Matthew Fox

The battle lines are drawn as Locke puts his plan into action, which could finally liberate him from the island.

Locke carries on with his plan while Jack's group searches for Desmond.

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

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

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

Desmond wakes up and discovers he has returned to the island.

Sun and Jin desperately continue searching for each other. Meanwhile, Locke confronts his enemy.

Richard Alpert faces a difficult choice.

Ben deals with the consequences of an uncovered lie.

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

Hurley must convince Jack to accompany him on a mission, and Jin comes across an old acquaintance.

Locke goes in search of aid to further help his cause.

Kate finds herself on the run, while Jack is tasked with something that could put 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.

On the 100th episode milestone for the series, the time of reckoning has begun when Daniel Faraday comes clean regarding what he knows about the island.

Kate, Sawyer and Juliet try to save Ben. Kate starts to tell the truth about the lie in order to keep Aaron from harm.

Everyone on the island is at risk when one of the survivors decides to go against them and take matters into their own hands.

After meeting old acquaintances Sawyer is forced to continue lying to protect them.