Sawyer perpetrates a lie to protect the remaining survivors from the mistakes of the past.

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

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.

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 and bring them back to the island.

Kate discovers that someone knows the secret of Aaron’s true parental lineage. Meanwhile, the dramatic shifts through time are placing the lives of the remaining island survivors in extreme peril.