In a setting where environmentalists clash with ranchers over grazing rights, what are the chances that agency intern Joan Aquero and rancher Zeb Enwright will trust their growing attraction? As a novice but aspiring Westerner, Joan compares herself with Ann Bassett, the "Queen of the Cattle Rustlers" (and a real person), who by feuding with a large-scale cattleman in former times made a name for herself in the region. Ann's marriage to a man initially allied with her enemies was unsuccessful; should that outcome be a warning to Joan? How will Joan come to understand the grazing rights issue, respond to the threat against her it provokes, and resolve her feelings for Zeb as she strives to make a place for herself in the West?