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Watch Supernatural the Animation online: Episode 21 All Hell Breaks Loose Part 1

When demon activity starts becoming more and more active, Sam suddenly disappears in front of Dean's eyes. When Sam comes to, he learns that Lily, Jake and other people who are holding special powers have been gathered together in a ruined ghost town. There, Sam and the others learn about their cruel fate and every detail about the dreadful plan imposed on them by the Yellow Eyed Demon.

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