Enrique hears that his grandfather is working at a plantation outside Hermosillo, a thriving town in Sonora, Mexico. In Hermosillo,Enrique finds that Arriquibar Sosa, who runs the town with an iron fist, has taken his grandfather prisoner. And when he refuses to become one of Sosas thugs, Enrique is taken prisoner as well. Good thing he never travels alone... Enriques riding partner, Sereno, sends word to their old friend Pang Lo, who immediately contacts Chas Dutton. And when the old crew gathers in Sonora, freeing their friend is only the first order of business. Taking down the Sosa regime is next. But finding Enriques grandfather may be the biggest challenge of all...