The film tells about the history of the revolutionary movement in Romania, about the creation of the Romanian Communist Party. 1 part. General view of the university square in Bucharest. The movement of cars along the central streets of the city. Construction of new multi-storey modern buildings. A panorama of the construction "scaffolding" at one of the construction sites where a multi-storey building is being built. City Park. Visitors enter the building of the Museum of the History of the Romanian Workers' Party (Romanian Communist Party). General view of the building of the museum, the halls of the museum with the exhibits presented in them. Museum visitors - young members of the Romanian Workers' Party on excursions in the museum: walk through the halls, get acquainted with the exhibits. Newsreel footage of 1910-1917: workers of one of the metallurgical enterprises at work, work in the oil fields; General view of the crowded demonstration in Bucharest, which was organized by the Social Democrats in connection with the execution of workers in 1916. Part 2. The exposition of the museum, where documents are presented that tell about the revolutionary situation of 1918, about the creation of the Romanian people's battalion in the south of Russia, about the general strike of 1920, about the creation of the Romanian Communist Party (Romanian Workers' Party) on May 8, 1921, about the trial in Bucharest over the Communist Party in 1924, on the economic crisis in 1929, on the 5th Congress of the Romanian Communist Party in 1931. Among the exhibits there is a memorial plaque in Lupeni, where the striking miners were shot, and a layout of the printing house. Newsreel footage of the 1920s: a peasant working the land on oxen; stacking hay on the farm of one of the landowners under the supervision of the manager. Part 3. General view of photographs and documents in one of the museum halls dedicated to the 1933 strikes in Romania. Romanian pioneers on a tour of the museum. Reconstructed interior of a prison cell where convicted workers were housed. Clothes of prisoners in the museum exposition. General view of the courthouse where the trials of convicted workers who took part in anti-government protests were held. The leader of the communist movement G. Gheorghiu-Dej spoke at one of these sessions. General views of the prison building, prison corridors, cells and the office of the chief of the prison. Part 4. Visitors in one of the halls of the Museum of the History of the Romanian Communist Party (Romanian Workers' Party), inspect the exhibits. Among the exhibits there is a cane in which illegal literature was carried, the abdication of King Carol II and the transfer of power to General I. Antonescu and his "Iron Guard", personal belongings of anti-fascist heroes, a letter to Gheorghe Gheorghiu-Dej from a concentration camp, a radio transmitter of the "Free Romania" organization, the first issue of the newspaper "Free Romania". An exposition in the museum dedicated to the armed uprising on August 23, 1944. The guide conducts an excursion for the Romanian pioneers, talks about the arrest of General I. Antonescu. Newsreel footage: 1937-1939: dispersal of a demonstration, corpses of those killed, blown up cars, the consequences of arson and pogroms in Bucharest. 1943-1944: burning German railway trains with fuel tanks blown up by members of the Resistance. 1944 years: participants in an armed uprising in the streets of Bucharest; German prisoners are leaving the bunker; the entry of Soviet troops into Bucharest; the people greet their liberators; trucks with soldiers drive through the square. Part 5. Romanian pioneers on an excursion to the Museum of the History of the Romanian Communist Party (Romanian Workers' Party) listen to the guide. Newsreel footage: 1944-1945: columns of demonstrators pass through the streets of Bucharest; a rally of many thousands in the square; military operations of Soviet troops to liberate the territory of European states from the Nazis; artillery crews are firing at the enemy. 1945: a rally of many thousands in Bucharest square, organized by the National Front; the implementation of the agrarian reform in the country: the allotment of land plots to the peasants, the first furrow; distribution of newspapers to peasants during a rally in one of the villages. 1945-1946: destroyed factories, restoration work, production processes in workshops. 1947: people in Bucharest square celebrate the establishment of popular power. 1950s: view of one of the industrial enterprises; smoke pipes of one of the metallurgical enterprises; iron smelting, work at the forging mill, production processes in the shop. NDP "FABRICA OF MASINI UNELTEIOSIF RANGHET ARAD" General view of the workshop of one of the enterprises; power lines; lifting one of the power transmission line supports; oil workers at one of the oil rigs of the field in Ploiesti; type of brown coal deposit in [Ploiesti]. Assembling tractors at the Brasov Tractor Plant. General view of the refinery in Ploiesti. Part 6. Pioneers in one of the halls of the museum, examining an exhibit - a peasant plow. Expositions about the creation of collective socialist farms in Romania. Employees of the Museum of the History of the Romanian Communist Party in the halls of the museum are preparing a new exhibition. General view of new houses in the cities of Romania. The bus passes along the street of one of the cities. General view of one of the cities with the smoking chimneys of the enterprise. Students in the classroom at school. Employees of one of the scientific institutes in the production laboratory. View of the main control panel at one of the production facilities. Inaugural meeting in Bucharest on May 8, 1961, dedicated to the 40th anniversary of the founding of the Romanian Communist Party. General view of the hall and the presidium of the meeting. Speech by the Chairman of the State Council of the Romanian People's Republic Gheorghe Gheorghiu-Dej (sync. And behind the scenes in Romanian language with voiceover.) The participants in the meeting in the hall are listening. They applaud. Among those present in the presidium N. Ceausescu (to the left of G. Gheorghiu-Dej) and others. Festive May Day demonstration in the streets of Bucharest. G. Gheorghiu-Dej welcomes the demonstrators from the government rostrum. A column of pioneers passes through the square, the pioneers release pigeons. Newsreel footage: a peasant is walking across the field, manually sowing grain; peasants on tractors cultivate the land, cultivate the planting of corn; wheat field; harvesters harvest wheat; the grain of the new harvest is pouring in; grain on the current.