Using newly-released (in 1994) files, concealed by the KGB in Moscow and held in archives for nearly 50 years, the programme exposes the events behind the planning and building of the Auschwitz concentration camp. Professor Gerald Fleming, a researcher into Nazi war crimes and architect Robert van Pelt, investigate these files and reveal evidence which shows how German civilian engineers and Bauhaus-trained architects deliberately colluded with the SS to plan the genocide.