In this feature version of the "Ace Drummond" serial, Ace (John King) battles a mysterious archvillain to establish an international airplane service. Jean Rogers, Noah Beery Jr., Guy Bates Post. Chang-Ho: Arthur Loft. Kai-Chek: Chester Gan. Billy: Jackie Morrow. Ivan: Lon Chaney Jr.
Noah Beery Jr., Jean Rogers, Guy Bates Post, John King
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