The apocalypse is coming, and Sam (Jared Padalecki) and Dean (Jensen Ackles) prepare for the fight in very different ways. Sam joins Ruby (Genevieve Cortese) on a final run to kill Lilith (guest star Katherine Boecher), while Castiel (Misha Collins) and Zachariah (guest star Kurt Fuller) tell Dean it’s time to play his part in stopping Lucifer.
Eric Kripke wrote and directed the episode.