High Quality Content by WIKIPEDIA articles! Supernatural is a supernatural drama television series, created by Eric Kripke, that follows brothers Sam (Jared Padalecki) and Dean Winchester (Jensen Ackles) as they travel throughout the United States hunting supernatural creatures. Their main adversaries throughout the series are demons. The brothers first attempt to hunt down Azazel—the demon responsible for their mother`s death—and then Lilith, the demon who holds the contract for Dean`s soul and attempts to free Lucifer, a fallen angel. The fifth season features the rise of Lucifer, whom the Winchesters must stop to prevent the Apocalypse. The demon Crowley takes control of Hell and begins searching for Purgatory in the sixth season, while Lucifer`s defeat results in a war among the angels in Heaven. The seventh season focuses on the Winchesters attempting to stop the Leviathans, creatures released from Purgatory, from taking over the world. The series borrows heavily from folklore and urban legends, and explores Pagan and Christian mythology.