We start where we ended last season's finale -- Jack and Kate behind LAX, and this time we get to see the rest of it. Kate drives off, just like we saw her do in last year's finale, but Jack keeps yelling they have to go back. Kate suddenly stops and confronts Jack. She is mad at him for expecting her to care about Jeremy Bentham, the man from the obit. He was crazy, and she's shocked that Jack believed him. She's spent the last three years trying to forget all the horrible things that happened on the day they left – how dare he ask her to go back.
WHOOSH to the island as Jack and Sawyer race to the Orchid station and run into Hurley. Hurley leads them inside, where Jack comes face-to-face with Locke for the first time since the camp split in two. Locke explains that there's a Dharma station underneath the greenhouse, but Jack doesn't want to listen. He tells Sawyer and Hurley they'll go back to the helicopter and use it to get all their people off the island. But Hurley tells Jack that might not be the best idea. Keamy and the mercenary team are already on their way back to the helicopter with Ben.
On the freighter, Desmond, Michael and Jin try to figure out what to do about the bomb in the armory. Desmond knows a little about bombs from his army experience. He explains that the radio receiver is like a walkie talkie. Someone sends a signal, and the bomb is triggered remotely. But who has the trigger? Michael realizes it's Keamy. He saw him wiring the remote to his arm. Jin asks if they can turn the bomb off. Desmond says if they disconnect the battery, it triggers the bomb and it explodes. But then Michael gets an idea.
In the jungle, Keamy leads Ben back to the helicopter as Kate bursts out of the jungle. Keamy holds her at gunpoint, and Kate explains she was running away from Ben's people. Instantly, Keamy signals to his men. They take point and search the jungle. From above, an Other jumps out of a tree and garrotes one of Keamy's men! Another lassos a second merc, sending a burst of bullets from his AK-47. Keamy and Omar fire into the jungle, and the Others emerge with guns of their own, firing back. Kate tells Ben to run, and they take off. Keamy tries to shot them, but a grenade lands next to him. He kicks it over to Omar, and KA-BOOM! It explodes, killing Omar.
[break]Keamy runs off after Kate and Ben. They reach the top of an embankment when Sayid leaps out of the jungle and tackles Keamy. They tumble down to the bottom and exchange blows. Then BAM! BAM! BAM! BAM! Richard Alpert unloads four shots into Keamy. Kate cuts Ben free, and Ben asks Alpert what their arrangement was. Alpert tells him if they helped free Ben, they would let them leave the island. Ben agrees and lets Kate and Sayid take the helicopter. Kate is shocked he's letting them leave so easily, and Ben simply says that's it.
WHOOSH to the mental institution when Hurley gets a visitor. It's Walt. He tells Hurley he waited for someone to come and see him but no one did. Hurley apologizes. But Walt asks Hurley to guess who did visit him. Hurley is surprised to know he visited Walt, too. He told Walt to ask Hurley why all the Oceanic 6 are lying. Hurley tells him it's the only way to protect everyone who didn't come back.
WHOOSH to the greenhouse, where Locke asks Jack to reconsider staying on the island because he knows he's not supposed to go home. Jack mocks Locke and says right, crashing on the island was their destiny. Locke tells Jack if he leaves, it'll eat him alive until he decides to come back. Jack has had enough and starts to leave, but Locke stops him. Locke tells him they'll have to lie if they leave the island. It's the only way to protect it. Jack says it doesn't need protection. It's just an island. Locke tells him it's a place where miracles happen, but Jack doesn't believe in miracles. Locke tells Jack if he can't believe that, then wait until he sees what he's about to do.
Then Ben comes in. Jack pulls his gun on him, but Ben ignores him. Ben crosses to the planter of anthuriums, bends down and flips the hidden switch underneath. A door next to Ben slides open revealing an elevator. Ben tells Jack that Kate and Sayid are waiting at the helicopter. They better leave and get to the boat within the hour. Locke tells Jack to lie about the island. If he's half as good as he is lying to himself, then everyone will believe him. Locke and Ben get inside and descend below into the Orchid station.
[break]At the beach camp, Faraday returns for the second group to take to the freighter. Faraday tells Charlotte and Miles that they have to be on the next raft out. Miles, surprisingly, doesn't want to leave. He understands the direness of their situation but he wants to stay. Charlotte says she's going to stay for now. Faraday is worried. Charlotte tells him she's still looking for where she was born. She says good-bye and walks off. Faraday leaves with the next group.
At the freighter, Michael lugs in a canister of liquid nitrogen and explains it's to freeze the battery. If the battery is too cold to produce a chemical reaction, then the bomb can't be triggered. It'll buy them some time. Desmond starts a diagram of the wires so they can separate the trip wires. Jin says he'll help, and they start to work.
