"Casper to Hermes, are you receiving me?" "Over." "This is Casper calling Hermes." "Are you receiving me?" "Over." "When The Hermes expedition was lost, all of us thought that was it." "Then, only six short months later, and here we are ready to follow where they went." "The Hermes disaster remains unexplained." "You will resume your mission as soon as we have recovered the black box." "You're taking us into the hydrothermal vent field?" "OK, Alaska, this is the last you'll see of us for two weeks." "You don't know anything else that might be down there?" "No, Frances." "What was that?" "!" "It is man-made." "It's a structure." "Jesus!" "On my screen." "700 metres and closing." "It's huge!" "What is that thing out there?" "!" "Get off her Raymond!" "Raymond, leave her alone." "She's dead." "Oh, my God." "Did you catch anything?" "No." "This came for you." "Hey, sweetheart." "I'm really sorry, but I've got to keep this really quiet, because everybody's sleeping up there." "Vincent is snoring his head off, Maddy's a light sleeper and Frances can clap me in irons if I wake anybody, because she's the captain." "Anyway..." "Happy birthday, sweetheart." "On the count of three." "One, two, three." "See?" "I've got my bit already." "How did you do that?" "Time travel." "Your gran's got something for you from me." "Do you?" "I certainly do." "Happy birthday, darling." "From your dad." "Bet you can't guess what it is." "It's a Papohaku Junior long-board." "That is a Papohaku Junior long-board." "Well, whatever it's called, it's an absolute bugger to wrap." "Happy birthday, sweetheart." "# Happy birthday to you" "# Happy birthday to you" "# Happy birthday, dear Scarlet" "# Happy birthday to you. #" "What's this board called again?" "Hey, sweetheart." "I'm really sorry, but I've got to keep this really quiet, because everybody's sleeping up there." "Vincent is snoring his head off, Maddy's a really light sleeper..." "Clem!" "Please let me out!" "Please, you've got to open this door." "Clem!" "Listen to me." "Clem!" "Open this door now!" "Please..." "Blood!" "Got it." "Here again." "Clem!" "I'm here." "Look." "What?" "Components melted." "All destroyed." "What the hell could have done this?" "I think that Maddy must've found out why Raymond's really here and so that's why Raymond killed her." "Vincent." "Enough." "Enough?" "I saw him murder her." "He was on top of her." "Strangling her." "We have to find out." "We need to get power back, we need to get communications up and running and we need to speak to that thing up there!" "Vince..." "I just think we should be looking harder at Raymond." "Just quickly hold, please." "And focus on why it was he killed h..." "Ahhhh, bloody hell!" "Yes!" "Some power somewhere!" "So can you fix it?" "My degree is first class from The University of Saint Petersberg in Computational Physics." "I am not a bloody electrician." "Evidently." "Again." "OK, it's not going to move, not without power." "It's OK." "Whatever it was that pulled us up on those wire hawsers, that had to have taken an incredible amount of power right?" "That's generating a huge amount of power..." "Frances, we are going to die in here." "I need to know what she said." "What who said?" "Sandra." "What did she say?" "Yeah." "Sandra?" "Yes." "It..." "I don't now, I mean, I don't remember what she said." "She said she wanted to talk to you." "I..." "Frances, come on, please?" "Please just tell me, I need to know what Sandra is thinking about us." "Samson, Maddy's dead!" "We don't have any power." "We have no idea what that thing is above us." "We could be attacked again at any moment." "If we don't get out of this place, then you're right, we are all going to die." "Everyone!" ""Fishy Freaks of the Deep"?" "It's a fanciful way of describing phenomena we cannot account for." "Cannot account for as yet." "So who's this?" "This is Doctor Christianson, an old tutor and good friend of mine from Ohio State University." "Hey, Doctor, nice to meet ya." "Very nice to meet you too, sir." "If anybody breaks the treaty, Mr Lowe can bring the full might of the United Nations upon their head." "Well..." "Listen, I'll let you get on with your little cyber chit-chat." "This isn't just a chit-chat, sir." "No?" "The acoustic anomaly which we dismissed as a shoaling organism, well, I copied the file to Doctor Christianson, who is an authority on sub-aquatic acoustic phenomena." "He doesn't accept the signal could just be fish." "And the Doctor has already come up with some fascinating hypotheses." "And it may help us locate The Orpheus inside the vent field." "That, that is very, very helpful, Doctor." "And I would be over the moon if you could shed some light on our fishy freaks." "Clem, please, I'm going to freeze in here." "I'm going to freeze to death." "Please." "I know Vincent thinks I hurt