Set in the autumn and winter seasons of 1845 Montana, the Blackfoot tribe of Chief Winterhawk are ill. His friend and blood-brother, trapper Guthrie, suggests he ask the Settlers in a nearby settlement for help, but they, learning that Wintehawk's people are infected by smallpox, become afraid and back away quickly. Two fur trappers/smugglers, Gates and Scoby, tell Winterhawk and his Braves to follow them and they will take them to someone that has the cure.The Trappers ambush and murder Winterhawk's Braves as Winterhawk escapes after sensing something is wrong. In retribution, Winterhawk and more of his Braves abducts a young woman, Clayanna, and her brother Cotton, from the settlement. Clayanna's uncle Finley, organizes a posse of several trackers by hiring Guthrie, under protest, to follow Winterhawk and his band of warriors, leaving Guthries woman, Pale Flower alone, to get Clayanna and Cotton back at any cost. However, the two murderous trappers who slaughtered Winterhawk's Braves are ahead of the rescue party selling furs stolen from Pale Flower, after raping and murdering her while Guthrie is away.