Supernatural S4E21 poster

Watch Supernatural – Season 4 Episode 21: When the Levee Breaks

Supernatural • Season 4, Episode 21 • 43 min • 2005 • ⭐ 8.3/10 • Drama , Mystery , Sci-Fi & Fantasy

Cast: Jared Padalecki , Jensen Ackles , Misha Collins

Directors: Eric Kripke

Watch Supernatural – S4E21

Episode Overview

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.

Episode Navigation

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