Maddy but I honestly didn't, OK?" "I was trying to help her." "Her nose and eyes were bleeding." "Whatever it was out there killed the power, killed Maddy, Clem." "Clem, God knows, God, it wasn't me!" "Clem, please." "Shut up!" "No." "Clem, it wasn't me!" "It's Clem." "Is it open?" "No, this floor's on a different circuit." "Shit!" "There's no power at all!" "They can't stay in there." "They won't last." "They're going to run out of air." "Here, hold this." "What are you doing?" "Wait." "Take..." "Lurch..." "Up." "Up." "What does he mean, what does he mean "Up"?" "We don't have enough battery power to get up to the surface." "He doesn't mean the surface." "He means up inside that thing above us." "Find a way inside." "Find a way inside, understand?" "Shit, Frances!" "No, no, no, no, he's right." "Come on!" "Clem?" "Come on!" "Clem!" "This is insane!" "We don't have a choice." "Clem." "Honestly, mate." "I'm not questioning your judgement about anything except, are you sure?" "Get inside?" "What if they can't?" "How can you be sure?" "What if we don't get power back in time?" "I don't know, then we could, er..." "We could what huh?" "Hmm?" "We could what, Vincent?" "Watch them suffocate through the window?" "Those cables that latched onto us dragged The Orpheus out from under the rock-fall." "They're attached to that thing up there!" "There has to be a way inside." "There must be." "A moon pool." "But what if it is closed now?" "Look." "I would go!" "I would take Lurch up myself!" "We need to re-route power to the camera monitor." "Sit!" "Oh, my God, this is impossible." "Are you telling me I've got a fat arse?" "Lean in to me." "OK." "Watch your head." "Let me put..." "shit, this is madness, Samson." "What if there's no way in?" "I'm just as worried, about what if there is?" "Try it." "Again." "Again." "Again!" "Got it!" "Right, find Lurch." "OK." "It's going to get very, very cold." "I know." "OK." "Battery power is at 8%." "Is that enough?" "Yeah, lithium-polymer batteries." "Best performance is slow drain." "OK." "So no heat, no lights and keep your foot off the gas." "But hey, we can cuddle." "OK." "Shit!" "Lurch isn't moving." "They're sinking." "Two passengers, negative buoyancy." "They'll sink to the bottom." "Oh, Jesus." "OK." "Sorry... cold start." "Oh, my God in heaven." "I think Raymond knows what that thing up there is." "I think he came on board under his own agenda." "All along he's been hiding what the hell he knows about what's out here." "Quiet, Vince." "Jesus Christ!" "Shit!" "Oh my God, I thought that was something going to munch us." "Not a lot of things could munch Lurch." "Look." "He's back." "Dracula." "Maddy's friend." "Maddy." "I know." "This thing is enormous." "Oh, my... hull diameter?" "Forty metres." "No, nearer sixty." "She's Russian." "Made in Russia." "How do you know that?" "Russian welding." "Russian welding is the best welding in the world." "Second World War." "Russian tanks destroy every other tank, because other tanks are welded together like a wet box of cardboard." "Russia." "Had to be." "The only ones crazy enough." "This was in Raymond's suitcase." "Look." "Is that something there?" "That's a light." "Is that on the hull?" "I don't see much light." "Do you think that could be their moon pool?" "Could be." "Oh, Jesus Christ, it could be." "You came prepared didn't you, Raymond?" "No." "You knew the Russians were down here." "No." "They destroyed The Hermes." "And they killed my wife." "You don't know that." "Clem, listen to me." "Please, this is important." "Catherine's work." "I don't think you appreciate just how much danger she was in." "There are people who would kill without a qualm to get their hands on her work, her research." "You have no idea what she was involved in." "Are you working?" "Er, no." "I'm done." "Come on, up to bed." "Jesus, look at that." "Who's in there, what are they doing here?" "You think they can see us coming?" "I don't know." "I mean, there's no sign of anything, there's no movement, there's no nothing." "OK I'm going to get us in on an angle." "Keep Lurch on a downward keel, just in case we need to bolt for it." "OK." "Where are we going to bolt to?" "I don't see any movement." "No." "They're inside!" "It's the size of an industrial hangar." "I have never seen anything like this." "You could get the whole Orpheus in there." "Where are all the crew?" "Look, look, look, look." "There, there!" "Those things!" "Look at those." "What the hell are they?" "Wellheads." "Pre-fabricated wellheads, for drilling." "That's what we saw on the seabed." "Who managed to build this thing without anybody ever knowing?" "What's that?" "Cyrillic." "Russian?" "Samson." "Hello?" "Be careful." "Oh, my God." "They need to see this." "No, no, no, don't touch him." "We don't know what killed him." "I already have." "You