Superman vs. Japanese spies hijacking a new super-bomber.

Superman's reputation is tarnished when a crook begins committing crimes in a Superman costume.

Using Clark Kent as a cover, Superman travels to Japan as a saboteur during the war.

Superman has to thwart wartime saboteurs tampering with things at the Metropolis Munitions Plant...who have captured Lois Lane and loaded her into a torpedo!

Egyptologists are attacked by mummies, drawing the attention of Superman.

Superman discovers a secret Nazi base in the jungle.

Superman has to save Lois Lane from a cult of hawk-people in an homage to Edgar Rice Burroughs's "At the Earth's Core".

A double agent trying to deliver information to Washington, D.C. is chased by Nazi operatives.