When a range war over water rights appears imminent, a masked man wearing a Robin Hood costume supporting the homesteaders knocks down ranchers' fences and stampedes stock.
A telegrapher's desperate message for help forces two murderous thieves to hide their loot in a box of bicycle parts meant for a pair of intrepid cross-country cyclists.
Diablo's barber, Paul Denain, is murdered when he refuses to sell his small ranch. His will leaves everything to his daughter who he hadn't seen in years.
While surveying the route for the first telephone line intended to link remote ranches with the Diablo phone company spot a burning ranch house and arrive at the neighboring homestead.
