High Chaparral on NBC

The Cannon family fights to establish a ranch in the Arizona Territory of the 1870s, amid conflicts with kin and the threat of hostile Indians. Forceful family head John is helped by his brother Buck and son Billy, whose mother is killed in the first episode. After her death, John unites the family with the wealthy Montoyas by marrying their daughter Victoria, setting up the series premise of two powerful families dealing with challenges from outside and within.