Some of the biggest and deadliest weapons built by the Nazis changed the face of modern warfare.

During the brutal Battle of Berlin in 1945, 100,000 German civilians fight to the death and 6,000 commit suicide. How did the Nazis motivate ordinary civilians to fight even when defeat was inevitable? The answer is propaganda, and in Dr Josef Goebbels, Adolf Hitler found a genius of mind-manipulation. This episode reveals the evidence left behind by the Nazi propaganda machine, monuments to the sinister but brilliant brain-washing of an entire nation.