Hunter Rufus Turner calls in Bobby, Sam, and Dean to deal with a demon infestation in his town, but they soon discover the truth is much more horrifying. Meanwhile, Castiel…

Sam and Dean discover a doctor who, back in 1816, became obsessed with finding the secret of eternal life by taking people’s vital organs. Meanwhile, Bobby finds Bela and Dean…

A dangerous creature is accidentally released into an old house, attacking a mother and her child, leaving them both in a coma. Sam and Dean learn that Bobby and Rufus…

As Sam and Dean race the clock on a high-stakes mission, Bobby seeks the help of an unlikely old friend to solve one of the most personal cases of his…

Eve, the Mother of All, unleashes a new monster upon the world: a black worm-slug that can enter the brain and force people to kill. Sam and Dean join forces…

After Bobby discovers Crowley has no intentions of returning Bobby’s soul, the hunter takes matters into his own hands. He calls on Sam and Dean for help after he unearths…