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Looking to watch Supernatural Season 4 Episode 16 online? TV Fanatic is your destination for every paid and free streaming option of the Supernatural S4E16 full episode from 2 affiliates.

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Episode Details

Supernatural Season 4 Episode 16: "On the Head of a Pin"

Someone finds Lucifer's sword and uses it to kill angels. Castiel and Uriel capture Alastair and try to get Dean to use his torturing skills to learn how to stop the murders.