7x19 Of Grave Importance
First Aired: Apr. 20, 2012 on The CW
Summary: Sam and Dean investigate a series of murders and find out that the reason behind these murders is the spirit of Liam, a Grave Digger who was tortured and mocked by a group of teenagers because of his job.
Main Characters in this Episode
Bobby Singer: For the record, I hated that Swayze flick - romantic bull crap.
Annie Hawkins: Dead. Ghost. Me. Three words you never want to use in a sentence.