The Mysterious Airman is currently streaming on Tubi

The Mysterious Airman (1928)92 minAction, AdventureRating 49/100

An inventor adds new innovations to Baker Airplane Company's planes, prompting the owners of a rival company to set out to steal them.

Cast: Walter Miller, Eugenia Gilbert, Bob Walker, Eugene Burr, Dorothy Tallcot, James A. Fitzgerald, C.H. Allen

Director: Harry Revier