Fox - Tom Mix, Eva Novak, Sid Jordan, J. Farrell MacDonald, William Buckley, Adele Warner. This very top-notch western was shot on location in the Grand Canyon and features some fabulous cinematography. Tom is a tough cowboy undercover agent investigating the smuggling of Chinese laborers across the Mexican border. During his investigation, Tom comes upon a girl who has wandered away from her companions and become lost. He tries to help her but is captured by the smugglers! Little does he know that the girl's guardian is the brains behind the smuggling operation. This solid western boasts the first ever filmed aerial shots of the Grand Canyon. Recommended. Music score, from 16mm