Hank Davis, foreman on a huge dam project, enlists the aid of his two flyer friends when a sinister figure known as The Black Ace leads his Mystery Squadron of masked pilots in an attempt to destroy the dam.

• DirectorColbert Clark
• Release21 December 1933
• Genre
  Action / Mystery
• Duration3h 47m
• Budget?
• Revenue?
• Rate
  

  6.0
  1 reviews
• Productions

  Mascot Pictures