Supernatural: Watch Season 9 Episode 21 Online

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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 was a TV Fanatic Staff Writer. He retired in May of 2017. Follow him on Twitter.

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Supernatural Season 9 Episode 21 Quotes

That's the problem. See, you don't think anybody's lying. I think everybody's lying. It's a gift.


You betrayed me? No one in the history of torture's been tortured with torture like the torture you'll be tortured with.