For you history buffs out there, this documentary explores the secretive and strange arms race between Britain and the Nazis during WWII. Winston Churchill himself set-up a secret clandestine research institute, dedicated to coming up with super weapons that would give troops the edge in battle. He christened the department Military Defence 1 but it quickly becomes known as Churchill’s toyshop. This one-off special uses rare archive footage along with interviews to tell the story of some of the most fantastic and improbable weapons ever created.