are potentially limitless.

Svalbard is one of the best places to study them,

which is why it's so hard to get a secondment here.

In fact, one of my students called me in tears -

they were due to catch the red-eye but their flight was cancelled

on the day that body was found in Baltegrad,

and the director closed the airspace.

The red-eye? Do you remember what time that was?

5:00, 5:30. Why?

Does that keep a log of who comes in and out?

Yes. Thanks.

It has a computer inside that has all the data.

Do you have access to that information?

No, I'll go and get Garcia.

Great.

Kirsten, why are you not in your room?

I need to talk to you. It's important.

OK.

So, what's this about?

How did you know Hodge's body was in Baltegrad, again?

I told you.

I got a call from the mayor's office.

You closed the airspace at five.

If the Russians only found the body after six,

how did you know about it an hour earlier?

Kirsten, I... I really don't have time for this.

What aren't you telling me?

It's... It's classified.

Why? What are you protecting?

It's not what, it's... who.

The morning Hodge's body was found...

I received this text message.

In Russian, obviously.

It means "British man dead in Baltegrad."

And this is how you knew about Hodge?

Yes. Why didn't you tell anyone?

If the Russian authorities knew that one of their own was leaking

information to me, they would have found them and killed them.

You should have told me you got this, Director.

As you should have told me you brought Polina here.

We both tried to protect someone.

Do you know who sent the text?

I assumed Polina.

She didn't mention anything when she tried to defect.

And you've called it?

Yes.

It goes straight to voicemail.

But how do you know the text came from Baltegrad?

I... assumed.

No, we need to trace where it came from.

Just need you to look at the computer.

Don't touch anything else, OK?

Yeah.

Yeah.

You were looking for a struggle.

Did forensics find anything?

They dusted for prints,

but could only rule out eight of the hub's 97 residents.

Could anyone come in through here?

No.

That only opens from this side, so...

I mean, they would've needed a crowbar to get in.

What about here?

No. That's a dead end.

It's the sample store. Show us, please.

All right, guys.

Oh, I... Sorry, we keep it at minus 25,

so as to keep the ice core samples intact.

What do you do with them?

Er... Anything.

If you can name it, ice core samples can help you study it.

Climatology, zoology, anemology.

I'm pretty sure I made the last one up, but you get the idea.

OK, thank you.

If I want to get cold, we will go outside. OK.

The last one, please lock the door behind you.

Wha...

Er, so what time was that woman found?

16:12.

OK.

OK, so...

Let's see, six minutes before that, the connection to the door was lost.

Like I said.

Polina kicked it in.

Except, there's another entry just before that.

Is that Jia?

Can you print that out?

But go back a week. Sure.

Kirsten did say she was hiding out in the hub.

Yeah, but we found the evidence she was gone

by the time Polina got here.

She might have come back.

Or someone else had her pass.

Chen, Jia's colleague,

did take Jia's belongings after she disappeared.

Let's go talk to him.

If you have the map,

we can triangulate where the phone was

when the message to you, Director, was sent, by using the cell towers.

At what time did you receive it?

Er, 4:53am.

Are you ready to receive the co-ordinates?

Er, yes.

78.47 latitude.

Yeah.

78.40...

Yeah... by 15.31...

Yeah.

And 78.40 by 14.44.

OK.

It won't give you the exact location,

but where those circles intersect is where the message was sent from.

And you're sure this is right?

Without a doubt.

But that means...

the text came from inside the hub.

It wasn't from a Russian in Baltegrad.

It was somebody using a Russian phone.

Someone who...

who must have known Hodge was dead and where his body was dumped.

His killer.

From the logs,

it looks like Shen Jia was practically living in that lab.

Svalbard attracts a certain...

obsessive type.

Now, Chen does not like talking to police.

I doubt the three of us will change that.

Hi, Chen.

Can we come in for a chat?

Er, we can talk here.

When Jia disappeared, you cleared her room, right?

Yeah.

So, you took all her papers and files?

Was her ID in there?

No.

Can we check?

Do you have a warrant?

We can get one.

Then get one.

Shen Jia's research belongs to the CCP,

and I'm under orders to keep it secure.

Why? What was she working on?

Chief. Just the man who... Ikke na.

What's going on? Kirsten?

Why isn't DI Longacre in her room, Director?

Because she's under my supervision.

I'm afraid you will have to wait here, Colonel.

Olsdatter.

So, whoever killed Hodge, text you?

From a Russian number inside the hub.

Someone's been manipulating this from the start.

Texting him about Hodge's body,

leaking Jia's extraction to the Russians...

The only men who knew about Jia's extraction

were the ones who were involved. Yeah, exactly.

The British Special Forces.

We'll start with Cunningham.

What's going on? Stay where you are.

Can this not wait? No. It can't.

Oi, look, if you tell me what you're looking for, then maybe I can...

What? Lie to me again?

Is this about the woman that was killed?

If it is, it wasn't any of us.

