Panic arises among the Allied prisoners on a Japanese ship when they learn that the ship is decoy for American submarines and is not blacked out at night. The prisoners unite and attack the Japanese sailors and officers just an American submarine surfaces and, not knowing the prisoners are aboard, prepares to torpedo the ship
Prison Ship
At the end of WW2, a Japanese freighter sails with Allied prisoners as cargo but, sensing doom, the prisoners plan to overpower their guards and capture the prison-ship.