 The episode, which was originally titled "War", is the final episode of the "Villains" story arc, and was the last episode to be written and produced by Jeph Loeb prior to his departure from "Heroes" in November 2008.At Pinehearst, Peter explains to Nathan that Sylar killed their father and it was the only way to stop his plan.Nathan reveals that he has taken over and warns Peter to stay out of the way, causing Peter to knock him unconscious.