Two African American bounty hunters, Boss and his sidekick Amos, ride into the town of San Miguel. They're in pursuit of the outlaw Jed Clayton and hope to bring him to justice. Upon their arrival, they discover that the town is under the oppressive rule of Clayton and his gang. The townsfolk are living in fear, and the local law is either too weak or too corrupt to stand up to them. Recognizing an opportunity, Boss takes on the role of sheriff, with Amos as his deputy. They immediately begin enforcing their own strict brand of justice, which does not sit well with either Clayton's gang or some of the racist townspeople.

As Boss implements new laws and starts cleaning up the town, tensions rise. His presence challenges the existing social order, and several confrontations ensue. Throughout this period, Boss and Amos experience both resistance and support from various townspeople. A combination of shootouts, clever strategies, and bold proclamations helps them secure a tentative hold over San Miguel. The unfolding events set the stage for an inevitable clash between Boss and Clayton, where these two strong wills must contend for control and justice in the town.