S04 · E21

When the Levee Breaks

May 7, 200943mRating 8.0

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.

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When the Levee Breaks

Episodes

Lazarus Rising

Are You There, God? It's Me, Dean Winchester

In the Beginning

Metamorphosis

Monster Movie

Yellow Fever

It's the Great Pumpkin, Sam Winchester

Wishful Thinking

I Know What You Did Last Summer

Heaven and Hell

Family Remains

Criss Angel Is a Douchebag

After School Special

Sex and Violence

Death Takes a Holiday

On the Head of a Pin

It's a Terrible Life

The Monster at the End of this Book

Jump the Shark

The Rapture

When the Levee Breaks

Lucifer Rising