It was meant to be a fun weekend getaway, one where all their worries melted away and they could enjoy the quiet solitude of the Black Hills. But one brutal accident changes everything. Alone, hurt, and lost in the rural plains of South Dakota, the only hope for the remaining survivors of the crash is to get out of the blizzard they're trapped in and find refuge in the small, distant town of Reliance. But as the winter storm rages on and the darkness surrounds them, the last survivors soon realize that braving the storm may be the least of their worries... Because they're not alone. Something is out there with them, and it's hungry.