The film documents the lives of the people in Ozyorsk , Chelyabinsk Oblast , code named " City 40 " . The town is near Mayak , the birthplace of the Soviet Union 's nuclear weapons program as well as the location of the Kyshtym disaster . The people living there believe that they are saving the world . They are trapped by barbed wire fences
Kyshtym disaster
Kyshtym disaster
City 40 (film)