S2E20 · Two for the Road

Complete story — includes the ending

Ana Lucia quits her job and meets Christian, who asks her to accompany him to Australia as a bodyguard. She witnesses him violently pressing a woman to let him see his daughter and disgustedly abandons him. While waiting to board Flight 815, she sees Jack trying to get Christian's body on the plane and calls her mother, promising to reconcile with her when she lands. In the present, Henry tries to kill her when she gets too close. He tells Locke he is "one of the good ones" when asked why he did not kill him during the lockdown. Ana Lucia seduces Sawyer. With Michael having found the Others, Jack and Locke go to get guns from Sawyer, who realizes Ana Lucia stole his pistol. She tries to set up an escape attempt as an excuse to kill Henry, only to admit to Michael that she can no longer do it. He offers to kill him, only to kill her instead and shoot Libby when she enters to get blankets for a picnic with Hurley. He then shoots himself in the arm.