Eddie Rickenbacker was a man of adventure, World War I fighter ace, racing car driver, military advisor and a pioneer of air transportation.
Rickenbacker's hero, Ace Drummond, is an airborne 'G-Man'. In this serial, he travels to Mongolia. His mission is to find out why the villain of the piece, known as 'The Dragon', is preventing International Airways from building an airport.
Meanwhile Peggy Trainor is searching for her father, who has disappeared. The two meet to solve the mysteries.