An unscrupulous land developer, Dick Krantz, ignores the protests of Native Americans as he violates their ancestral burial grounds.
When one of Krantz's construction crews unearths an ancient relic, they unleash a giant skeletal monster that proceeds to kill everyone in its path.
Evans must deal with his rebellious daughter, unhelpful bureaucrats, and Johnny Black Hawk, a Native American who agitates for violence.
After consulting with the local chief, Storm Cloud, Evans learns he must locate the relic and use it in ritual combat against the monster.
Foy criticized the story as "pointless and derivative" and the effects as cartoonish, though he stated that the monster gives Bone Eater "moments of wacky charm".