Castiel decides to become a hunter, like Sam and Dean. But his first day on the job is a doozy when they investigate a series of murders caused by old cartoon gags. Mea...
Sam and Dean's grandfather, Henry Winchester, arrives by time travel, claiming that he has something to protect from an Abaddon that is hot on his trail.
While searching for Kevin, again, Charlie joins up with Sam and Dean as they track down a creature that's been liquefying its victims. Plus, a new side of Charlie is re...
Sam and Dean search for the Word's author, Metatron. Castiel tries to protect the angel tablet. Kevin tries to solve the third trial under Crowley's supervision.
Sam and Dean try to figure out how to cure a demon. Crowley starts killing victims that Sam and Dean have saved from previous jobs. Castiel and Metatron begin the trial...
Sam and Dean capture Crowley to finish the trials and close the gates of Hell. Castiel and Metatron continue the trials to close the gates of Heaven. Sam is left with a...