Episode 1.23: Exodus, Part 1
The French woman -- Rousseau -- shocks the survivors by showing up with a dire warning about “the others.” Meanwhile, Michael and Jin ready the raft for sailing.
Also from TV guide:
In Part 1 of the two-part season finale, the day of the plane crash is recalled as Rousseau (Mira Furlan) shocks the survivors with a warning about "the others." Meanwhile, Jin and Michael wrap up preparations for the raft's maiden voyage.
