Iditarod musher Jessie Arnold is being stalked and terrorized by an anonymous enemy. First, one of her sled dogs is badly injured in a steel trap and an ominous note leaves no doubt that the trap was set with malicious intent. Threatening phone calls and unsigned messages follow-pressing Alaska State Trooper Alex Jensen to urge Jessie to go into hiding while he tries to track down the source of the threats. Finally, a near fatal car crash convinces Jessie to let Alex fly her to an isolated island more than two hundred miles away.