The CW has released an official description for the May 20 season finale of Supernatural.
In addition to this episode, “Brother’s Keeper,” The CW will be showing a repeat of the previous week’s episode, “The Prisoner,” in the 8PM hour. The Supernatural finale airs at 9.
SUPERNATURAL SEASON FINALE — Dean (Jensen Ackles) makes a shocking decision regarding the Mark of Cain that would change not only his life, but Sam’s (Jared Padalecki) too. Meanwhile, Crowley (Mark Sheppard) and Rowena (guest star Ruth Connell) face off and Castiel (Misha Collins) gets caught in the middle. Phil Sgriccia directed this episode written by Jeremy Carver (#1022). Original airdate 5/20/2015.