Mike Sturges and his younger brother, Roy, are sentenced to Yuma Penitentiary on a trumped-up train robbery charge. Both endure cruel treatment before Mike escapes to extract revenge on their enemies.

Steve Reeves
as Mike Sturges

Wayde Preston
as Marlin Mayner

Guido Lollobrigida
as Sheriff

Mimmo Palmara
as Max Freeman

Silvana Venturelli
as Ruth Harper

Nello Pazzafini
as Shorty

Franco Fantasia
as Castleman

Enzo Fiermonte
as Baldy Morris

Aldo Sambrell
as Mexican Bounty Hunter

Rosalba Neri
as Encarnation