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.
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 (source: ABCmedianet).
Locke shoulders the burden of ending the island’s increasingly violent movements through time; Ben is stymied in his efforts 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.
Desmond looks for a woman who might be the key to helping Faraday stop the island’s unpredictable movements through time; Locke finds out who has been attacking the survivors.