In the Orchid station, Locke asks what the station was for, and Ben gives him an orientation film to watch. On a monitor, Dr. Edgar Halliwax explains that this is station six of the Dharma Initiative. It is not a botanical research unit as indicated, and he apologizes for asking them to deceive their family and co-workers. It was done for their own security. The unique properties of the island have created a kind of Casimir effect, allowing them to conduct unique experiments in both space and time. Halliwax indicates an area known as the vault. It was built adjacent to a pocket of what they believe to be negatively charged "exotic matter." Halliwax opens the vault and puts in a rabbit. He explains that care must be taken to avoid leaving inorganic material in the vault chamber, and metallic objects must never be placed inside. In the first demonstration, they will attempt to shift the test subject 100 milliseconds ahead in four-dimensional space. For the briefest of moments, the animal will seem to disappear when in reality-- Halliwax is cut off as the tape locks up and rewinds to the beginning. Locke is alarmed to see Ben putting metal inside the vault. Locke reminds Ben that Halliwax specifically said not to put metal in there. But then they hear the elevator start back up to the greenhouse. Someone called it from up there. Ben asks if he can have his weapon back.
[break]In the freighter, Desmond is about to cut some wires he thinks will deactivate the bomb when Jin suddenly yells out for him to stop. He points out that they lead into another bundle of taped wires that lead into the plastic explosive. There are just too many wires. Michael asks if that means they can't defuse it, and Desmond says he doesn't know. He asks if there's enough liquid nitrogen left, and Michael says he's only got about a quarter of a tank. They better start getting everyone off the ship.
In the Orchid station, the elevator opens and Keamy steps out. The station is empty, but Keamy knows Ben is hiding somewhere and calls out to him, taunting him. He tells Ben he has a dead man's trigger strapped to his arm, which is a heart rate monitor connected to a radio transmitter. If his heart stops beating, it triggers the 500 pounds of C-4 in the freighter and all of Ben's friends explode. Locke steps out from his hiding place and tells Keamy that he and the people on the freighter have no conflict with him. Locke offers to talk about it, but Keamy isn't one for talking. Then BAM! Ben burst out of the locker he's hiding in, and with his telescoping baton whacks Keamy over the head multiple times. Keamy goes down, reaching for his knife. Ben grabs the knife first, and in pure, blinding rage, stabs Keamy in the chest. Ben completely snaps, and in a homicidal fury stabs Keamy again, yelling that he killed his daughter. Locke realizes what will happen and tries to pull Ben off him, but it's too late. Keamy is dying.
[break]On the island, Hurley and Sawyer arrive at the helicopter. Kate and Sayid are there, too. Even though things haven't been good between Kate and Sawyer lately, they smile at each other. Jack steps up behind Sawyer, and Kate checks to see how his sutures are doing. Lapidus starts the helicopter, everyone climbs on board, and they lift off. Nervous anticipation and excitement play on their faces. They now have hope they'll finally get off the island. But the chopper soon starts to sputter. Lapidus checks the fuel gage, and it's quickly decreasing. They look out and see a stream of gas leaking from a bullet hole. Lapidus tells them they have to set down, but Jack insists they fly to the freighter. Lapidus tells them they'll have to get rid of every ounce of extra weight, so everyone starts throwing everything out of the chopper. When there's nothing else left, Lapidus says he wishes he had an extra hundred pounds less. Sawyer looks at the others and makes a decision. He leans over to Kate, whispers something in her ear, and then kisses Kate – the kind of kiss that stops time. It's nothing short of spectacular. He breaks away and tells Kate to just do it. Then he jumps out of the chopper into the ocean below. He bops up to the surface and watches as the chopper disappears, then he starts swimming for the shore.
WHOOSH to outside the mental institute as Sayid approaches a man sitting in a car and shoots him in the chest. The man slumps over dead, and Sayid continues inside. He sneaks into Hurley's room and tells Hurley that he has to leave with him. Hurley asks why, and Sayid says Bentham is dead. [quote-left] Hurley is shocked. Sayid tells Hurley he is being watched – he just killed a man outside who has been watching Hurley for the last week. Hurley asks if they're going back, and Sayid says no, just someplace safe.
WHOOSH to the chopper. They can't find the freighter. Lapidus says they must have gotten the engines working and are moving towards the island. Then Hurley shouts out – there it is behind them. Lapidus breathes a sigh of relief and banks towards the ship.
In the Orchid, Locke tells Ben he just killed everyone on the freighter – and in brutal coldness, Ben tells Locke it's not his problem. Keamy spits out that wherever Ben goes, Widmore will find him. Ben replies not if I find him first. Then Keamy dies. The green light on the dead man's trigger goes out –
[break]And on the freighter, Jin notices the receiver light switch to red. He points it out to Michael and Desmond. Michael tells them to leave, that they have about five minutes to get everyone off the ship. Desmond takes off running and reaches the deck just as the helicopter is landing. He shouts at them to stop, that there's a bomb on board. Jack isn't sure he heard Desmond correctly. Did he say bomb? Lapidus says it doesn't matter, they have no fuel and sets the chopper down.
