On the Head of a Pin Supernatural : Season 4 Episode 16
TV-14 The CW 44m
Aired: March 19th, 2009 @ 8:00 PM EST on The CW
Can torture be God's work? After seven angels are mysteriously murdered, Castiel and Uriel demand that Dean use the agony-inducing skills he learned in Hell to extract information from Alastair.
