This surprisingly violent 15-episode serial takes place on the border between Texas and Mexico. When warned by Captain Jack of the Texas Rangers of impending trouble, elderly rancher Bill Burrel swears that Mexican cattle rustler Pancho won't do any riding or shooting in the area again. Pancho's lieutenant Santas, (who desires his boss's daughter Juanita's hand, and has been refused), overhears Burrel and decides to make things rough on Pancho by stirring up trouble for both sides. Pancho and his raiders, sworn to drive the settlers off the border country, attack the Burrel ranch and shoot Burrel dead, and his son Harry swears to make Pancho pay for his night's work. In the conflict that follows Pancho is knocked unconscious and his hands crushed in a press by masked men, apparently Texas Rangers. Though the torture is actually performed by the traitorous Santas and his cohort Rodriguez, Pancho blames the Rangers for the injury, swears revenge, and the two factions resolve to destroy ...