Synopsis:
Dean gets a phone call from Sam, who's been missing for 10 days and doesn't know where he is or how he got there. Once they meet up, the Winchester Brothers discover that Sam has killed a man in cold blood. But Dean finds out that it wasn't Sam who killed, but the demon inside him. Sam, possessed by the demon, goes to Minnesota to kill Jo and Bobby, but Dean arrives in time and together, he and Bobby banish the demon back to Hell.