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Supernatural: On the Head of a Pin

Someone has killed seven angels, and Castiel and Uriel recruit Dean to interrogate their prisoner, Alastair, to learn who the killer is.

 

On the Head of a Pin

Season 4, Episode 16

Someone is killing angels and Castiel and Uriel ask Dean to use the torturing skills he learned in Hell to extract information from Alastair so they can stop the murders. Sam is concerned Dean can't handle the job but Dean agrees to do it. As Castiel searches for the truth about who killed the angels Uriel approaches behind him and asks him to join his rebellion to free Lucifer.

Production Number: 3T7516

Original Air Date: March 19, 2009

Certification: United States - TV-14-LV