"My boss." "Samuel Walker." "Unidentified government agents meeting in Switzerland." "Talk of a new world order." "Harry Pearce has come to me asking for help." "Some talk of a global conspiracy." "You don't suspect Lucas?" "I suspect everyone." "I have something for you." "A covert meeting in Basel, Switzerland." "Be careful who you trust." "I've asked Swiss immigration to send photographs of all passengers flying into Basel that week." "I should get the information tonight." "If you want me to leave..." "Stay." "I love you so much." "OK?" "I can't stop thinking about Sam's girls." "They're too young to lose a father." "Did they have any idea, about his illness?" "Walker was a fighter, wasn't he?" "Fought the odds every day of his life." "It seems odd that he'd wave the white flag to cancer." "He didn't." "Sam wasn't sick." "We had him under surveillance for months." "Ten days ago, we found the smoking gun, an account in the Turks and Caicos Islands." "Eight deposits, over 50 grand at a time." "Who from?" "The Chinese." "Dear God." "I was supposed to confront him." "Plan was a signed confession for the archives, followed by a dignified resignation." "So did he sign?" "No, I never got that far." "An hour after I called to meet, he was dead." "He must have known we were on to him." "But it could have been handled better." "I should have handled it." "Listen, Walker made his own choices." "He knew the risks." "Then what the hell am I doing here?" "Sorry." "This programme contains some violent scenes" "Yes!" "Whoo!" "Whoo!" "Champ, champ, champ!" "Home run." "Oh!" "Home run." "Next time, you're dead." "Any time, Mike." "You guys need the bathroom?" "No." "Double pistachio then, all round." "OK." "The American Embassy is reeling today after a memorial service for the respected diplomat Samuel Walker, whose career spanned more than three decades." "Officials at the American embassy paid tribute to an outstanding public servant." "It's understood Mr Walker left a suicide note referring to a recently diagnosed cancer." "40 minutes before Samuel Walker was found, he phoned me to arrange to meet." "Needless to say, he never made it." "Coincidence?" "Hardly." "We're leaving." "What?" "We haven't had our ice creams!" "Go to the car, right now." "Hey!" "What's going on?" "Get in!" "TYRES SCREECH" "CAR HORN BEEPS" "Did Walker say what he wanted?" "Just that it was about Basel and went to the heart of the intelligence services." "Less than an hour later he was dead." "Somebody wanted him silenced, Ruth." "HE COUGHS" "Dad?" "Dad, are you OK?" "Dad, what's wrong?" "Dad, what's going on?" "Dad!" "Dad!" "DOOR BUZZES" "Got any coffee?" "Still can't sleep?" "What have you got?" "Do you recognise this guy?" "Should I?" "Michael Braydon, comms expert, ex-Seals, ex-Special Services and most recently on a covert joint op with your friends at GCHQ." "Busy bee." "Not any more." "He had a heart attack yesterday after playing softball with his kids." "I'm sorry." "The Agency Fed-Exed his blood samples back to the States." "Standard practice in unexpected deaths." "The results came back a half hour ago." "Turns out he had traces of oxo-metacaline in his blood stream." "Now you know all about that one, don't you, Lucas?" "MI6's drug of choice when it comes to promoting unhealthy hearts." "Sarah, you can't seriously think it was Six..." "They found a puncture mark on Braydon's left thigh." "It was murder, no question." "One of our guys, in your city, with MI6's fingerprints all over it." "Six aren't the only people to use oxo-metacaline." "Not any more." "Well, I sincerely hope not." "Why would they want him dead anyway?" "Not everyone was a fan." "Braydon's remit was to look at security breaches." "God knows what he found." "All right." "Leave it with me." "Thanks." "Now, how about some breakfast?" "I'm not hungry." "Sarah, I know how close you were to..." "I'm fine, OK?" "Just..." "I'm sorry." "Just give me time." "DOOR CLOSES" "'Is your Walker cover holding?" "'" "Yes, so far. 