Hopalong Cassidy, boss of the Bar 20 ranch in Texas, rides down the Camino Real in the New Mexico cattle country near Alamogordo, in response to an urgent message from his lifelong sweetheart, Nora Blake, who is in serious trouble. Before he and his saddlemates, "Lucky" Jenkins and "Pappy", can reach her ranch, they are stopped by Clay Allison, a cattle-rustler who is in almost complete control of the district, and wants to extend his holdings by seizing Nora's cattle and driving her out. Seeing Cassidy as a menace to his plans, he has him arrested on a trumped-up charge. Cassidy and his pals shoot their way out of the trouble and reach Nora;s ranch where they learn that Allison's henchmen have murdered her foreman, Tom Dillon, and Allison has sent for a crew of outlaws on the Texas border.
William Boyd
as Hopalong Cassidy
Russell Hayden
as Lucky Jenkins
Frank Darien
as Pappy
Nora Lane
as Nora Blake
Robert Fiske
as Clay Allison
Carleton Young
as Jeff Caffrey
Margaret Marquis
as Mary Dillon
John Elliott
as Tom Dillon
Gertrude Hoffmann
as Ma Caffrey
Ed Cassidy
as Sheriff Hawley
Gordon Hart
as Judge Belcher
Charles Murphy
as Tex, leader of Texas gang
