N-4, a Nazi saboteur, has infiltrated the Topper Tank factory as an executive secretary. She has her men build a hideout above a superhighway so that she can drop a ramp to capture experimental models of a new tank during transit. She is finally unmasked by the Torch and Toro.; Namor has to overcome a mad scientist who is trying to create a race of evil Sub-Mariners to war against America!; The Angel is at Inferno Isle and discovers that the Temple of Fire located there is masking a secret Nazi base; The Vision comes to Earth to investigate the sacrificing of humans to the mysterious Kai-Mak, the Shark-God.; Terry and Deadline are invited to a swanky party thrown by the mayor, then must investigate the disappearance of the green diamond necklace worn by the mayor's wife.; Ka-Zar ends his battle with the Nazis, who are attempting to establish an air base in the African jungle.; The Patriot puts an end to the murderous activity of a self-confessed Bundsman, who wanted to end a play that was anti-Nazi.