'Keep it that way." "'We've got a long way to go with this." "No screw ups, OK?" "'" "The American Ambassador's not happy, Harry, and I can't say I blame him." "Two officers in less than a week." "What the hell is going on?" "The honest answer?" "We don't know." "So far we've made no connection between Walker and Braydon other than they both worked for the CIA." "There is one other possibility." "Shortly before he was killed, Walker called me." "Said he had more on the Basel meeting." "Did he give specifics?" "Unfortunately not." "You have to find out, Harry." "If this is connected to Basel, I want it top priority." "Have you heard any more from your contact?" "No, he was terrified about telling me what he did." "Brief your team now." "If these two deaths have anything to do with that meeting, we may already be too late." "The Home Secretary has received a warning from a highly-placed source about a meeting in Basel." "Turns out officers from Western and Chinese intelligence attended, all off the record, all travelling under assumed names." "Their agenda, to re-align the geopolitical map once and for all." "So Darshavin was right?" "Why wasn't I briefed about this?" "Why did you keep it to yourself?" "There was nothing substantive, it was all rumour." "That's changed with Walker's death." "We need to find out what it was he was about to tell me." "And why it was worth killing for... twice." "What do we know about the building where Walker died?" "It was being used by the CIA as an observation post." "When the Met attended, they found all exits and entrances secure." "They impounded Walker's body so fast, the Home Office pathologist was still in his PJs." "CCTV?" "All feeds conveniently disabled." "Can we get feed from the vicinity?" "Shouldn't be a problem." "Traffic in and out, one mile radius, two hour window." "What about Braydon?" "He was working with GCHQ on a suspected security breach and the CIA are pointing the finger at us." "Six wouldn't use oxo-metacaline, not now it can be traced." "Assuming it was ever actually in his body." "You think Sarah's lying?" "It wouldn't be the first time the CIA have falsified blood tests." "Sarah could just have been the messenger." "In which case this whole thing could go a whole lot higher, and deeper." "PHONE RINGS" "Yes?" "'Still saving the free world?" "'" "Who is this?" "'Coleville.'" "Jack Coleville." "My God." "How are you?" "I have something I think you'll find interesting." "'The old place?" "Half an hour.' Jack, I..." "Thanks for coming, Ros." "You knew I'd come, Jack." "Are you OK?" "Just tired." "Enjoying retirement?" "No." "You still love the job?" "No regrets?" "Nothing the occasional vodka can't sort." "I've missed you, Ros." "Did I do right by you?" "Getting you involved?" "I worry about that sometimes." "No, I wouldn't have it any other way." "You mean that?" "No husband?" "Family?" "You said you had something for me?" "Always the professional." "You know how it is, Jack." "You're not serious?" "Your memoirs?" "Just the first few chapters." "Why?" "When one gets to a certain age, one thinks of posterity." "You know the scrutiny committee will never allow this through?" "Plenty of foreign publishers out there." "Yeah." "Just don't expect your driving licence to work, or your passport, or your credit card." "You know the Service, Jack, they don't like bright lights in dark places." "I need to get them published, Ros." "They're all I have left." "I dabbled in some investments, got out of my depth." "I've been very foolish." "But this..." "My past is the only asset they couldn't take." "Please." "Read them." "Then give me a call and tell me what I can get away with." "OK." "I'm flattered." "I knew you'd help." "MOBILE PHONE BEEPS" "Sorry." "Of course, of course." "Oh, you may find chapter three of particular interest." "It's all about Harry... and Gibraltar." "Good to see you, Jack." "Her story adds up." "Sarah phoned Walker to arrange a meeting, he got scared, realised the game was up." "Why didn't she tell us earlier?" "No-one likes washing their dirty linen in public." "Walker was very dirty." "For which we only have Sarah's word." "Sorry." "I suppose what it comes down to is whether we think Walker was the type." "You knew him, Harry." "Walker was a political operator, but he's also an old-fashioned patriot, with an old-fashioned sense of duty." "I can't see