Alison's suspicions rise when she learns that Ethan argued with Sean on the beach just before he was presumed to have drowned, and she decides to report him to the police. Meanwhile, Hannah becomes worried that Logan might know more than he is letting on.

Dan continues to make inroads into Alison's life. Meanwhile, Hannah vows to find her father and clear his name. Just as Alison hits rock bottom, Dan presses his advantage, spiriting Alison to a mountain getaway and suggesting they both start a new life elsewhere.