As Dean feels the effects of the first blade, Metatron makes a move ..
Castiel needs Sam and Dean's help after a massive attack on the ange..
Castiel asks Dean and Sam to help interrogate one of Metatron's ange..
Sam and Dean look into monster families that are running Chicago's u..
Sheriff Mills calls Sam and Dean after a run-in with a vampire.
Metatron tries to get Castiel to join forces with him. Meanwhile, Sa..
While Dean deals with the after effects of the Mark of Cain, Sam lea..
Crowley promises to find the first blade, but ends up falling off th..
The last photograph of a dead teenager reveals a ghostly figure in t..
Sam and Dean are shocked to discover that the Men of Letters' bunker..
Dean and Sam go under cover at a fancy day spa to investigate recent..
Sam and Dean visit Garth in the hospital and demand to know where he..
Crowley needs Dean's help finding the only blade that can take down ..
Dean seeks revenge on the angel that killed Kevin; Castiel has a pla..
An angel war begins and a massive amount of angels are slaughtered. ..
Sheriff Mills asks Dean and Sam for help investigating several murde..
Dean helps an old friend with a ghost problem at a home for delinque..
Castiel calls Dean when he reads about a disappearance in the area; ..
Sam and Dean look up a spell to try to communicate with a dog when t..
Sam and Dean meet Dorothy from Oz and the wicked witch when they loc..
A group of angels hunts Castiel. Dean and Sam race to find their fri..
Dean and Sam take a captive Crowley to the Men of Letters base in th..
After Sam collapses, his doctor tells a frantic Dean that his brothe..