him selling out to the Chinese." "If the suicide's a smokescreen, it brings Braydon back into the frame." "If Braydon had found a serious lapse of security, the first person he'd tell would be Walker." "He'd take a steer from him before sharing anything with GCHQ." "Braydon gives intel to Walker, Walker contacts Harry." "And someone feels so threatened they give him the push, literally." "We need to focus on the big question." "How deep inside the CIA does this go?" "We need to find out what went on inside that building." "'The swipe reader is straight ahead.'" "Got a package for you, mate." "Place is closed." "Can you sign for it?" "No." "No packages." "Got to deliver it, mate." "Like I said..." "Yeah, yeah, I get the message." "Just gotta make a call." "Mel, I'm at the Gordon Street drop off." "I've got a jobsworth who won't sign." "Contact made." "Starting download." "Dispatch wants to talk to you." "This is City Fast Couriers, you got a problem with the package we are trying to deliver to you?" "I'm not authorised to take any packages." "What none at all?" "No packages?" "Not a single package?" "None at all." "What am I meant to do with it, I don't want to bring it back here." "It's not a discussion, OK?" "No packages, period." "You're not being very helpful." "It's bloody rude." "All I want to do is deliver a package." "That language is not necessary, ma'am, you have a good day." "Yeah, you too." "Yeah, what do you want me to do?" "Come on." "80%." "Er, 20 minutes?" "Traffic's not too bad today." "Transfer complete." "Bring her home." "On my way." "Thanks a lot, mate." "Really helpful." "I pulled details of Walker's mobile calls 72 hours before he died." "It's nothing out of the ordinary." "His family, the office, one to his bank, pretty much what you'd expect." "Maybe even too much what you'd expect." "A dummy phone?" "His records were surprisingly easy to access." "Any trace of any other mobiles he may have used?" "Not that I could find." "And he chose to use a payphone to call you, which suggests he didn't trust his mobile." "So maybe it was his real phone." "Cross reference with numbers he called, see how far back we can trace it." "Your message said you had something?" "More what we haven't got." "The package at the CIA did the trick..." "We downloaded data from the card swipe for the last 14 days, then bracketed either side of Walker's death." "Nobody in, nobody out." "So no-one was with him." "He did commit suicide." "He wasn't there either." "According to the database, no-one went in or out, not even Walker himself." "We know Walker called Harry from a payphone near the Hammersmith flyover at 6.43." "But after that, there's no record of him swiping back in." "Which means he wasn't in the building where he killed himself." "Kind of existential, isn't it?" "So what's the deal?" "Somebody wiped the data." "See all those zeros?" "That's the intel we wanted." "There's nothing in a 20-minute window either side of Walker's death." "Professional job?" "It looks like it was done in a hurry." "Harry, I saw Jack Coleville this morning." "THE Jack Coleville?" "How is he?" "He didn't look well." "Oh, I'm sorry to hear that." "Never understood why Jack opted out." "We all assumed he'd end up running the Service." "He told me to ask you about Gibraltar." "Gibraltar?" "Never been there." "Really?" "Really." "Give him my best if you see him again." "MOBILE PHONE RINGS" "Yep?" "What do you think, literary masterpiece?" "Shoe-in for the Booker?" "Jack, I am so sorry, I've only had a chance just to flick through it." "Bit of a shocker about Gibraltar, don't you think?" "Should get some media interest." "You got it wrong, Jack." "Harry was never there." "You mean when you asked him, he denied it." "Yes." "Remember interrogation training?" "Of course." "My little aphorism." ""There is no art to find the mind's construction in the face." You know how the rest goes." ""He was a gentleman on whom I built an absolute trust." Macbeth." "I was there, Ros." "I saw what he did with my own eyes." "Check the records." "Harry Pearce, Gibraltar, 1983." "You'll see." "That's three dead officers in a week and the latest is one of ours." "Alex Winchcombe, born 