Sun is on the deck holding Aaron as pure chaos reigns around her. Desmond warns them they have to get off this boat right now as Jack, Lapidus and Sayid quickly try to repair the bullet holes. Sayid grabs a nozzle and starts fueling the tank. Sun heads below deck when Kate grabs her and tells her to get on the chopper with the baby. Sun tells her Jin is below and she won't leave without Jin. Kate offers to go get him, and Sun gets on the chopper.
Down below, the liquid nitrogen starts to fizz out. Michael warns Jin that he has to leave. He's a father now and he owes it to his wife. Jin thanks Michael and takes off running.
Kate starts below, but Jack stops her. She says she's not leaving Jin, but Jack says he's not leaving her. They run back to the chopper and get on. Lapidus starts the chopper. Sun is alarmed – where's Jin? [quote-right]The chopper lifts off – right as Jin runs out on the deck. Sun sees him, and yells for them to go back. Jin waves his arms trying to get their attention.
In the armory, Michael sprays the last of the liquid nitrogen on the battery. Then he hears the whispers. He spins around and sees Christian Shephard behind him. Christian tells Michael he can go now.
In the helicopter, Sun is crying and screaming for them to go back. But it's too late. KA-BOOOM!! The freighter explodes! A fireball erupts into the sky and buffets the chopper. Everyone is shocked. With tears streaming down her face, Sun cries out in anguish. She is convinced Jin is down there, but Jack tells her he's gone. Then Jack tells Lapidus to head for the island.
[break]WHOOSH to London where Sun waits for someone outside a restaurant. A group of businessmen leave, and Sun sees the one she's waiting for. It's Charles Widmore. She introduces herself, and Widmore recognizes the name. He knows her father. Sun asks if he's really going to pretend he doesn't know who she is. He does know, just like he knows that they are lying about where they were and what happened to them there. She hands him her card and tells him they have common interests. When he's ready to discuss it, he should call her. He knows they're not the only ones to leave.
WHOOSH to the Orchid station, where Ben flips a switch on the control panel and starts the vault mechanism. He tells Locke to duck, because with all the metal inside, the vault explodes. KA-BLAAM! Ben changes into a parka, telling Locke he's going somewhere cold, but Locke can't come with him. Ben explains that Jacob told Locke what to do but not how. That's because he wanted Ben to suffer the consequences: whoever moves the island can never come back. Ben tells Locke to go join Richard and the Others waiting two miles east of the Orchid. They'll be ready and willing to follow Locke's every word. Ben apologizes for making Locke's life miserable and heads into the hole blown out in the back of the vault.
At the beach camp, Juliet sits and watches the waves, drinking from a bottle of Dharma Rum. Sawyer swims to shore and ambles up casually to her. Juliet points out in the distance where the remnants of the freighter can be seen on the horizon. That was the boat. It hits Sawyer hard – he has no idea if the chopper landed before or after the explosion and if Kate is okay or not.
In the jungle at the stream, Locke finds Richard Alpert and the Others waiting. Alpert says to Locke welcome home, and Locke smiles.
[break]In the Orchid, Ben makes his way through a narrow tunnel towards an ancient ladder where the tunnel descends straight down. Ben climbs down the ladder. The lower he goes, the colder it gets. It gets so cold that the tunnel has iced over. Ben smashes through the ice and climbs down into an ancient chamber. One rung of rotten wood gives away, and Ben falls to the floor, ripping the parka and his arm. Ben gets up and looks around the iced-over chamber. Ancient symbols are etched into the walls. Along the far wall is a wooden wheel mounted horizontally. The wall around the wheel has been closed off so that only a fifth of the wheel sticks out. It has pegs every few feet with a hole in it, and all the pegs are caked with ice.
Ben walks over to it and touches it, knowing what it represents. He says out loud he hopes Jacob is happy now. Ben takes a crowbar and begins chipping away at the ice. Once he's freed enough of the wheel, he slips the crowbar into a peg slot, and forces the wheel to turn. Ben struggles with it, moving it more with each try. Soon something on the other side of the wall starts to hum, like it's idling to life. Ben continues to push, the wheel moves more, and the hum builds. A bright, white light spills through the wheel, and the whole room begins to vibrate and shake. The hum becomes piercing and the light grows brighter and brighter until Ben is enveloped in a blast of searing white light.
In the jungle, Locke and Alpert turn towards the loud, pulsating hum. The white light washes across their faces. At the beach camp, Juliet and Sawyer look inland as the light completely overcomes them. On the ocean, Faraday is halfway back to the beach with his group when they are consumed in the brightness.
