Lost

The remaining survivors start to feel the effects caused by the island being moved, and Jack and Ben begin their quest to reunite the Ocean 6.

The remaining survivors start to feel the effects caused by the island being moved, and Jack and Ben begin their quest to reunite the Oceanic 6.

Desmond goes in search of a woman who could be the key to helping Faraday stop the island's erratic movements through time.

Kate learns that someone knows the secret of Aaron's parentage; the dramatic shifts through time endanger the remaining island survivors.

Locke takes on the burden to stop the island's increasingly violent shifts through time. Meanwhile, Ben hits a roadblock in his attempt to reunite the Oceanic 6.

The way back to the island is revealed to members of the Oceanic 6, but there's trouble ahead when not all of them wish to return.

John Locke's fateful mission off the island as Jeremy Bentham is revealed.

Sawyer perpetuates a lie with some of the other island survivors in order to protect themselves from mistakes of the past.

When some old friends drop in unannounced, Sawyer is forced to further perpetuate his lie in order to protect them.

Things begin to unravel when one of the survivors goes rogue and takes matters into their own hands, risking the lives of everyone on the island.

Kate goes to extreme measures to save Ben's life when Jack refuses to help. Meanwhile, Kate begins to tell the truth about the lie in order to protect Aaron.

To atone for sins of the past, Ben must attempt to summon the smoke monster in order to be judged.

Suspicions about a possible breach intensify after Ben is taken from the infirmary, and a reluctant Miles is forced to work with Hurley.

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.

Jack and Kate are at odds over the direction to take to save their fellow island survivors, and Locke further solidifies his stance as leader of The Others.

Jack's decision to set things right on the island is met with some strong resistance by those close to him, and Locke assigns Ben a difficult task.

Jack's decision to set things right on the island is met with some strong resistance by those close to him, and Locke assigns Ben a difficult task.