After Balthazar (guest star Sebastian Roche) changes history and keeps the Titanic from sinking, Fate (guest star Katie Walder) intervenes and begins killing those that would have died on the ship. Castiel (Misha Collins) tells Sam (Jared Padalecki) and Dean (Jensen Ackles) that Fate is very upset with the two of them and the only way they can stay alive is to kill her. Mike Rohl directed the episode written by Brett Matthews.