A government agent investigates a ring that is smuggling Chinese aliens across the border from Mexico. His investigation takes him to the Grand Canyon. He finds a dazed girl wandering around who has become separated from her companions and is lost. He and the girl are soon found by her companions - the smuggling ring!
Tom Mix
as Grant Newbury
J. Farrell MacDonald
as Jim Frazer (as J. Farrel MacDonald)
Eva Novak
as Estelle Halloway - his ward
Sid Jordan
as Andrew Bates (as Sidney Jordan)
William Buckley
as Victor Castle
Adele Warner
as Marguerite Castle
Pat Chrisman
as Pasquale - Henchman (uncredited)
Wynn Mace
as Patterson - Henchman (uncredited)
Art Mix
as Man Who Starts Saloon Fight (uncredited)
Harry Tenbrook
as Bartender (uncredited)
