...And Then There Were None
Show: Supernatural --> Season: 6 - Season 6
AirDate: 3/4/2011
Runtime: 42
Voting: 7.1 (18)

Overview: 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 with Bobby and Rufus and track it to a cannery, only to discover that Gwen and Samuel are also there looking for the monster... and none of them know who the monster is inside.