The action takes place in one of the Odessa yards, residents of which learn about car racing - mini rally "Cup of estuaries", which will be held in the village Severynivka. Three grandfathers decide to participate in the race on a retro car "Moskvich". However, riders fall victim to the plot of one of the residents of the yard - the director of a scrap metal receiving point, which in the thirst for profit dreams of taking possession of the unique "Muscovite". Grandparents' grandchildren help to unravel the plot. With their help, courageous grandfathers start racing and in the difficult struggle to win, winning the grand prize.