The survivors of Flight 815 find new hope of rescue when they successfully contact an offshore freighter. But their rescuers may have ulterior motives in finding the island, leading to a division within the camp. In the future, Hurley struggles with his decision to leave the island.
Sayid and Kate attempt to rescue Charlotte from Locke, in order to gain passage to the freighter. In the future, Sayid romances a Berlin woman in order to gain access to her elusive employer.
A turbulent trip back to the freighter causes Desmond to flash back in time, but when he returns he has no memory of his years on the island. With help from Sayid and Daniel, Desmond must discover what is happening to him before his brain can't take any more.
A woman from Juliet's past puts her and Jack on the trail of Daniel and Charlotte, who are looking for a Dharma station to carry out their secret agenda.
Unable to trust their "rescuers," Sun decides to move to Locke's camp -- prompting Juliet to do everything in her power to keep her and Jin with the beach camp. Sayid and Desmond meet the captain of the freighter face-to-face.
Sayid and Desmond confront Ben's spy on the freighter, who is someone they never expected to see again. Michael reveals what led him from life in New York back to the island.
Ben must go to great lengths when Locke's camp comes under attack by soldiers from the freighter. A body washes ashore at the beach camp, and in the future Ben makes contact with someone from the island.
Jack must put his life into Juliet's hands when a case of appendicitis threatens his life, while in the future he struggles with ghosts from the past and his changing relationship with Kate. Sawyer, Claire, Aaron and Miles run into problems in their trek through the jungle.
Locke seeks out Jacob's cabin, believing that he has been chosen by the island. On the freighter, Keamy will let nothing stand in the way of launching a full assault on the island.
As the evacuation begins, Jack and Kate pursue the soldiers who have come to destroy the island. Locke, Ben, and Hurley head for the Orchid station. And in the near future, the Oceanic Six return home to new lives and a media frenzy.
While Locke attempts to gain access to the Orchid station, the Others come to Ben's rescue. Those on the freighter deal with an imminent crisis, and the Oceanic Six find themselves closer to rescue.
The Oceanic Six make their way to the freighter, only to watch it explode -- forcing a new struggle for their survival. Ben undertakes extreme measures to follow Jacob's unorthodox instructions.
