Episode Four: Metamorphosis Claire and Moira make for the tower's top floor and a final confrontation with the Overseer. Will they survive and escape the island? Meanwhile, having learned of his daughter's fate, Barry prepares for the final confrontation, to keep Natalia from harm and have his revenge. Two timelines collide in this nail-biting final chapter. *Additional Raid Mode characters and stages included. *Episode One required to play.