1957, BA and PhD in Modern Languages." "MoD for eight years, three seconded to the US Army in the early '90s." "Joined us from GCHQ in '95, as an expert in Balkan dialects." "He's been on the fourth floor ever since." "Apparently, he's one of only two experts in his field." "Was." "How did the police know he was one of ours?" "Someone left a helpful note." "It's a full CV." "Complete with details of every operation he worked on." "Half this stuff's classified." "He was in Gibraltar?" "Yes, he was stationed there for a couple of years. '83 to '85." "Walker, Braydon, Winchcombe." "Is there a connection?" "Get a full breakdown of all Winchcombe's postings and liaison officers, including the Americans." "Specifically Samuel Walker and Michael Braydon." "Ruth, dig up the personal - relationships, finance, recent trips abroad, usual stuff." "And get a printout of all Winchcombe's calls over the last couple of months." "Whoever compiled this had full security clearance." "If they can get this level of detail, what else have they got access to?" "Just about every asset we have." "Contact all serving officers, increase alert levels across the board." "That includes us." "With this kind of access, we're all at risk." "We need to stop this before any more MI5 officers are killed." "As I thought, pure fiction." "No element of truth?" "Ros, do you really imagine I murdered an innocent civilian during interrogation?" "No." "Thank you." "So why write it?" "Jack knew it would take me about five minutes to check the system." "There were rumours after he left, of a breakdown." "He seemed perfectly rational." "And desperate for cash." "Sensational stories sell and are almost impossible to disprove." "Of course." "I'm sorry, Ros." "I know how important he was to you." "He was a fine officer." "Oh, my God." "Jack." "There must be something, Tariq." "There's something here all right." "Combo Bluetooth/Wi-Fi chip." "It intercepts local Bluetooth traffic and re-transmits it via a short-range network." "So it's data, not audio?" "Yeah." "It's designed to capture keystrokes from wireless keyboards then pass them on." "There should be a relay somewhere outside the building hooked up to a mobile." "From there you could send the information anywhere in the world." "So Coleville could have a record of every single keystroke I've made?" "Yeah." "It's a pretty neat piece of kit." "He knew I'd check his accusations against your record and once I did..." "He got a copy of your password." "What's the damage?" "Can't be sure until I run a full history check." "We know Coleville accessed all of Winchcombe's records." "But he didn't give Ros the folder until after Walker and Braydon's death, which suggests he already knew enough about them." "Why would he take out one of his own?" "He was fiercely loyal." "He lived and breathed the Service his whole life." "It just doesn't add up." "What are our options on data security?" "I can do an emergency reset." "Shut the system down, block all known passwords." "If he tries again and he's locked out, he'll vanish." "But if we don't, he can access whatever he likes." "I could set up a mirror site with a time lapse, give us a time to react if he tries again." "How long would that take?" "A bare bones copy, maybe an hour." "Do it." "How does Coleville make contact?" "Phone, never the same number twice." "We have to find him." "We have to go through everything we have on him." "If Coleville tries to access the database again, can you monitor what it is he's looking at?" "Shouldn't be a problem." "Call me the second he tries." "If he gets too close to classified files, pull the plug." "Shut him out." "Coleville's chip, is it still transmitting?" "I deactivated the battery until the mirror site's up and running." "Turn it back on." "Isn't that a bit risky?" "The Bluetooth hooks up to a mobile, right?" "Yeah." "Which then calls another mobile." "Which we can triangulate, as soon as the call goes through, and find Coleville." "Smart boy." "We've got an address for Jack." "Get on to CO19." "No, Harry, we don't know for sure." "Ros, how much more do you need?" "Let me talk to him...please." "I need to find out why he's doing this." "Take