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

Superman battles a criminal mastermind and his robot army.

When things go wrong at the circus, it's up to Superman to stop the escaped animals.

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

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!

Superman discovers a secret Nazi base in the jungle.

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 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.