Episode Description: Beware, spoilers! To read - hover over the text.
Crowley notices that Dean is becoming more aggressive. Dean tells him that it's a side effect of being a demon, but Crowley knows it's something more ─ the Mark of Cain needs to be fed. Meanwhile, Sam is captured by Cole, an angry man who blames Dean for the death of his father a few years ago and wants revenge. Cole tortures Sam, hoping that he would reveal the whereabouts of Dean. Hannah sees how Castiel is weakened, while his grace continues to fade, so she makes a bold move, asking for Metatron's help.