Guillaume Dabinpons

Kate discovers that someone knows the truth about her 'son's' parental lineage. Meanwhile, the castaways feel the effects of the time-shifting island.

The burden falls to Locke to stop the island's shifts through time. Meanwhile, Ben's attempts to reunite the Oceanic Six are proving unsuccessful.

Sarah confronts Brody. After talking to him, she realises she no longer wants him to be part of her or Nora's life. Meanwhile, Olivia struggles with the addition of baby Daniel to the family.