Devil's Due is a lawless town populated by outlaws and ruled by the savage Beau Rawlins. The town provides a refuge for a band of vicious killers who are murdering nesters in nearby Capstone, Texas. The villainous Rawlins is using one of Capstone's respected citizens in his plan to frame a wealthy rancher for the killings and instigate a land war. Range Detective Rance Dehner must uncover the identities of those responsible for the deadly assaults before an armed conflict between ranchers and nesters leads to a river of innocent blood being shed. But is it too late for that?