In a skiing station in Dakota, a gang of criminals leaded by Alexander "Alex" Ward plans the heist of golden bars from a small bank. While the lover of Alex, Gypsy Boulet, goes to an isolated cabin with the ski instructor Gil Jackson, a time bomb explodes a cave to divert the attention of the locals and the gangsters steal the gold. But the explosion releases a spider-like monster and due to a storm, the group becomes trapped in Gil's cabin and threatened by the creepy beast.