The ranger Jack Dunne and his dog Dynamite are called in to investigate a series of cattle rustlings.
Dynamite the Dog
as Dynamite
Edmund Cobb
as Jack Dunne
Marjorie Bonner
as Katy Pearl Lee
Pearl Sindelar
as Mary Doolittle
Francis Ford
as Brom Hockley
Patrick Rooney
as Bull Becker (as Pat Rooney)
Frank Clark
as Handsome Thomas (as Frank M. Clark)
Carl Sepulveda
as Jake
Lee Lin
as Cook
