Two documentaries examining the hidden side of the Second World War. 'The Last Days of Adolf Hitler' analyses the mystery surrounding the exact fate of the German Fuhrer. In the violence and confusion of a devastated Berlin, was it possible that Hitler escaped? And if he took his own life, what exactly happened to the body? 'Stalin's Secret Armies' looks at the Soviet defeat of the German Army in the battle of Stalingrad. Seemingly out of nowhere, on the verge of defeat, Stalin had managed to field an army some one million men strong, something that came as a surprise not only to the Germans but to the Russians' British and American allies as well. How did Stalin keep these reinforcements secret, and why didn't he use them the year before, when Moscow itself was threatened?