Supernatural 15x07 "Last Call" Season 15 Episode 7 Promo trailer - CLOSING TIME – Dean (Jensen Ackles) goes off on his own to take on a case. Meanwhile, Castiel (Misha Collins) has an idea of how he can help Sam (Jared Padalecki) track down God. Amyn Kaderali directed the episode written by Jeremy Adams (#1507). Original Airdate 1252019.