When the Levee Breaks

Sam is becoming more and more inhuman. Dean and Bobby put him in the safe hold until he gets over his addictions. After Sam escapes with help, unknown to him, from Castiel, he finds Ruby and begins to feed once again. Dean begins to truly believe that the old Sam is gone for good.

Season 4 | Episode 21

Jared Padalecki

Sam Winchester

Jensen Ackles

Dean Winchester

Misha Collins