Siblings Sam (Jared Padalecki) and Dean (Jensen Ackles) continue their quest to find their father in this otherworldly series' third season. Teaming with a married couple in the opener, Sam and Dean face off against a group of hellhounds representing the seven deadly sins. The duo's other adversaries include changelings who hunt down mothers and their children, and a female demon (Sasha Barrese) who's hot for Dean.