Rival dictators Adolf Hitler and Josef Stalin strive for victory at any cost as German and Russian soldiers clash on the Eastern Front in October 1941. Two gargantuan armies collide on battlefields west of Moscow. Calling the shots are two dictators. For the Nazis: Adolf Hitler. For the Soviets: Joseph Stalin. Both men ignore the advice of generals and insist on victory at any cost. Caught in the middle: an astonishing seven million soldiers. It is the largest battle in human history and perhaps the most consequential. By mid-October, the Soviets are on the verge of collapse, but when "General Mud" and "General Cold" arrive a few weeks later, the Nazi advance is stopped dead in its tracks.