An old girlfriend of Ty’s shows up at Heartland and stirs up trouble. Lou is reunited with Sugarfoot, Mrs. Bell’s miniature horse.

Lou decides to make a promotional video for Heartland. Ty’s new job at Briar Ridge isn’t going as planned. Scott gets Amy to help with a wild pony.

Clark believes a recent attack in a theater may be the work of a serial killer; Davis fears that his blackouts could mean that he is the killer.

Sam, Dean, Bobby and Castiel track Eve to a small town in Oregon. The guys discover the townspeople have been converted to demons, but surprisingly, they all appear to be…

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 and Bobby anxiously wait for Sam to wake up to see if Death was able to restore his soul without causing Sam to lose his mind. Meanwhile, Dean and…