Park Ranger Doug Williams finds himself looking for three strangers, two men and a woman, after someone has murdered their local supply store's owner and his wife. When he sets out with his sled and dog-team to search for the killers, he finds his fellow ranger and best friend dead in a pool of frozen blood on the snow. What's more, he's also caught in the middle of one of the worst storms in recent Alaskan history. What he doesn't know is that one of the men has paid his wife, who is alone in their cabin, except for her young dog to keep her company, a visit.