For a start, I was with her when it happened.

Pickford was in the cafeteria, he's got plenty of witnesses,

Anderson wasn't even in the hub.

You can check all this.

Amy.

Look at this.

This is Hodge's bed, right?

Yes, we bunked together.

Did you know about this?

No Russian burner, though.

What are those?

They're, er... They're tactical maps.

Records of our unit's movements.

Dan shouldn't have kept these. Could be yours.

No, look at the dates.

I wasn't even on Svalbard then.

These all match Hodge's deployments.

Then maybe he was planning on sharing them with someone.

The Russians.

We need to speak to Fyodor.

How did Russia know Jia was being extracted that night?

Well, what... What is this?

Just answer the question, Colonel.

Well, I can't.

Cos I was not told.

Only that the FSB found out it was happening

and ordered Korotayev to stop it.

It was Hodge that told the FSB,

because he was the Russian spy, wasn't he?

This is proof that he was keeping records of his unit's movements,

so that he could share them.

But Hodge was already dead when Polina defected.

He can't have told Korotayev she was here.

Someone else must have sent that text from the Russian phone.

So, who did?

You were the only person who knew that Polina was here,

and there was no sign of forced entry into your room,

meaning that she chose to head to the lab.

Her fingerprints were the only ones that were on that knife.

She didn't come here to defect, did she?

Nobody needed to tell Korotayev she was here.

So, how did he know?

You sent Polina here!

Were you going to tell us?

Polina never wanted asylum.

She just wanted to get inside the hub.

What was she?

FSB?

Polina Kurkova worked in administrative...

Enough with the lies, Yakov.

You sent her in here -

but when it went wrong, and she died, you blamed me to cover it up.

You engineered this whole situation.

You've gone too far this time.

And what about you, Director?

What?

Covering for the British soldiers?

Knowing about Hodge's death before we told you.

Your predecessor, at least...

Power cut.

They've not moved.

If they do, we need to be ready.

That's not right.

The power should be back by now.

My phone's got no signal. Yeah.

Neither does mine.

Without power, the cell tower will be down.

Did you do this? No, Director, this is not us.

Let's just fix it, all right?

I think it's best you leave until this is fixed.

Nyet.

Evgeni.

What did he say?

What's going on?

Hey.

We're on!

Stay where you are.

Drop it! Drop it!

Hey! Hey, drop the weapons!

This was never about finding Polina's killer.

You just wanted another excuse to get inside the hub.

Watch them!

Sjef?

This is not a fight you can win.

Anderson, sit-rep.

They're taking the southern service corridor.

They're headed towards the main lab.

Anderson, meet us at corridor B.

Copy that.

They're inside the building.

I know - they'll be heading to the lab.

Helvete. If they start firing...

I know. I'm going to try and stop them.

Everyone needs to gather in the cafeteria.

Come on!

To the cafeteria, you know the drill. Get out!

Everyone, yes! Yes! Yes! Yes!

Come on. Come on! Hurry up!

Get down to the cafeteria now, please.

Thank you. To the cafeteria, come on.

Quickly, this way.

To the cafeteria, come on. Go, go, go, go...

Evgeni?

You need to get those men out of here.

We've had intel on Jia's discovery -

and it's dangerous. Do it now.

Director!

Director, the Russians are after what Jia discovered.

Fine. Then everyone is safe in here.

She was working with cyanobacteria.

Her research was being funded by the Chinese military.

What if Jia discovered some sort of bioweapon?

What if that's what everyone's been after?

Sir, bad news.

Someone's taken the backup generator offline.

What will that do to the labs?

Samples will start to defrost, some will become airborne...

And what if some of them were dangerous?

No-one should be in the labs right now.

Right. With me.

DCI Silva, don't shoot!

You need to get out of here.

If they're already in there, then you have to fall back.

Anderson.

Stay with me.

Clear.

Anderson, secure the door.

Weapons down!

Stay back, or we will shoot!

Stay back!

Amy!

Unarmed! Police unarmed!

Amy, everyone needs to get out of there.

How do we contain it?

Evacuate the building.

Decontaminate second.

I need to put on a Hazmat suit and get in there!

Sergei. Dimitri. Stay where you are!

You are outnumbered.

You shoot, you die.

We think Jia discovered a new type of biological weapon.

The samples could become airborne -

and you're all risking exposure being in there.

Garcia needs to come in.

Anyone entering will be shot.

We are not leaving without Jia's discovery.

Then you are not leaving.

Jia wouldn't have left without it, either.

What do you mean by that?

The thing you're looking for is already gone.

Jia took it.

She would never have left it, it was too important to her.

How can you be sure?

I have... I have records of the lab entry log...

Hands! Hands! Hands! Keep your hands up!

Yeah, yeah. So, let me show you.

Amy, no!

It's the only way to stop this.

Not armed. Not a threat. Let me show you.

Listen whatever you do, do not touch any of the samples.

Oh, God...

