Watch Supernatural Season 10 Episode 22 Online right here via TV Fanatic. Sam gets Charlie's email cracking the code, and he goes off to kill Crowley to complete his end of the bargain. But is Crowley ready to die? Dean, however, is out for revenge, and he heads off to take down the Stynes. It's a bloody mess, but has Dean gone off the reservation? This is a heart-stopping episode.