This 13 chapter serial is based on the comic strip character Ace Drummond created by Eddie Rickenbacker. Ace is a 'G-Man of the sky' working out of Washington D.C. He is sent to Mongolia to find out why a mysterious villain known only as 'The Dragon' is trying to prevent the newly formed International Airways from setting up an airport there. Ace meets Peggy Trainor (Jean Rogers) who is searching for her archaeologist father who has disappeared. Together they search for answers to the puzzles.
as Ace Drummond
as Peggy Trainor
as Jerry
as Billy Meredith
as Kai-Chek
as The Grand Lama
as Henchman Ivan
as William Meredith, Sr.
as Winston
as Henry Kee
as Chang-Ho
as Johnny Wong, Radio Operator
as Dr. Trainor
as Bauer
as Paul Wyckoff
