Supernatural 12×18 “The Memory Remains” Season 12 Episode 18 Promo – Sam (Jared Padalecki) and Dean (Jensen Ac kles) investigate a missing person’s case in a small town. The lead witness tells the Winchesters the attacker was a man with the head of a goat. Sam and Dean aren’t sure what to believe but when the witness goes missing they realize the town is hiding a dark secret. Phil Sgriccia directed the episode written by John Bring (#1218). Original airdate 4/13/2017.