Airboy exposes a Japanese spy substituted for a Chinese flier.; Iron Ace flies medical supplies to a group of Americans besieged in the desert by Germans and Japanese.; Black Angel foils a Nazi plot to use machines from the future to build a road across the English Channel; The Dutchman discovers a plot by the Nazis to use Japanese suicide bombers.; Bald Eagle foils a Japanese hypnotism plot; Flying fish help Skinny foil a Japanese attack on San Francisco.