Warner Home Video is releasing "Supernatural: The Complete Fourth Season," starring Jensen Ackles and Jared Padalecki, on DVD and Blu-ray, Sept. 1.

The six-disc set contains all 22 one-hour episodes as well as over four hours of extras including featurettes, a gag reel and unaired scenes. "Supernatural: The Complete Fourth Season" is priced at $59.98 SRP on DVD and $79.98 SRP on Blu-ray.

Season 4 goes follows the resurrection of Dean. After enduring unspeakable torture, he escapes from Hell, rescued by an all-powerful creature he's never seen before ─ an Angel ─ a warrior of God who recruits Sam and Dean in Heaven's battle against Hell. And there are whispers that a certain fallen angel will soon be freed from his prison deep in Hell: Lucifer. If Sam and Dean can't stop it ─ if Lucifer walks free ─ he'll bring on the Apocalypse.

Meanwhile, the Winchester brothers reunite and hit the road, battling the supernatural wherever they go. They encounter demons, spirits, Dracula himself, and even a drunk, heavily armed seven-foot-tall teddy bear. All the while, the ultimate war draws them into its horror. Caught between Heaven and Hell, between God and the Devil, the Winchester brothers must battle for the future of humankind.

The DVD and Blu-Ray Special Features include:
• "The Mythologies of Supernatural: From Heaven to Hell" -- Three-section featurette gallery bridging Heaven, Purgatory, and Hell to examine key mythological precepts
• Commentary on three key episodes by executive producers and writers
• Extended/unaired scenes
• Gag reel