The story follows a ten-year period before WW2 in a fictional town of Gradina, Serbia and its residents, which went through the turbulent events like the Great Depression and the rise of fascism. But the most important segment of the story revolves around rivalry between two city's football clubs - Radnicki and Gradjanski.
A group of children build a loft in an abandoned yard, but instead of pigeons, a man and his two sons move into it. At first, boys try to get rid of the unwanted intruders, but eventually they befriend with them. However, the municipality sends their men to tear down the illegal housing, but the children decide to stop them at all costs.
A boy finds Pupin in his house and he gives him life changing advice.
