THURSDAY, DECEMBER 22
"Keep Calm and Carry On" - (9:00-10:00 p.m. ET) (TV-) (HDTV)
MAMA WINCHESTER IS BACK - Dean (Jensen Ackles) is overwhelmed as he comes face to face with his mom, Mary Winchester (guest star Samantha Smith). Meanwhile, Sam (Jared Padalecki) is fighting for his life after Toni, from the Woman of Letters, shot him. Phil Sgriccia directed the episode written by Andrew Dabb (#1201). Original airdate 10/13/2016.