Lucas." "And, Ros, no heroics." "Yeah." "The place is empty, Lucas." "Apart from a copy of Macbeth." "Coleville's favourite play." "Claimed it told you everything you needed to know about the rise of evil." "He knew you were coming." "Yeah." "One step ahead, as ever." "HIGH-PITCHED BEEP" "PHONE RINGS" "Yes?" "'You all right?" "'" "No!" "I am not bloody all right!" "You shouldn't have broken in, Ros." "An Englishman's home and all that." "Jack." "You could have killed me." "But I didn't, did I?" "I knew you'd be fine." "No, no, you couldn't have known that." "I taught you, remember?" "I know how you think, Ros." "I know everything you're going to do before you do it." "Jack, what is this about?" "What are you trying to achieve?" "I'm glad you're safe." "Jack Coleville was one of the finest officers Six has ever had." "Specialising in covert operations in pretty much every theatre we've operated in over the last 25 years." "Smart, courageous, innovative." "The complete package." "He's also the reason I'm here." "He recruited me." "Does Coleville have any association with Walker?" "There's nothing definite." "The only thing linking our victims so far is an Operation Acorn." "A joint UK/US covert operation in the Balkans." "Shut down in the '90s." "Work on it." "Get a full list of personnel from Six." "Lucas, liaise with Sarah, see what she can give us from her end." "List of officers involved, nature of missions, any unforeseen consequences." "Coleville's accessing the database." "We've got a 20 second real time lapse." "Want me to close him down?" "We'll lose Coleville if you do." "Let him run with it." "He's downloading a file." "He's got it." "What's Roger Maynard to Coleville?" "Unless we get to him first, a dead man walking." "Find him." "Throw everything at it." "And pull Sarah Caulfield in." "We need all the help we can get." "We've got a lead on who killed Braydon." "And Walker." "So it wasn't suicide?" "It doesn't look like it." "Who is he?" "We think he's responsible for another murder, on our side." "Was I right?" "Is it Six?" "Ex." "Jack Coleville." "Coleville?" "Are you sure?" "I thought he retired years ago." "Yeah, so did we." "Lucas, is there something that I should know?" "Like is this another mega Brit screw up?" "We need to find Coleville and we'd appreciate any help you can offer." "What do you need?" "For a start, we need a trace on everyone involved in a joint UK/US operation, codenamed Acorn, '91 to '95." "Any personnel still in the UK need full protection as of now." "How much worse is this going to get?" "I don't know." "For what it's worth, we think his next target is one of our ex-officers, Roger Maynard." "Lucas." "Sam Walker was a friend." "If you find Coleville..." "You'll be the first to know." "Yeah, we just got lucky." "Get me everything you can on Roger Maynard. 'Sure." "Why?" "'" "Because Jack Coleville wants him." "And I need to get to Coleville before MI5 do." "GATE BUZZES" "Yes." "It's Maynard." "Ros." "Got him." "Where?" "Right here." "'So far Vladic is refusing to even acknowledge the International Court of Human Rights, 'but this doesn't mean he can't be convicted." "The evidence...'" "We have to get there before Coleville." "Lucas is in the field." "Get him over there now." "And contact Maynard, give him a liaison point." "Just make the call." "Would you like directions?" "No." "OK, I'm in." "On my way." "INTERVIEWER:" "What are the wider implications of this trial?" "MAYNARD:" "It could prove embarrassing to the West." "They certainly used Vladic when it suited them." "He could implicate several intelligence services, including our own." "'Maynard's still in the studio, third floor.'" "Thanks, Roger." "MOBILE PHONE VIBRATES" "Maynard." "Code 378." "Confirmed." "Exit 19." "Repeat Exit 19." "Copy." "Exit 19." "'Intercept from MI5." "Target to exit 19." "Check back route.' OK." "'Contact made." "Exit 19, north-east corner, building three, ground level.'" "LUCAS:" "Copy that." "INTERVIEWER:" "I need Maynard back here now." "LUCAS:" "Exit 19, no sign of Maynard." "TARIQ:" "He's on his way." "I'll intercept." "Roger Maynard?" "Sarah Caulfield, Section D." "I'm here to escort you to Exit 19." "This