The Second World War enmeshes civilians in the horrors of war on an unprecedented scale. Germany and Japan, in seeking living space, kill and enslave entire populations in the Soviet Union and Asia respectively. Initially considered barbarous, people begin to accept as fair game the aerial bombing of civilian populations, and escalating calls for retaliation bring destruction to cities including Plymouth, Hamburg and Tokyo. Civilians are also in the front line in the Siege of Leningrad, but despite hardships its orchestra manages to perform Shostakovich's Symphony No. 7. The mobilisation of civilians in the United States and elsewhere gives the allies quantitative superiority in the production of armaments, and ultimately victory. The introductory scene shows prescient footage of aerial bombing in the 1936 film Things to Come.