Unable to legally capture and sell a herd of protected wild horses, corrupt rancher Rance Macgowan uses his trained killer horse, Volcano, to substitute for the real leader of the herd and cause havoc and death among the ranches. With the government about to drop the restrictions on rounding up the herd, the Three Mesquiteers find themselves in the middle of the controversy after their friend, Sheriff Miller is killed by Volcano.
Robert Livingston
as Stony Brooke
Ray Corrigan
as Tucson Smith
Max Terhune
as Lullaby Joslin
J.P. McGowan
as Rance McGowan
Rita Hayworth
as Rita
Harry Tenbrook
as Joe Harvey - McGowan Henchman
Sammy McKim
as Tim Miller - Sheriff's Son
Ed Cassidy
as Sheriff Miller
F.R. Smith
as Henchman
George Plues
as McGowan Henchman
Jack Kirk
as Rancher
Eddie Boland
as Pete
