AllMovie

The year is 1942, America is at war with Japan, and American reporters Clark Kent and Lois Lane are under house arrest in a Yokohama hotel. Unbeknownst to Lois, Clark manages to elude his captors every night at 11 PM--at which time he assumes his true identity as Superman in order to commit various acts of sabotage against the enemy. Certain that the Americans are responsible for this michief, the Japanese High Command sentences Lois to death by firing squad if another ship or munitions plant is destroyed--and now Superman must figure out how to rescue Lois while simulatenously accomplishing his deadly mission.