Locke devises a new strategy; Jack’s group searches for Desmond.

The motives of Locke are finally explained

Jack’s suspicions about Locke make his decision more difficult after he is asked to complete a difficult task.

Alliances are forged and broken as the Locke and Jack camps merge.

Hurley agonizes over what the group should do next, and Locke is curious about the new arrival to his camp.

Desmond wakes up to discover he’s back on the island.

Sun and Jin desperately continue their search for one another, and Locke confronts his enemy.

Richard Alpert faces a difficult choice.

Locke trusts Sawyer with a mission.

Ben deals with the consequences of an uncovered lie.

Sayid faces a difficult decision; Claire sends a warning to the temple inhabitants.

Hurley must convince Jack to accompany him on an unspecified mission, and Jin stumbles across an old friend.

Locke goes in search of help to further his cause.

Kate finds herself on the run, while Jack is tasked with something that could a friend’s life at risk.

The aftermath from Juliet’s detonation of the hydrogen bomb is revealed.

The aftermath from Juliet’s detonation of the hydrogen bomb is revealed.