John Winchester trained his sons Sam and Dean to hunt and kill supernatural entities after their mother Mary was murdered by a demon when they were young. Twenty-two years later, the brothers embark on a journey to find their missing father, fighting evil along the way. Along the journey, Sam develops terrifying abilities, including visions of people's deaths, which are connected to the demon that killed their mother. When their father dies, the brothers vow to complete his mission, only to discover disturbing truths about Sam's role in the demon's apocalyptic plan.
Sam and Dean Winchester were trained by their father to hunt the creatures of...