Twenty-eight years ago, Sam Winchester (Jared Padalecki) and Dean Winchester (Jensen Ackles) lost their mother to a mysterious and demonic supernatural force. Subsequently, their father John (Jeffrey Dean Morgan) raised them to be soldiers. He taught them about the paranormal evil that lives in the dark corners and on the back roads of America…and he taught them how to kill it.
Sam (Jared Padalecki) and Dean (Jensen Ackles) have spent the last nine years battling the things that go bump in the night. Over the years, with the help of the fallen angel Castiel (Misha Collins), and the King of Hell, Crowley (Mark A. Sheppard), the Winchesters have straddled the line between good and evil.