Poland - The plot dedicated to the 30th anniversary of the liberation of Warsaw. Personnel chronicles: the ruined city. Refugees are returning to the city. Clearing the streets, the restoration of the city. Hungary - The plot dedicated to the 30th anniversary of the liberation of Budapest. Newsreels 1945: The battle of Budapest. Hungary - The story of the construction of the first Hungarian nuclear power plant. Personnel Chronicle: Winter 1974, the start of excavation, construction of service building. Winter 1975 - the construction of the main building of the power plant. GDR - Construction of a nuclear power plant in Lubmin, near Greifswald, with the help of experts from the Soviet Union and Hungary.