way, please." "Stop." "What?" "Change of plan." "We're to wait." "Wait?" "It's not safe to proceed." "Our instructions are to wait here." "This is crazy, we're sitting ducks!" "You'll be safe, Roger." "Stay here." "Tariq, something's wrong." "He's not here." "Make contact again." "I'm gonna go look for him." "MOBILE PHONE VIBRATES" "Maynard." "Where are you?" "Your contact is at exit 19." "I was told there was a change of plan." "Are you with Lucas North?" "DOOR OPENS" "GUN SHOT" "Hold it right there." "Don't think I'd hesitate." "Drop it." "Kick it." "Hands where I can see them." "You're making a mistake." "I doubt it." "CIA?" "Shut up." "I have no argument with you." "Nor me, you." "Unlucky, I guess." "You just happen to be my get out of jail free card." "Sarah!" "GUN SHOT" "Tariq, ambulance, we're on the third floor!" "I tried to stop him." "You're OK, Roger, you're gonna be fine." "There's an ambulance on the way." "Look at me, look at me." "Do you recognise the man who did this to you?" "His name's Jack Coleville, he was with MI6." "How do you know him, Roger?" "Look at me, stay with me." "I need to know why Coleville targeted you." "Baranova." "Mina Baranova." "Who is she?" "Is she Russian?" "Come on, Roger, fight it." "Fight it!" "Coleville got away." "'That's unfortunate, Sarah." "'You better rethink your Walker cover.'" "I'll deal with it." "I think Maynard made it up." "Nothing's coming up on Mina Baranova." "I've tried alternative spellings, Cyrillic, Arabic and Hebrew alphabets." "All drawing a blank." "I've got a Mitko Baranov." "Serbian militia." "He's at the International Court of Human Rights." "War crimes?" "As a witness." "Get a full transcript of his evidence." "Sarah Caulfield checked out Braydon's records." "He was in Bosnia in the '90s when he was with Special Services." "What are we missing?" "What's the connection?" "OK." "We know Coleville and Braydon were in Bosnia in the early '90s." "Winchcombe was an expert on Serbo-Croatian dialects, but there's no record of him having met either of them." "Which leaves Maynard, the most recent victim, he used to be MI6 station head in Belgrade, but not until 13 years later, that's long after the others left." "What about Walker?" "His only connection's through Braydon." "He was never posted to the Balkans." "He only met Braydon in Washington." "Which brings us back to Mina Baranova." "Who doesn't seem to exist." "Maynard could have got her name wrong." "Or given us a false one." "Maybe there's no pattern, maybe we just want there to be one." "We've circulated Coleville's details to every major police force - Interpol, FBI." "All serving and recently retired officers are already put on alert." "It won't be enough." "And the alternative?" "We can't pull everyone in, it'll cripple the service." "Which is what Coleville wants." "Jack Coleville is murdering our intelligence officers." "We'll have to shut the system down." "We can't allow him access to any more files." "I've got something on Mitko Baranov, he had a sister." "Mina?" "It's buried in his evidence to the International Court." "Where is she now?" "In his evidence, he says she died at the hands of Muslim extremists." "But I can't find any other reference to her." "She has no medical records, bank accounts, passport application, nothing." "It's like she never existed." "Maybe that's exactly how they want it to look." "The Shadow Protection Programme." "Created by Six during the Balkans crisis to protect sources." "Informers were offered new identities, new life abroad." "Their past lives completely obliterated." "Can we get access to those files?" "We'll have to." "Coleville was Mina Baranova's case officer." "He was running her as an informer." "She must have been compromised." "He arranged a new life for her." "Until five years ago, she was in Greece, place called Skourta." "Then?" "File closed." ""Participant Deceased."" "Who was the last officer to make an entry?" "Maynard." "Roger Maynard." "Search for Winchcombe." "He was her translator." "He's getting revenge." "Coleville's getting revenge." "It's Coleville, he's trying to access the system." "We have to let him back in." "And risk another officer's life?" "We