Sussex, England, 1938. Shortly before the outbreak of World War II, Thomasina and Martha Hanbury, two ingenious sisters, create LOLA, a miraculous machine.

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. But who was he? A single person or several?

Romm pulls out all the stops in its selection of documentary material to draw the viewer not only into absolute horror about fascism and nazism in the 1920s–1940s Europe, but also to a firm conviction that nothing of the sort should be allowed to happen again anywhere in the world.

A propaganda film shown at New Party political meetings.