got him?" "Yep." "That's exactly what we saw on Maddy." "There's bleeding from the eyes, ears and nose." "You can't miss this, this is worse than Maddy." "She was only..." "I told you that I didn't hurt her." "There is something else." "Up there." "God knows what." "And there's the same down here." "Look at that man there." "Look at him!" "How could you think that I could do that to her?" "You would have lynched me." "Shame on you." "Look, that's how they pulled The Orpheus out of the smokers." "Looks like some kind of control room." "Do you think it's radiation?" "Yeah, could be." "Looks like they all died simultaneously." "This guy must have been trying to winch Orpheus up." "OK, well..." "Shall we re-start the winch?" "Safety in numbers." "We don't have any other options." "Right." "It's working." "HORN BLEEPS" "We're going up." "You knew it was something else, didn't you, Clem?" "Maddy was bleeding from the eyes and the ears exactly like that man." "You know the same thing killed Maddy, don't you, Clem?" "I mean we can all see it now." "But you knew that all already, didn't you?" "That I didn't kill her?" "Cos... you're bleeding too." "There's nothing the matter with me." "So, this, this isn't your blood?" "You're not the one leaking blood?" "It is nothing like what happened to Maddy." "Is it your nose?" "Your eyes, your ears, what?" "Maddy is lying dead on the slab." "You'll notice I'm not." ""Possibility Radiation"." "Aw, man." "How could radiation have killed Maddy on board The Orpheus?" "And if it is radiation..." "We need to get the Geiger counter to them." "Who's going to take it out?" "Whoever takes it out, I mean if it is radioactive out there..." "Might end up dead." "So you and I have no way of knowing if we've already been killed from radiation poisoning, do we?" "No." "You wouldn't feel it as it was happening though, would you?" "You wouldn't actually feel yourself heating up or anything?" "No, you don't." "You feel nothing." "So the only way we'll know is if they bring a Geiger counter out here?" "That's right." "And whoever brings it out of The Orpheus... they're going to be risking their life to find out if we're dead or not." "Well, they'll have to know one way or another." "Otherwise we're all stuck." "And that's why, it will be Clem." "He will make the decision." "Oh, Jesus Christ." "Hey." "It's OK." "Don't think about it." "There's nothing we can do." "Listen..." "I'm sorry about all the crap I said to you earlier." "What crap?" "About Sandra." "You know, asking you about her and what she knew." "Does it matter to you that much?" "She found an e-mail on your computer." "An e-mail?" "That I sent." "You?" "What did it say?" "I can't remember." "You can't remember?" "I was drunk when I wrote it." "Shit, Frances, you were drunk when you came into my room." "No, you came to my room." "You're kidding me?" "No, I'm not." "I thought we were in my room." "We were in both rooms." "Jesus Christ, what were we thinking?" "I don't know what we were thinking." "I don't know what you were thinking." "I never know what you're thinking." "I don't think you know either most of the time." "I know what you told me, though." "You said you'd always wanted me." "Since, you said since the first time you saw me." "I was so happy to hear that." "Right, we're all clear." "So it's not radiation." "What the hell is it?" "We need to split up into teams, go into this thing, find any survivors." "Clem, you need to slow down." "No, no, we need to hurry!" "Wait!" "Just wait!" "Of course there might be survivors." "There was no sign of life." "There might be survivors who need our help right now!" "Who might not be able to..." "Clem, I'm just saying, until we know exactly what killed all those people, we should stay in the immediate vicinity of the moon pool and The Orpheus." "That is not a plan, Frances." "I know it's not a plan." "We have complete computer meltdown." "We have wall to wall fried circuitry." "We have no idea what caused it." "If there are survivors, we need to contact them under our own terms." "We need to negotiate a way out of here, Clem." "Negotiate?" "What with?" "A virus, a nerve gas, a mass poisoning?" "Aliens?" "Zombies?" "Shut up now, Vincent!" "Frances is right." "We should stay here until we understand what killed these men." "And killed Maddy." "Same thing killed these men, killed Maddy." "Clem, please." "Right, right, OK." "Give me five minutes." "Where are you going?" "I want to see Maddy." "She's dead, she was 22 and I brought her down here." "I just want to say goodbye." "Clem, come, please." "These drill heads show they're equipped to go deep into the sea bed." "Have you ever seen anything like this before?" "No, I have not." "I mean, different drill heads, for different kinds of rock." "What the hell are they up to?" "We are inside the