Cast & Crew
Roving bandit gangs have been raiding and terrorizing Steve Allen's neighboring ranchers and driving them from their property. Undercover government agent Tom Kenyon and his sidekick, Pierre La Fair, arrive to investigate the disappearance of a surveyor, George Kent, and to help the Allens. Tom suspects that whoever is behind the bandit gangs has a specific reason for wanting the ranch land. Tip Wallace, the head of the raiders, kills Allen's neighbor, Bedford, leaving his son Donny an orphan. Steve and his daughter Joan unofficially adopt Donny, but Wallace then turns his attention on them. He sends his second-in-command, Jim Regan, a personal friend of the Allens, to issue a disguised warning to leave. Tom becomes suspicious of Regan, who instigates a fistfight, and later, Wallace and Regan's cowboys chase Tom and Pierre, who turn the tables on the would-be killers and leave them horseless and shoeless. When Donny shows Tom some valuable "rock" that Kent had found on the Bedford property, Tom realizes that Wallace wants to monopolize the valuable tungsten deposits on the ranches. The Allens remain steadfast, as does fellow rancher Wade, so Wallace orders Regan to convince them to sell their property to him. While out for a ride, Donny recognizes his father's assassin going into Regan's barn, and Tom sends the boy to alert the sheriff, while he investigates the barn. There he finds Kent held hostage. Wallace knocks Tom out and then heads for the Allen ranch. Kent revives Tom and warns him that Wallace is a German agent who knows that Kent found a tungsten deposit that runs the entire length of the valley. Tom and Kent overpower their guard, and while Kent stays behind to wait for help, Tom and the posse Donny rounded up ride to the Allen ranch. Regan and Wallace have just succeeded in convincing Wade and Allen to sell their property, but when Regan fires at Tom, a gun battle ensues between the posse and Wallace's gang. Tom shoots Wallace and Regan in self-defense, and the land is returned to the ranchers, who are pleased to learn of its wealthy mineral deposits.
In the onscreen credits, the horse Prince was credited above the title as Tom Keene's "famous horse Prince." Modern sources include the following actors in the cast: Gene Alsace, Tex Palmer, Chick Hannon, and Tom Seidel.