Supernatural2006 | TV Show

Cast & Crew  |  Episode Guide

Two brothers hunt demons, ghosts and other supernatural entities as they investigate crimes caused by paranormal forces.

Premiered: September 21, 2006

Rating: TV-14

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Season 4, Episode 21 When the Levee Breaks

First Aired: May 7, 2009

Sam is locked inside Bobby's panic room to allow him to detox from demon blood, but Bobby wants to free him early to help fight in the anticipated apocalypse. Dean disagrees and seeks help from Castiel.

Previous Episode

The Rapture

Season 4, Episode 20

April 30, 2009

Next Episode

Lucifer Rising

Season 4, Episode 22

May 14, 2009

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