Kate and Sawyer discover a briefcase and the race begins to win ownership of it. Charlie is still depressed over Claire, and is given a sharp talking to by Rose.

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Jack, Kate, Locke and Boone go after Ethan, Claire and Charlie. They separate, and while Jack and Kate confront Ethan, Locke and Boon find another mystery at the jungle. Flashbacks reveal more about Jack’s past with his dad.

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Claire begins to have reoccurring nightmares which one night result in her turning up with bloody hands, which leads Charlie to find out what is really going on. However, Jack isn’t sure that anything really happened. Meanwhile, Hurley finds the flight manifest and discovers something shocking about a certain passenger.

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Ashamed with his behavior torturing Sawyer, Sayid Jarrah decides to leave the group of survivors and travel alone through the island, trying to find the source of transmission and map the place. He is arrested and tortured by the French survivor Danielle Rousseau (Mira Furlan) and recalls his beloved Nadia (Andrea Gabriel) back to his [...]

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Shannon his having an asthma attack, and Boone is sure that Sawyer has her medications- but he won’t give it. As Kate’s way to deal with this situation doesn’t work, Sayid takes things into his own hands… and IT WILL NOT end good.

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Trying to kick his drug habit with encouragement from Locke, Charlie starts to go through heroin withdrawl, struggling with his resolve. Jack is trapped in a cave-in, and Charlie becomes trapped with him when the first rescue tunnel collapses as well. Kate, Sayid, and Sawyer attempt to triangulate the position of the distress signal coming [...]

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Jin jumps Michael and tries to beat him to death for no apparent reason, which gets him handcuffed to the wreckage until “why” can be figured out. While gathering water, Jack starts to talk about moving the survivors to the near-by cave for safety and practicality, but is met with resistance and reluctance. The survivors [...]

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Dr. Jack Shephard is not able to save a survivor drowning in the sea and he becomes affected by the incident and the pressure of the community pointing him as a leader. Jack has visions of his father in the island and tries to chase him. Jack’s background story is revealed showing the relationship he [...]

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Jack, Kate and Charlie return to the group, but the transceiver is broken. Sayid Jarrah fixes the apparatus and organizes an expedition with Kate, Charlie, Shannon Rutherford and her brother Boone Carlyle and the dangerous James “Sawyer” Ford to hike and climb a mountain to transmit a SOS. The group receives a sixteen years old [...]

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Forty-eight survivors of an airline flight originating from Australia, bound for the U.S., which crash-lands onto an unknown island 1000 miles off course, struggle to figure out a way to survive, why trying to find a way to be rescued.

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