Supernatural Season 4 Episode 21
When the Levee Breaks
Dean and Bobby have something frightening locked in Bobby's panic room: Sam, contaminated by demon blood. But as the apocalypse draws nearer, Bobby wants to free Sam to battle on their side.
4 - 22Lucifer RisingMay. 14, 2009- 4 - 21When the Levee BreaksMay. 07, 2009
- 4 - 20The RaptureApr. 30, 2009
- 4 - 19Jump the SharkApr. 23, 2009
- 4 - 18The Monster at the End of this BookApr. 02, 2009
- 4 - 17It's a Terrible LifeMar. 26, 2009
- 4 - 16On the Head of a PinMar. 19, 2009
- 4 - 15Death Takes a HolidayMar. 12, 2009
- 4 - 14Sex and ViolenceFeb. 05, 2009
- 4 - 13After School SpecialJan. 29, 2009
- 4 - 12Criss Angel Is A DouchebagJan. 22, 2009
- 4 - 11Family RemainsJan. 15, 2009
- 4 - 10Heaven and HellNov. 20, 2008
- 4 - 9I Know What You Did Last SummerNov. 13, 2008
- 4 - 8Wishful ThinkingNov. 06, 2008
- 4 - 7It's the Great Pumpkin, Sam WinchesterOct. 30, 2008
- 4 - 6Yellow FeverOct. 23, 2008
- 4 - 5Monster MovieOct. 16, 2008
- 4 - 4MetamorphosisOct. 09, 2008
- 4 - 3In the BeginningOct. 02, 2008
- 4 - 2Are You There, God? It's Me, Dean WinchesterSep. 25, 2008
- 4 - 1Lazarus RisingSep. 18, 2008