It's gloves...

Open it.

Slowly.

Empty.

Where is it? Where is Shen Jia's discovery?

We don't have it.

Of course you do. That is why you cut the power.

That wasn't us.

No. We thought that was you.

If they're telling the truth,

then whoever cut the power did it for a reason.

What would usually happen?

Nothing that didn't. Yeah.

Any emergency that isn't a fire, everyone goes to the cafeteria.

So, someone wanted everyone out of their rooms.

Oh, my God.

It's too late.

It's done.

We've read you your rights.

Are you certain you don't want your solicitor on speaker phone?

I'm sure.

OK.

It was you who cut the power, wasn't it?

I had to.

Because you knew what would happen.

Knew everybody would be evacuated to the cafeteria.

Including Chen.

It worked even better than I thought, thanks to the Russians.

After what happened to Polina, Chen was never leaving that room.

I had to force him out.

Why? Just so that you could destroy Jia's research?

Is that what you were trying to do in the lab?

I found Jia's pass when she first disappeared.

I used it to cover my tracks when I went inside.

But you didn't destroy Jia's discovery?

It was already gone when I got there.

Jia took it on the night of the extraction.

I just focused on destroying the rest of her research.

But then Polina broke in.

And you killed her?

I didn't mean to.

What happened?

She screamed at me to give her the door code for the sample store,

and just attacked.

I tried to run but she threw me to the ground,

and took out this knife, and...

Well, you know the rest.

I was just trying to protect myself.

But if it was self-defence

then why did you let DI Longacre take the blame?

A little bad for a lot of good, right?

I was going to come forward...

but I had to make sure that all of Jia's research was gone first.

I had to get into Chen's room.

You did all this just to stop Jia's discovery

getting into the wrong hands?

No, to stop it getting into anyone's hands.

It's too dangerous.

Is that why you killed Daniel Hodge?

No, I had nothing to do with that.

I didn't want anyone to die.

That's why I couldn't let anyone get Jia's research.

No matter what it cost me.

We've arrested and charged someone with Polina's death.

You mean murder.

She's claiming it was self-defence.

And she has a pretty strong case, considering Polina was FSB.

When can I interview her?

You'll have to wait.

That is not what we agreed.

But it is what I have decided.

What happened last night, what nearly happened,

it can never get out.

Not even to our superiors.

Of course not.

Lorna didn't kill Hodge.

That means I'm going to have to re-examine his body,

and interview any witnesses that aren't FSB.

You won't be doing any of this, DI Longacre.

Your co-operation is required.

We will co-operate with the investigation.

Just not with her.

Kirsten, I think we should... That's not up to you.

You are right.

This comes from your government.

What?

Why else would they send another police officer,

if it was not to replace you?

It wasn't my decision.

But you went along with it.

I had to. No, you didn't.

After what happened with Polina,

the Russians were never going to let you stay,

so Sir Ian had to appease them.

But you could've told me.

I was trying to protect you.

By taking my job? It's not like that.

It's exactly like that.

Is this because you don't think I'm up to it?

No, of course not!

I just didn't want to see you get hurt again.

This isn't about that.

No? Well, why don't you tell me what is it about?

I shouldn't have to, Amy.

OK.

Look, I've got to update Sir Ian, so...

we'll talk about this when I get home.

I promise.

Just know that I love you.

Even when I'm not very good at it sometimes.

Director!

Kirsten. Come to say goodbye?

I need to speak to Lorna.

Well, I'm afraid she's being held at the station.

It's important. Please.

She's lying.

About what happened to Polina, or...? No, no.

About WHY it happened.

You can have five minutes.

Any longer and we'll both be in trouble.

Thank you.

Apparently, I'm stuck in here

until three different embassies can agree what to do with me.

Still, it could be worse.

Not sure how, but...

Polina wasn't looking for what Jia discovered, was she?

No, she was after something else.

Someone else.

She had your photo in her coat, and she went to that lab,

because that's where you were.

Because you know where Jia is, don't you?

We need to talk.

Follow me.

Jia didn't want Russia, China - anyone -

to be able to recreate what she found.

Is that why you destroyed her research?

She asked me to.

She came to me for help,

once she realised what she'd created.

After what happened to Vincent...

I felt I owed her.

Where is she hiding?

I'm not going to tell you.

She's in danger, Lorna.

Now her research has gone,

she's the only one who can recreate her discovery.

Everyone will be trying to find her -

and they will.

You need to make sure somebody you trust gets to her first.

So, you told me the Russian phone that Hodge was using

to contact the FSB has gone missing, right?

We think someone's taken it.

Yeah. Hodge's killer.

The FSB, they load all their phones with malware

so they can remotely wipe the data, in case they're stolen.

But they can use that same malware to turn the phone back on.

So you can call it?

Yeah. I already have.

Henrik?

He must have found out Hodge was a spy and killed him for it.

Lorna said we'd find Jia a few miles north.

We're close.

Lead the way.