Season 5 Episode 20 episode 20

Supernatural Season 5 Episode 20 "The Devil You Know": Promo Trailer

Supernatural Season 5 Episode 20 "The Devil You Know": Promo Trailer

Oh, foolish demons. Don't they know by now that when the Winchester boys work together they are an unstoppable force? This apocalypse is totally not going to go the way they planned...

Enjoy the spoilers in the promo for next week's episode!