In “Brother’s Keeper,” Dean 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 (Ruth Connell) face off and Castiel (Misha Collins) gets caught in the middle.
The Supernatural finale airs TONIGHT, May 19 @ 9PM on The CW! Watch a promo below!
Supernatural “Brother’s Keeper” Promo
20+ Supernatural finale stills inside…