The Flaming Duo must deal with Nazi treachery that slightly alters a message of America's help to protect Mecca to an order for the U.S. to destroy the holy city.; The four freedoms come under attack when the Red Skull, deciding that the war in Germany is lost, has post-war plans to Nazify America!; An earthquake rouses Namor to travel to Australia, where he is captured by the Japanese, who show him a tunnel under the ocean floor that stretches from Singapore to Australia, and which they intend to use for invasion.; A British Commando unit places the plans for the Second Front into the hands of the Destroyer, and his job is to get it to the French Underground. What the Nazis don't know is that the plans are false and designed to trap the Nazis themselves!