In the summer of 1942, Shostakovich's Seventh Symphony was brought to the Radio House, but the orchestra didn't have enough musicians to perform it. However, on August 9, when Hitler planned to seize Leningrad, people heard the Symphony live.[4] This film is a depiction of the events leading up to the day of the historic performance, which was broadcast nationwide all over the Soviet Union on radio, and led up to the smash success of the work at home and abroad.