The High Chaparral, the name of the ranch owned by the Cannon family in the Arizona Territory during the 1870's. Stubborn, determined, 50-year-old John Cannon is the patriarch of the family with ambitions to establish a cattle empire while finding a way to co-exist with the Apaches and the Mexicans just across the border. To help him, he has his younger brother Buck, who can out-drink, out-shoot, out-fight, and when motivated, out-work any man alive. He also has his son, Billy Blue, a young man in his early 20's, whose mother is killed in the first episode. In an arranged marriage intended to keep peace with the neighbors, John then marries an aristocratic Mexican beauty, Victoria Montoya, daughter of Don Sebastian Montoya, a wealthy Sonoran rancher. Her brother, Manolito, accompanies Victoria to the Cannon ranch as her guardian, staying on as a member of the household even after the arranged marriage turns to one of substance and trust.