Six-year old Anicka Cejková has moved with her parents from a village to a new Prague housing estate. For the moment, they are alone with her father, but her mother is to come home soon from hospital with the newborn Ondrej. Anicka loses her way on her first walk around the neighbourhood but is helped by a kind young woman. She is the schoolteacher Reháková, whose class 1st A Anicka soon enters. The first-formers are fond of the school, and when Anicka tells them that her mother will return from the hospital, they decide to prepare a welcome-home party for her.