While Sam and Dean are looking for their father, John is looking for clues about the being that killed his wife. He investigates Lily, the daughter of a woman who died in a fire in Michigan, the same way Mary had 22 years ago. Lily's father, Gray, tells him that on the day of the fire "a yellow eyed man" made Lily drink blood. They visit Lily, however "black eyed beings" are drawing closer to them.
