Survival of the Fittest
Summary: Air Date: May 18th 2012 Friday
As Dick Roman prepares to make his move and turn the U.S. into a slaughterhouse, Sam and Dean attempt to assemble the weapon necessary to stop him. However, when Castiel refuses to fight, the Prophet Kevin is captured, Crowley joins the other side, and Bobby goes berserk, everything looks hopeless for the Winchesters.
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