biggest deep sea installation I've ever seen." "Anyone's ever seen." "And in the ice up there, miles and miles of listening devices, acoustic monitors, sonar buoys." "I know, Frances." "Well, how can it be... this is Russian?" "Yes." "So how long has it been down here for?" "We can't tell." "And how the f..." "how has it been avoiding detection?" "I don't know!" "If no-one knows about it, what happens when they find out?" "They're drilling in an internationally protected environment." "Everything that entails." "Pollution on an industrial scale and the violation of a UN exclusion zone." "I mean, when this gets out, shit." "It's, two World Wars were started for a lot less." "I know and those responsible won't want to let it get out." "Exactly." "Which is why we have to be really careful, Clem." "You have to promise me, whatever happened out there, whoever's left, they're not going to be friendly." "Yes, you're right, Frances." "Yes, I know, I'm sorry, all right?" "I have to ask you to do an autopsy on her." "I don't ask that lightly, Samson." "I know it will be awful, emotional." "I wonder if you can... ..you can bury your emotions as deeply as is humanly possible?" "Do you think you can do that?" "Yeah, I think so." "Jesus!" "Svetlana." "You OK, Vince?" "No, no I'm not OK." "I'm completely shitting myself." "We've got no idea what killed those guys." "Killed Maddy." "Waiting in the shadows out there to kill us all." "We've got no way of fixing The Orpheus." "We've got no way of communicating with anybody up there." "When it was Raymond, at least we had him locked up in the fridge and we were all safe." "No!" "But if it wasn't him then how do we know exact..." "CLANGING" "What's that?" "Samson!" "Somebody's alive!" "Where are you going?" "Somebody's alive!" "Hey!" "Clem!" "This is insane." "Clem!" "Clem!" "Come back, are you crazy?" "Clem!" "Clem, wait, Clem!" "What's wrong with you?" "Frances said to wait." "Hey." "Someone is alive!" "OK, Clem." "We'll find them." "We'll find them." "Come on." "You're bleeding." "OK, Vincent." "I need you to do, er, an examination on Maddy." "And also, you know, on another body from the outside." "Oh, shit." "We have to do this." "You have to do this, because we have to compare them." "We have to know what killed them, we need to go in there." "We need power, we need communication." "We need to find another way to get to the surface and I want to know what has been going on." "Yep, forensic autopsy isn't strictly my area of expertise, Frances." "Well, Samson isn't here, so, you know, you're a scientist." "Yeah, but..." "Just be scientific." "When you get the other body, please stay on The Orpheus." "You stay with him." "Why?" "Because first they told me Raymond murdered Maddy and then they told me Raymond didn't murder Maddy and either way, I don't trust Raymond." "Svetlana, I know it's a stupid question but erm, you do actually speak Russian, don't you?" "Do you think I just have a zany accent for amusement?" "Just grab a torch." "I don't feel anything, just a numbness, in the face, the front." "Nothing else." "Doesn't feel like I'm going to die." "Let me take a look." "What are you looking for?" "Mydriasis." "Excessive dilation of the pupils." "And?" "No." "There's nothing." "Good." "Look!" "We're seeing similar injuries on all the bodies." "Similar to Maddy's." "Some more severe than others." "Where was Maddy when the power went down?" "She was at the end of the main corridor." "Where were you?" "CLANGING" "Come on." "Oh, God." "This is not good." "Water, inside the submarine." "No." "You want to keep it on the outside." "What is this terrible smell?" "I don't know." "Oh, God, this is bad." "Are you going to help me?" "Oi, Raymond!" "Raymond, I said are you going to help me?" "There's things I have to do." "Raymond, look." "Look at me." "Frankly, I don't care why you're really here." "Why you came along under, false... what you're bloody looking for." "I don't care!" "Right now, you have to help me." "This is a matter of urgency." "We don't find out what killed everyone on this thing then it might kill us." "Then all your, "Things you have to do," won't mean anything at all." "Help me." "Please." "Weird shit." "Look at all this." "What have they been doing?" "Weird shit." "Weird smell." "What the hell is that?" "This might be messy and upsetting, because the only thing I've ever dissected before was a small rabbit." "When?" "A-Level biology." "The central nervous system of the common or garden bunny rabbit." "Let's just get on with it." "Look." "Control room." "For what?" "For "Gluboko Skanruyouschyi Radar Vuisokoi Moschnasti"." "What does that mean?" "I don't know, this is not possible." "Control room for ultra-high energy deep skin radar." "Nobody has this." "It's just too dangerous." "We should get back to The Orpheus and