Ken Maynard's exceptionally intelligent horse, Tarzan the Wonder Horse, is the star of this western about evil cowboy Steve Frazer (Welch) who gathers horses for slaughter, whose meat is sold to pet food manufacturers. The wild horse Tarzan frees the doomed horses from their corrals, and Frazer convinces the Sheriff that Tarzan is a threat and can be shot on sight. Local cowboy Ken Benson (Maynard) and rancher Pat Riley (Kennedy) work together to clear Tarzan's good name and put Frazier behind bars for his evil deeds.
as Ken Benson
as Pat Riley
as Steve Frazier
as Henchman Butch
as Aunt Martha
as Henchman Spike
as Cowhand Slim
as Sheriff
as Hank - Cowhand
as Bob - Rustler
as Deputy
as Injun - Cowhand
as Shorty - Cowhand
as Jim - Cowhand
as Chuck Wagon Cook
as Hall - Attorney
as Deputy
as Bud - Henchman
as Al - Henchman
as Cowhand
as Jack - Henchman
as Slim - Henchman
