Movies: Fifth column

Broadway gamblers stumble across a plan by Nazi saboteurs to blow up an American battleship....

Japanese communists attempt to take over Hawaii and only Dr. Jim Ransom can stop them....

Javier Navarro, a Falangist, is ordered to infiltrate Republican Madrid to deliver a message to a member of the Fifth Column....

England, 1940, during World War II. An MI5 officer, codenamed Jack King, infiltrates a network of conspirators, a British fifth column sympathetic to Nazi Germany, in order to control the organization and destroy it in the event of a German invasion....