Watch the complete 10th Season of The CW's fan-favorite, "Supernatural"!

Twenty-six years ago, Sam and Dean Winchester lost their mother to a mysterious and demonic supernatural force. Subsequently, their father 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. This haunting series follows the Winchester brothers as they crisscross the lonely and mysterious back roads of the country in their '67 Chevy Impala, hunting down every evil supernatural force they encounter along the way. At the end of the fourth season, Sam unwittingly broke the final seal – that held Lucifer captive in Hell. Now, Lucifer is free, the Apocalypse is here and angels prepare for a spectacular final battle. Against a landscape of celestial violence, natural disasters and a rising human death toll, Sam and Dean, with the help of fallen angel Castiel, must find a way to achieve the impossible: Kill the Devil.