In Valley of Creeping Death, the Lone Ranger and his faithful companion Tonto find themselves drawn to a western army stockade facing a grave threat. The supply sergeant, Blinky Wade, has long been a source of frustration for the newly appointed Major Calvert, who believes in strict adherence to orders. Blinky, however, has a history of using his own judgment to ensure the soldiers are well-equipped, often bending the rules to do so. As tensions rise with the impending threat of an Indian attack, the stakes become higher for both the soldiers and the sergeant.