have to, Harry." "It's the only way we can find out what he's after." "The moment I say, be ready to cut him off." "He's drilling down." "He's accessing Mina's file." "He's after someone called the signature officer." "That's the lead officer on her case." "Change the name to mine." "What?" "You've got 20 seconds, Tariq, just do it!" "Ros, it's too dangerous." "Tariq, just do it!" "He may not come after you." "This could all be for nothing." "In all other cases, he killed within hours of accessing their files." "This time it won't be any different." "Either in the street, in my flat..." "He won't wait till tomorrow." "You don't have to do this, Ros." "I know." "I mean it." "I want to, Harry." "I need to." "Approaching now." "Home sweet home." "Check." "Flat's clear." "Hope they've polished the floor." "Alpha team, stand by." "Visual on Lima One." "Alpha Four update." "Lima One, approaching property now." "MOBILE PHONE RINGS" "Get a trace of the caller." "It's not her phone." "Yes. 'Hello, Ros.'" "What the hell are you playing at, Jack?" "Where's he calling from?" "I've always respected you, Ros." "Can we meet somewhere and talk?" "I think it's a little bit late for that, don't you?" "No." "I never think it's too late to talk." "'In that case you'd better come and find me.'" "Goodbye, Ros." "I thought this place was clean?" "It was." "Well, how the hell did he get a phone in here?" "Did you get a trace?" "Not possible." "He used a Skype account registered in Croatia." "'Routed it through an off-the-shelf pay-as-you-go." "He's good.'" "'He's nearby, Harry, I can feel it.'" "Get out of there, Ros." "No." "The place has been compromised." "Get out of the building now." "Don't you think he would have known that, Harry?" "We have to see this through." "I need to talk to him." "Harry?" "Five minutes and I'm pulling you out." "Any news?" "Still no sign of him." "'Ros is on the move.'" "It's over, Jack!" "Contact made." "Stand by, everyone." "METAL CLINKING" "Ros?" "Put the gun down, Ros." "Hands where I can see them." "I'm too old for this kind of thing." "Why?" "I think you owe me more than that." "I don't know what to say, Ros." "Try the truth." "If anyone deserves the truth, it's you." "I realise that." "It's not easy." "Ros?" "I don't know myself half the time." "It's all such a mess." "GUN SHOT" "OK, move." "All units, go, go, go!" "GLASS SHATTERING" "'Lucas, I've lost Ros' comms.'" "Ros, where are you?" "Ros?" "'Ros' comms are still down, Lucas, I'm working on it.'" "Still no answer." "Keep trying her." "Lucas, I want to know the moment you see her." "Right now, Jack Coleville is capable of anything." "She could be anywhere." "'Keep looking, Lucas.'" "DISTANT BANG" "GUN CLICKS" "Just give me the gun, Ros." "Now just keep going." "Don't look back." "LIGHT SWITCH CLICKS" "Thinking of calling the cavalry?" "I wouldn't bother." "No-one can reach us here." "Why, Jack?" "Why did you do it?" "Someone had to pay." "For what?" "Mina." "Do you remember her?" "Mina Baranova." "You signed her death warrant." "I don't know what you're talking about." "Please." "When you wanted to turn Mitko Baranov, he had a price - the whereabouts of his sister, the "informer"." "And you gave it to him, without blinking an eyelid." "What was she to you, Jack?" "Everything." "You were in love with her?" "Not very professional, was it?" "But we were careful." "And it worked." "Until Braydon wanted some scrap of information from her shit of a brother." "So he told him that his sister was seeing a British intelligence officer, purely for operational reasons, you understand." "But she got a new identity." "Sure." "New name, new papers, different country." "Even I didn't know where she was." "But it was the price for her safety." "We would be apart, but she would be safe, forever." "That was the promise." "And you broke it." "There was a war on, Jack." "Not when they caught up with Mitko." "It was all over then." "Do you know what he did?" "He burnt a lorry-load of Muslims to death." "They wanted him on trial for war crimes." "And then some smart young officer in London realised that maybe there are bigger fish to fry, maybe Mitko could be persuaded to testify." "Mina