The most important things in Mikołaj's life are: mom, dad, school and friends - a band of inseparable friends, without whom everything else makes no sense. So when the boy's father gets a promotion and the family has to move to the Far South, Mikołaj falls into despair. Because how can you imagine reality without best friends? Without Alceste's croissants, Ananias' glasses, Cleophas' antics - without common mischief, games and jokes? It's simply impossible. Therefore, to prevent misfortune and influence the parents' decision, Mikołajek and his team set out to search for the lost treasure. He believes that his found wealth will allow him to stay at home and stop the inevitable move.