Submarine Raider plot
"A Girl On A Sub Plays Desperate Hide-And-Seek With The Japs... To Save PEARL HARBOR!"
On December 6, 1941, Captain Yamanada of the Japanese aircraft carrier Hiranamu gives orders for an attack on Pearl Harbor. His ship encounters an American yacht and sinks it. Sue Curry, the lone survivor, is rescued by the American submarine "the Sea Serpent". Commander Chris Warren overhears her story and warns Pearl Harbor by radio. Yamanada intercepts this signal and orders his son, who is in the air, to attack the submarine. He fails in his attempt and the next morning the submarine crew hears that Pearl Harbor has been bombed. They devise a plan to destroy the Japanese aircraft carrier by revealing their location.