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…

Dean becomes suspicious of Samuel’s motives, but Sam isn’t sold on the idea that their grandfather is doing anything wrong. The brothers go along on a hunt with Samuel and…

Sam investigates a case about missing babies whose parents are being murdered. At one of the crime scenes, he discovers a baby that was left behind and calls Dean for…

Sam is mysteriously released from Hell and seeks out his brother, trying to have a normal life. Together the brothers must join forces with their maternal grandfather, Samuel, and begin…