Set in the autumn and winter seasons of 1875 Montana, the tribe of Chief Winterhawk are ill. His friend, trapper Guthrie, suggests to ask the white men in a nearby settlement for help, but the white people, learning that Wintehawk's people are infected by smallpox, drive him away. Then two fur trappers/smugglers kill Winterhawk's companion. In retribution, Winterhawk abducts a young woman, named Clayanna, and her daughter from the settlement and takes her away. Clayanna's father organizes a posse of several trackers to follow Winterhawk and his band of warriors to get Clayanna back at any cost. However, the two evil trappers who killed Winterhawk's friend are also tagging along one step behind everyone.