GRAND CANYON TRAIL

A cowboy's partners invest money in a worthless mine. The engineer of the company is crooked and tries to swindle Roy out of his mine because he suspects there's much more silver to be found, if you know where to look. The mother lode must be located in order to save the company. (This is the first appearance of the Riders of the Purple Sage who replaced the Sons of the Pioneers. In between the action, Roy and the Riders perform a few songs).