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.

Sam and Dean reunite with Castiel. Digging through the Men of Letters’ files, they stumble upon an undiscovered film which could be the key to the third trial. Metatron enlists…

Abaddon finally gets something that she can use as leverage against Crowley to force him to lure the Winchesters. Meanwhile, Castiel rallies his forces and asks Sam and Dean to…