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 a familial connection.
Sam enlists everyone’s help in trying to track down Dean, who can literally be anywhere. Meanwhile, Castiel may be in over his head after meeting up with an unreliable source. After being drained of his grace, Jack is adjusting to life as a human, learning new skills and figuring out how he fits in to this world of hunters.