London, Spring 1941. Columns of Wehrmacht soldiers make their way along the Mall, swastikas hang from Buckingham Palace and Junkers scream low overhead-a potent symbol of Nazi victory. The Germans have conquered the capital. Churchill and his government have gone into hiding... It's a chilling picture: What would the Nazis have done if they had conquered Britain? Filmed in England and using Allied and German documents, blueprints, and archive film, this two-part documentary-covering both...