- "LA X"
The aftermath from Juliet's detonation of the hydrogen bomb is revealed.
- "What Kate Does"
Kate finds herself on the run, while Jack is tasked with something that could endanger a friend's life.
- "The Substitute"
Locke goes in search of help to further his cause.
Hurley must convince Jack to accompany him on an unspecified mission, and Jin stumbles across an old friend.
Sayid is faced with a difficult decision, and Claire sends a warning to the temple inhabitants.
- "Dr. Linus"
Ben deals with the consequences of an uncovered lie.
Locke tasks Sawyer with a mission.
- "Ab Aeterno"
Richard changes his allegiance before having an unexpected meeting.
- "The Package"
While Jin and Sun continue to search for each other, Locke meets with Charles Widmore.
- "Happily Ever After"
Desmond wakes up and discovers he's back on the island.
- "Everybody Loves Hugo"
Hurley agonizes over what to do next, and Locke becomes curious of the new arrival to his camp.
- "The Last Recruit"
As Jack and Locke's camps merge, alliances are forged and broken.
- "The Candidate"
ack must decide whether or not to trust Locke after he is asked to follow through on a difficult task.
- "Across the Sea"
The history of the relationship between Jacob and the Man in Black is revealed.
- "What They Died For"
As the Man in Black devises a new strategy, Jack's group searches for Desmond.
- "The End"
The battle lines are drawn when The Man in Black initiates his plan which could finally liberate him from the island.