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Supernatural: Watch Season 9 Episode 21 Online

by at .  Updated at . Comments

Only one can claim the crown of Hell.

On Supernatural Season 9 Episode 21, the battle between Crowley and Abaddon came to its climactic conclusion. Twists, betrayals, sons, Poughkeepsie and Dean bringing on the full power of the Mark of Cain were on display. But who was left standing?

Meanwhile, the battle for Heaven was just heating up as Castiel sought Gadreel to help on his side. Will he or will Gadreel stick to helping Metatron?

See who takes control of Hell when you watch Supernatural online now.

Sean McKenna is a TV Fanatic Staff Writer. Follow him on Twitter.

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