see what Vince has found." "Come on!" "Hello?" "Be careful." "Can you hear me?" "Hello?" "Kakovo khrena tee eta dyelaesh?" "!" "Otstav yevo!" "Are you sure this is the way to The Orpheus?" "Yeah, pretty sure." "Mr Lowe called this?" "Either a shoaling organism or sonar anomaly." "Hmm." "It occurred to me that perhaps a similar phenomenon might have been recorded on the date that we lost The Hermes." "And?" "And I conducted a search through the archive on the servers, to see if the sonar surveillance files from six months ago showed anything." "And did they?" "The files were gone." "Gone?" "What do you mean gone?" "Deleted." "You ask Mr Lowe why the files had been deleted?" "No." "I came here to tell you." "This discolouration, Frances, that grey/black colour, can you see that?" "Yeah." "It runs all the way through the brain tissue." "Right?" "Now, all the dead guys out there." "They all look like this one, don't they?" "Yeah, to varying degrees." "So it looks like the same thing killed everybody at the same time." "Only whoever was closest got it worst." "So on The Orpheus, only Maddy got it badly." "Closest to what?" "I don't know." "Raymond, have you ever seen anything like this?" "No." "THUD" "Vikhoditye!" "He says he wants all of us out." "Stay there, Frances." "Or they'll shoot him." "Samson?" "There were 130 men on the Volos last night and after you attacked us, there's just me and him." "Scientists, engineers, officers, all hands, all around you." "Everybody is very suddenly dead." "Nuzhno rastrelit." "Mee nye mozhem riskovat." "Strelyai!" "Please, listen to me..." "You did this!" "Wait, wait, look!" "Gluboko Skanruyouschyi Radar Vuisokoi Moschnast." "We found the control room." "This is the radar it was controlling!" "that's the thing!" "That's it!" "That's what's been killing everyone!" "All the power from the nuclear reactor." "Cranked up and cranked up and then released into one burst of radar energy." "Enough energy to be able to see through miles and miles of rock." "All the way to the oil." "Samson?" "!" "Anybody?" "Anybody!" "You OK?" "Want something to eat?" "Sure." "I was just trying to get the jenny up and running." "Oh?" "Any word from The Orpheus?" "Nothing." "Not a bat squeak." "But I talked to, er, Kenny down in Svalbard." "Yeah?" "Yeah." "He said you can't expect much contact when they're down in the vent field." "Oh, OK." "They pick up anything on The Alaska?" "No." "You talked to Sturridge?" "Sure." "I was asking him about the last expedition." "Do you remember?" "How could I forget?" "This shoaling organism, showed up on the sonar the same day, same time we lost The Hermes." "Can you believe it?" "You were here, right?" "You know I was." "It's lucky I found it but, you know, they keep a backup of the data on The Alaska." "Whereas here there's no report, no back-up." "The whole day's been wiped from the record." "I mean, you know what the UN is like?" "Damage limitation." "Same as it ever was." "You see, Hatsuto, when the powers that be want to hide something they go to extraordinary lengths to keep the lid down tight." "You know?" "Yeah." "I do." "Hey, do you want me to have a look at that jenny?" "Please." "Don't go anywhere." "He will be fine." "This time was just rubber bullet." "This girl is one of your crew?" "Madelaine Gibson." "She's a Marine biologist." "His name was Dmitry Polyakov." "Industrial radiographer." "From Vorkuta, which is a shithole." "What's your name?" "Frances." "Listen, Frances." "I am Arkady." "I am a mechanic." "I fix shit." "Stas is a chef." "He cooks shit." "Believe me." "Look, you can't smoke in here." "Shto ona skazala?" "Shto zdes nelzya kurit." "We're 2,000 feet under the ice." "We have no power." "No communication." "No possible hope of rescue." "We don't know who you are... and you don't know who we are." "And maybe the whole world is about to burn." "OK." "Frances!" "Where is she now, sweetheart?" "Where's your mum now?" "I don't know." "Where do you think she is?" "Look." "Hello?" "Hello?" "Hello?" "You stay here, next to me, where I can see you." "Hello?" "Hello, is there anyone here?" "Oh, my God." "I knew Catherine was down here." "I knew I'd find her." "I knew you were down here." "We're following up Catherine Donnelley's research." "And you, Arkady?" "What exactly are you doing here?" "What was it?" "Military?" "Kremlin?" "Oil consortium?" "Oil." "Somebody up there knows that the Russians are down here drilling." "What happened to you?" "Lost the detail, I guess." "I'm keeping it safe." "Mum's stuff." "She said it was our secret." "She said it would change the world." "If temperature goes into red zone, there is nuclear chain-reaction inside the core." "One of you will go into the nuclear core." "Which one?" "You are free to choose." "Subtitles by Red Bee Media Ltd" "E-mail: subtitling@bbc.co.uk"