The movie "The Mystery Squadron" follows the story of two stunt flyers, Fred Cromell and Bill "Jellybean" Cook, who are hired to protect a dam from air raids by the mysterious Black Ace and his squadron. As the attacks continue, the workers become increasingly disturbed and mistakenly identify Fred and Bill as members of the criminal air armada. The two flyers must then escape from a vigilante lynch mob and continue their search to unmask the Black Ace, a quest that takes them through 12 chapters.
The Mystery Squadron
A foreman of a massive dam project teams up with his aerial allies to outwit the cunning Black Ace, the enigmatic leader of a masked flying squadron, who aims to sabotage the dam.