April 1945. The Soviets have gained control of Poland and have crossed the borders of Germany. The Nazis begin a desperate last stand, drafting in the old and the young to defend the capital of the Third Reich: Berlin. What follows is the greatest artillery barrage in history, including over a million Red Army troops and thousands of tanks. Rare newsreel and amateur footage, newly colorized, take us inside Hitler's crumbling empire and onto the front lines of the firefight for the streets of Berlin, a battle that will determine the fate of World War II.