An adaptation of the short story of the same name by Lev Kassil. One of the capital’s kindergartens is attended by the children of a German specialist, Mart and August, and the children of a Soviet shock-worker engine driver, Yulik and Maika. On the eve of May 1, Yulik and Maika tell Mart and August that they will be going to the parade with their father. Mart and August want to go as well. The teacher then promises to organize a parade at the kindergarten and to invite Semyon Budyonny. The film is considered lost.