Are You There, God? It’s Me, Dean Winchester
After Dean's encounter with Castiel, Dean, Sam and Bobby brush up on their biblical lore when they're attacked by the vengeful spirits of people from the Winchesters' past. They're warned it's a sign that someone is trying to break seals…
Episodes
21
When the Levee Breaks 43
Dean and Bobby have something frightening locked in Bobby’s panic room: Sam, who is corrupted by demon blood. With the apocalypse drawing nearer, Bobby wants to free Sam to fight on their side.
22
Lucifer Rising 43
The brothers prepare to fight the forces of the apocalypse in different camps. While Sam and Ruby hunt down Lilith, Dean joins Castiel and Zachariah to take on Lucifer.