In the chopper, everyone sees the white light expand across the island. It happens fast, emerging from the center of the island and spreading out very fast. It buffets and rocks the chopper, vibrating and shaking it – and suddenly it stops. The air goes calm. They blink and then seen something that is incomprehensible to them – the island has disappeared.
It's gone. Everyone is shocked and amazed, but Lapidus doesn't have time for it. The fuel tank is empty and there's no place to land. In every direction it's only water. He tells them to get their life jackets on. Sayid opens the life raft and pulls the cord, throwing it out as it inflates. The chopper begins to fall out of the sky, Lapidus tells them to hold on, and SPLASH!! It crashes into the ocean. Underwater, Jack orients himself and swims up to the surface. He sees Kate and Aaron climbing into the raft. Sayid is helping Sun up, but Lapidus is dragging over a completely inert Desmond. Jack swims over and helps push Desmond onto the raft. Jack climbs in and quickly starts CPR. As everyone begins to think Desmond has died... water suddenly spits out from his mouth! He coughs and gags. He's alive. They're all alive. But alone on the vast ocean, they are far from okay.
[break]WHOOSH to Kate at home sleeping. The phone rings, and Kate quickly answers it. No one is there... but she hears the whispers coming over the phone. Then she hears someone downstairs open the door. Kate goes to her closet and grabs a gun hidden in a shoebox. She moves down the hallway into Aaron's room. Sitting beside him on the bed is Claire, who turns to Kate and warns her not to bring Aaron back. Kate bolts awake in bed. It was just a nightmare. She goes to Aaron's room and finds him alone sleeping. Kate starts to cry and says out loud she's sorry.
WHOOSH to Kate in the raft at night watching Aaron sleep. Hurley says he can't believe Locke actually moved the island. Jack scoffs, says no, he didn't. Hurley says well one minute it was there, the next it was gone. If Jack has a better explanation, Hurley would like to hear it. Then Lapidus stands up and starts shouting. There's a boat out there. They see the lights in the distance and start shouting. The boat turns in their direction. They are actually going to be rescued. But then Jack realizes something. He tells them they're going to have to lie about it all. Lapidus doesn't understand. Jack reminds him that the men on the freighter came to kill everyone on the island, that someone planted fake wreckage at the bottom of the ocean so everyone would think they were dead. What would happen to them if they say it wasn't their plane? What would happen to the people left on the island? Kate says they won't believe them, but Jack says let him do the talking.
As the boat pulls up beside the raft, they can hear a man shouting in Portuguese. He says the name Ms. Widmore, and time stops for Desmond. Penny looks over the railing, and Desmond finally sees her. For the first time in over three years, their eyes meet. Desmond climbs a rope ladder up to the deck, and they run into each other's arms. They hold each other weeping with joy. Desmond can't believe she found him. She tells him she has a tracking station. Desmond tells Penny he loves her and will never leave her again. Penny's crew help the others out of the raft. Desmond introduces Penny to everyone, and Jack tells her they need to talk.
[break]Days later, Hurley asks again what it's called, and Sayid says Membata. Hurley asks why they're doing this, and Sayid tells him it's the only way to keep them safe. They drop the life raft back into the ocean, and everyone says their good-byes. Lapidus says they should make landfall in about eight hours. The Oceanic Six climb down into the raft, and Jack says let's go home. They set off. Cut to a beach where a young boy is fishing. Suddenly, he sees the raft, and he calls out and waves. Jack rows to shore, and they're helped out by the villagers. They're finally back in civilization, and soon they'll be home.
WHOOSH to the street outside the Hoff/Drawlar Funeral Parlor. Jack pulls up and parks. This is the bearded, pill-popping, drinking Jack who has just left the airport and the argument with Kate. He smashes the knob off the front door and sneaks inside. Jack goes into back area and finds Jeremy Bentham's coffin there. He lifts the lid and looks at Bentham inside. Then from behind, a figure steps in and says hello. Jack startles. It's Ben. He asks if Bentham told Jack he was off the island, and Jack says he did. They talked about a month ago. Ben asks what he said. Jack says after they left, bad things happened, and that Bentham said it was Jack's fault for leaving. He told Jack that he has to go back. Ben tells Jack that he can't go back to the island alone. All of them have to go. Jack says he doesn't even know where Sayid is, Hurley's insane, Sun blames him for Jin's death, and Kate won't talk to him anymore. Ben says maybe he can help with that but it has to be all of them. Jack starts to leave but Ben stops him. Ben reminds Jack that he said all of them. Jack is going to have to bring him, too. Jack is surprised, wondering what Ben means. Ben indicates Locke lying face up in the coffin.
See you next year.