Oceanic Airlines plane, following flight 815 from Sydney to Los Angeles, has crashed and fell on a desert island. The first night 48 survivors heard a mysterious roar in the jungle. The next morning, Jack, Kate and Charlie found the radio in the cockpit. Sayid has repaired transceiver, tried to send a distress signal and spotted a mysterious message in French. Sawyer has shot the polar bear in the jungles. Hurley asked Sayid to calm Charlie. Sawyer recalled what led him to Australia. Russo came to the camp with the news of the approach of the Others. As a result, the survivors decided to hide in a bunker. Michael and Jin completed the construction of the raft. Procured dynamite, Jack, Kate, Hurley and Locke blew up the hatch. Daniel kidnapped baby Claire, but Sayid and Charlie caught her and returned the child. Jin, Sawyer, Michael and Walt left on a raft in the ocean.
After Jack, Kate and Locke entered the bunker, it appeared that there lives a man who for several years has injected to a computer station a digital code. Jack recalled his first meeting with Sarah. Michael recalled his break with Susan and the way he gave her parental rights to Walt. Sawyer recalled big scam, he cranked out with a woman who loved him. After Locke did not manage to enter the code, the emergency alarm started and wall map appeared on an island hoppers. Ana Lucia, Sayid and Charlie find Henry Gale's balloon. Locke recalled how a father for the second time turned to him for help. Between Libby and Hurley struck up a friendship. Henry Gale told Locke something that caused him to doubt the importance of the hopper. Hurley recalled his stay in a psychiatric hospital and his imaginary friend. Bernard decided to lay word SOS with stones on the shore. Between Jack and Kate once again ran a romantic spark. Locke's faith in the power of the island continued to fade. Rose and Bernard recalled their first meeting and honeymoon in Australia. Between Mr. Eko and Locke broke out a conflict on the appointment of the hopper. Desmond recalled his past, and including an unsuccessful attempt to get off the island.
Others took Jack, Sawyer and Kate to the station Hydra and divided them. Ben promised Jack to take him off the island, if he would agree to cooperate with him. Meanwhile, Sayid, Jin and Sun come to grips with the other, and Sun shot down one of them. Sun and Jin remembered about her relationship with Jai Lee. Mr. Eko's brother went to the ghost, and then the black smoke killed him. Juliet asked Jack to kill Ben during surgery. Sawyer and Kate had sex. Jack began to operate on Ben, but has stopped id order Sawyer and Kate can escape. Kate recalled their short marriage. Desmond recalled his life to the island. He found that he could see the future, and, in particular, predicted Charlie a quick death. Juliet comes to the camp on the shore and saves the life of Clare. It turns out that Juliet mishandled other and that the disease of Claire - is action of implant. Ben remembers how turned on the island and what happened to the "Dharma". Locke goes with Ben to Jacob and heard his voice. Ben shoots Locke. Juliet tells everyone that Ben asks her to spy.
This season focuses on the relationship between the survived people that arrived from the Kahana ship, sailed to the Island and the salvation of sixes Oceanic. Desmond returns nn camp with the last message of Charlie that the rescuers are not who they say they are. The survivors split into two groups: one led by Locke and do not trust strangers and go to the barracks, and the rest with Jack that is ready to go with them on contact. Ben and Miles make a deal. Jack realizes that Sayid and Desmond are in trouble. We see Kate in the future. It turns out that in the future, she becomes the foster mother of the Claire's child. Begins convey of people from the island to the ship by a boat. Helicopter lands on the island, where people from the ship flew over Ben and to kill everyone else on the island. To escape, Locke, Hurley and Ben went to the Orchid in order to move around the island. Ben rented to people from the ship. Visiting Orchids by Locke and Ben. Jack, Sawyer, Kate and Aaron, Desmond, Hurley fly to the ship. The explosion of the ship after the assassination of Kimmy because of the transmitter - meter pulse on his arm. Death of Michael and Gina. Salvation of Oceanic 6, Frank and Desmond. It is shown that in the coffin was Locke.
People remaining on the island begin to feel the effects of the island moving, Jack and Ben begin to work for the reunification of Oceanic six, to return to the island with Locke's body and to save those who remained. Hurley and Sayid are hiding from the police after what happened at the meeting place. Residents of the island are attacked by unknown enemies. And an old friend Kate makes a tempting offer, which will help keep Lies in secret. Flashbacks reveal Ben kidnapping Alex and his visit to Desmond and Penny. Meanwhile, Lapidus is taken into a hostage by survivors of Flight 316. Daniel returned to the island to warn the inhabitants of the disaster at the station The Swan. Jack, Kate and Daniel instigate a skirmish with the DHARMA Initiative, which ultimately leads to the arrest of Sawyer and Juliet. In flashbacks shows the relationship of Daniel with his parents: Eloise Hawking and Charles Widmore. In 1977, the survivors manage to detonate a hydrogen bomb in the station The Swan, which leads to terrible consequences for some of the characters. In 2007, Locke and Others go to the bottom of the statue, where Jacob lives. Locke is an impostor: an old friend Jacob, he makes Ben to kill him. In flashbacks, Jacob meets with several protagonists.
In last season two realities are shown. In the first, flight 815 lands at Los Angeles airport, where Kate escapes from the marshal, and Jack discovers that the coffin of his father is lost in transit. In the second, the survivors returned today after the murder of Jacob; Juliet dies and Sayid comes alive in the temple of the Others. The man in black, took the shape of Locke, is the smoke monster and kills a few people from the Ilana's team. Sawyer run out of the temple, and Kate tries to catch up him. Others are trying to poison Sayid but Jack stops them. Jin goes to look for Sun, but finds Claire, which saves him from the others. In an alternate reality, Kate helps Claire. The smoke monster in the form of Locke tries to convince Sawyer to leave the Island. The two-hour final serie, isvthe last in the sixth season and throughout the series. On the island, Desmond come down into the cave with the Light and turned it "off". As a consequence, Locke becomes mortal and before Kate kills him, he fatally hits Jack. Despite this, Jack had the strength to make Hurley the new keeper of the Island, relight the Light and save Desmond. Sawyer, Kate, Claire, Richard, Miles and Lapidus depart from the Island by Ajira Airways plane. In an alternate reality, which essentially became a purgatory before "go further" meet all the main characters and remember life on the Island. The series ends with the triumphant death of Jack in the middle of a bamboo grove. The last frame was closed Jack's eye. Blackout. LOST.