The body of a murdered ranch hand is discovered in the remote canyon country bear Moab, Utah, a mecca for outdoor adventure seekers. The only clue besides a 9-mm slug in the victim's head is an ancient-Indian potsherd stuck into his chest. Deputy Sheriff Manny Rivera is assigned the case and judges that it's likely related to a drug deal gone bad. But he's actually up against an intelligent and cunning adversary driven by greed who's discovered a long-forgotten cave containing a collection of rare museum-quality Indian artifacts. Local politicians and merchants are exerting strong pressure on the sheriff for a quick resolution to the case as the killing is threatening to disrupt the upcoming tourist season, Moab's sole source of economic activity. After all, who would want to explore the back-country with a killer on the loose out there?