Sam finds a clue to Dean’s whereabouts, so he, Mary and Bobby set out to investigate. Castiel imparts some sage advice on Jack, who, still desperate to belong, seeks out…

Quentin and Julia undertake a difficult journey; Eliot faces mounting catastrophes in Fillory; Margo attempts to fix the bad deal she made; Penny finds a new ally.

Sam has a premonition in which a man is killed, but the murder is made to look like a suicide. Sam convinces Dean that they must investigate the case, but…