Sky High

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!

• 
  Lynn Reynolds
• 
  George Webster

• 
  Tom Mix
  Grant Newbury
• 
  J. Farrell MacDonald
  Jim Frazer (as J. Farrel MacDonald)
• 
  Eva Novak
  Estelle Halloway - his ward
• 
  Sid Jordan
  Andrew Bates (as Sidney Jordan)
• 
  William Buckley
  Victor Castle
• 
  Adele Warner
  Marguerite Castle
• 
  Pat Chrisman
  Pasquale - Henchman (uncredited)
• 
  Wynn Mace
  Patterson - Henchman (uncredited)
• 
  Art Mix
  Man Who Starts Saloon Fight (uncredited)
• 
  Harry Tenbrook
  Bartender (uncredited)