Speed Gibson of the International Secret Police is a radio adventure series written by Virginia Cooke that follows the exploits of 15-year-old pilot Speed Gibson. He becomes a member of the International Secret Police through his uncle Clint Barlow and encounters fascinating adventures that involve shortwave radio, aviation, and crime-fighting missions. The series is divided into two storylines - "The Menace of the Octopus," where Speed is inducted into the International Secret Police and pursues the Octopus and his gang in the Orient; and "Speed Gibson and the Atlantian Syndicate," which sees him continue his adventures in Africa.

The show aired weekly from January 2, 1937, to May 25, 1940, and had a total of 178 episodes, each lasting approximately fifteen minutes. It is believed that Elliott Lewis may have starred in the title role, though this cannot be confirmed. Other notable actors included Howard McNear as uncle Clint Barlow and John Gibson as sidekick Barney Dunlap. The opening theme featured the drone of an airplane and the voice of an air traffic controller urgently calling, "Ceiling zero… ceiling zero… ceiling zero!" The series is well-remembered for having all 178 episodes survive intact.

Sources: wikipedia.org, otrcat.com