S1, E4: This is the story of ordinary Russian civilians who worked to supply the military with tanks, planes, guns - whatever was necessary to win the war against the Nazis. Little is known about the planned evacuation of more than 1,500 Russian factories from out of the path of Hitler's armies. Onto flat cars, freight cars and trucks went components of factory after factory. Far to the east, beyond the Urals in Siberia and Central Asia, the factories were reassembled. There vital war materials were produced for the fighting at the front.