Sky Bandits (1940 film)

Sky Bandits aka Renfrew of the Royal Mounted in Sky Bandits is a 1940 American film directed by Ralph Staub and released by Monogram Pictures, starring James Newill, Louise Stanley, Dewey Robinson and William Pawley. The film is a remake of the film Ghost Patrol 1936 with a musicalaction formula, similar to the format of the singing cowboy films of the era.

The messages are picked up by a gang led by a crook named Morgan William Pawley. They have forced Professor Lewis Joe De Stefani to work on a powerful ray gun invented by a scientist named Speavy Dwight Frye. The radio beam the weapon sends out disables aircraft engines. Speavy is worried that his invention is being used by the crooks, and tries to warn Renfrew, but the scientist is killed by Morgan.Madeleine Louise Stanley, the daughter of Professor Lewis, tries to help Renfrew who finds a laboratory that Morgan is operating but it is destroyed. When no one on the force believes he has discovered the secret of the lost aircraft, Renfrew volunteers to fly the next gold shipment. Madeleine stows away on board the aircraft Renfrew is piloting. Morgan and his gang are also in the air, and while the professor can bring down Renfrew with the ray gun, but he turns it, instead on Morgans aircraft. Constable Kelly then rides to Morgans hideout and, with the professors help, arrests the rest of the gang. ........

Source: Wikipedia