This Season Pass includes all current episodes and will include future episodes after broadcast date as they become available. Over the years, with the help of fallen-angel Castiel, and the King of Hell, Crowley, the Winchesters have straddled the line between good and evil. Last season, the boys encountered their worst enemy yet, forcing them to leave Dean and Castiel stranded in Purgatory. Although Castiel is nowhere to be found, Dean manages a seemingly impossible escape from Purgatory - but not alone. He's returned with a mysterious comrade-in-arms whose reason for escape is more than Dean bargained for.