The Kiowas and Comanches have joined forces for a war with the Blackfoot tribe. While their warriors are away, the Blackfoot seek to move their women and children to Cheyenne land for protection. When the Blackfoot food supplies are destroyed in a landslide, Brave Eagle and Smokey take supplies to the village at night and run into a Comanche ambush.; Old prospector Chris Wilkins once saved the Cheyenne tribe by warning them of a planned ambush by the Cree tribe. In return the Cheyenne promised to grant him a favor. Now, years later, Wilkins asks Brave Eagle to take him to the secret "Hidden Mine of Haunted Mountain," which holds the gold of the Cheyenne.