When a Mexican revolutionary, Yaqui Joe, absconds with 6,000 dollars to help further his country's revolution, an Arizona lawman is sent into Mexico to track him down. The three dodge the law and the military with the help of a local Mexican woman, Sarita. Led by an ambitious military leader, they find themselves chased through the mesas of Mexico and are captured. Their salvation comes in the form of Yaqui Joe's band of Mexican revolutionaries, who free the three and help overturn the despotic military government in their state.