was Mitko's price." "But of course a decision like that had to be referred up." "Someone in London had to sign the death warrant." "Yes." "It didn't take them long to find Mina." "A little help from the Belgrade office and Mitko was on his way." "Do you want to see what your signature did, Ros?" "He didn't kill her immediately, as you can see." "Reap as you sow, Ros, reap as you sow." "Tell me, did you know about Mina and me and just decide to do it anyway?" "Or was it just another name, another anonymous victim, signed to oblivion from your air-conditioned office?" "I didn't sign anything." "Please, not the denial." "I expected more of you, really." "When we found the chip, we inserted my name on the database." "You have the wrong person, Jack." "That's not possible." "Who did it?" "Who signed the authorisation?" "Does it make a difference who did it?" "It makes a difference to me!" "I don't know who signed it." "The officer who happened to be on duty on that desk that day." "It could've been me or anyone, even you." "No, no..." "We'd have all done the same." "No, no, no, no." "It was the right thing to do." "The intelligence that Mitko gave was invaluable." "The information... put away not only the guilty, but it saved lives, Jack." "Hundreds of lives." "And that makes it OK to sacrifice Mina?" "Yes." "Yes, it does." "You want revenge?" "You go ahead and take it." "Maybe I deserve it, if not for this then for the other decisions" "I've made where innocent people have got hurt." "That's what the job's about, Jack." "Don't make a decision you can't live with." "That's what you taught me." "There has to be a reckoning." "Goodbye, Ros." "There's something you need to know, Lucas." "You shouldn't be here." "Why not?" "Go home." "Get some rest." "That's the last place I want to be." "What's up?" "Ruth's been going through Walker's phone records." "Erm, I wasn't getting anything useful." "So I requested records from the nearest relay tower to the building where Walker died." "I got a full list of mobile phones active in the same cell around the time of his death." "And?" "One of them was Sarah Caulfield's." "She was in the building where Walker died... when he died." "Are you sure about this?" "Sarah was no more than five metres away when he fell." "Lucas, she may not be responsible." "There could be any number of reasons why she was there." "There's only one way to find out for sure." "I think I'm beginning to get the hang of the special relationship." "Yeah, I'd say you were getting there." "I'm sorry I've been so... ..you know." "Walker's death... threw me." "I understand." "Do you?" "It can't have been easy for you." "No." "Being close to someone, finding out they're not who you thought they were." "It's painful." "I'm just glad you got the guy who killed him." "We didn't." "Coleville didn't kill Walker." "He told Ros before he died." "It was my fault, then." "When I called Sam to meet..." "he fobbed me off, told me he'd come by the office later." "I just stayed home all night." "He must have known we were on to him, that's why he jumped." "I should've insisted, I should've gone to see him right then." "I could have stopped him." "Maybe if I...had been there, he'd still be alive." "It's OK." "It's over now." "We can't change the past." "'You're sure about this?" "' She lied, plain and simple." "Sarah killed Walker." "Yeah." "Yeah, I think she did." "We've run out of other explanations." "OK, well then I suppose the question is, was she working for the Agency or had she gone freelance?" "I really don't know." "'Then I suggest we find out.'" "Why did you kill your boss?" "We know you threw him from the seventh floor balcony." "The country's on the brink." "We've borrowed, we've issued gilts." "The UK is bankrupt until 4.25 Saturday morning." "So we need the bank's money." "What I have is clear evidence of tax evasion in the billions!" "What do you think they're going to want to do to you, when they discover that you have been recording their names?" "I'm going to do a deal." "They're not!" "They're not going to let you walk!" "GUNFIRE" "This is bad, Lucas." "These guys are not going to stop." "My life is over now." "Baisley!" "Duck!"