When Sam and Dean join forces with an unexpected ally, the outcome alters the course of two lives; Heaven faces an attack from a dark force, driving Castiel to make an enormous sacrifice to make things right.
Older Dean Winchester: [Older Dean is digging up a grave] Owww! My elbows! I'm all creaky.
Bobby Singer: Hurry up, you cry baby!
Older Dean Winchester: Pound it up your ass, Ironside.