Gnothi Seauton (S01E02)

Sarah reaches out to a longtime friend for assistance, while John opts to confront Sarah's ex. Meanwhile, Cameron forges a friendship with someone new. Together, they manage to break into a resistance safe house, only to find that they are not the only ones there. As events unfold, Agent Ellison uncovers the truth that Sarah is still alive, prompting the return of a menacing figure from her past.