Watch Supernatural Season 4 full episodes online, free and paid options via our partners and affiliates.

Dean and Zachariah
Watch Supernatural Season 4 Episode 22
"Lucifer Rising"
Original Air Date:

As the apocalypse approaches, Dean tries to find Sam to stop him from trying to kill Lilith. Dean must face the choice whether he will kill his brother.

Watch Supernatural Season 4 Episode 21
"When the Levee Breaks"
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Dean and Bobby lock Sam in Bobby's panic room in order to let him detox from demon blood.

Watch Supernatural Season 4 Episode 20
"The Rapture"
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Castiel appears to Dean in a dream and tells him he has something to say to him in private. Dan and Sam go searching for Castiel, but find Jimmy, Castiel's human vessel, instead.

Watch Supernatural Season 4 Episode 19
"Jump the Shark"
Original Air Date:

Dean and Sam find a boy named Adam, whose life changes when he becomes a monster. Adam may be the third Winchester brother.

Rob Benedict as Chuck
Watch Supernatural Season 4 Episode 18
"The Monster At the End of This Book"
Original Air Date:

Sam and Dean find a series of books named "Supernatural" that is based on their lives as demon hunters. They track down the writer, Carver Edlund, who turns his visions into the books.

Dean on the Ground
Watch Supernatural Season 4 Episode 16
"On the Head of a Pin"
Original Air Date:

Someone finds Lucifer's sword and uses it to kill angels. Castiel and Uriel capture Alastair and try to get Dean to use his torturing skills to learn how to stop the murders.

Laying in the Seal
Watch Supernatural Season 4 Episode 15
"Death Takes a Holiday"
Original Air Date:

Dean and Sam have no idea what they're dealing with when they stumble upon a town where no one can die! A woman survives a fatal car crash, a man walks away unscathed after falling off a building, and a 6 year old girl lives after flat lining.

Watch Supernatural Season 4 Episode 14
"Sex and Violence"
Original Air Date:

Sam and Dean go to a small town in Iowa, where three men have beat their wives to death. The guys figure out that a Siren is the cause of the deaths. The Siren eventually puts Sam and Dean under her spell and makes them fight each other to the death!

Watch Supernatural Season 4 Episode 13
"Afterschool Special"
Original Air Date:

Sam and Dean investigate a haunting at a high school they attended as children. The episode will contain flashbacks of what high school was like for them.

Watch Supernatural Season 4 Episode 12
"Criss Angel is a Douche Bag"
Original Air Date:

Sam and Dean investigate magicians delving in black magic after several people wind up dead in similar ways to the illusions performed on stage.

Dean Versus the Ghost
Watch Supernatural Season 4 Episode 11
"Family Remains"
Original Air Date:

Sam and Dean investigate a farm house that is haunted by a woman living in the walls.

Supernatural Season 4 Quotes

Sam: It's probably a dumbwaiter. All these old houses had them.
Dean: Know-it-all.
Sam: What?
Dean: What?
Sam: You said...
Dean: What?
Sam: Never mind.

Boy, three bedrooms, two baths, and one homicide. This place is going to sell like hotcakes.

Dean