David Petersen is driving alone through the snow-covered Rocky Mountains of Colorado. But after saving a young diner waitress from her abusive ex-husband during a break, he sets off again, alone, despite the dangerous blizzard. Suddenly, one wrong move behind the wheel causes him to wake up in a ravine, right in the epicenter of the storm. However, now the cold is the least of his worries when a beast begins to roam nearby…