Sam continues to try to save Dean from the Mark of Cain. Realizing that Dean's antics are causing problems for him in hell, Crowley seeks help from a reluctant Castiel. ...

Dean is a demon and running amuck with Crowley while Sam tries to figure out what happened to his brother. Meanwhile, Castiel is dealing with his diminishing grace. ...

Sam and Dean investigate a series of odd murders that strangely resemble fairy tales and urban legends. The brothers track down an 11-year-old boy named Jesse, and realiz ...