Episode Description: Beware, spoilers! To read - hover over the text.
Sam and Dean are looking for an alpha — in order to defeat dick Roman and the leviathans, Sam and Dean must locate three key. Castiel helps to find one, but in search of the rest of the Winchesters will face two of their strongest opponents — an alpha and Crowley. Meanwhile, Bobby tries out a new Ghost trick, the consequences of which are very dangerous.