Mungo Morrison, a young mole, is expected to join his father in the esteemed gold mine of their hometown. While his friends are thrilled about working in the mine, Mungo harbors a secret ambition to become a professional football player. However, he reluctantly accepts his fate as a miner, not wanting to disappoint his father and being hindered by his small size and sensitivity to bright light. The situation takes a turn when a mysterious accident forces the mine to close, and a villainous, gold-obsessed figure known as ‘The Boss’ tries to coerce the townspeople into selling the mine to him. Defying the odds and with the support of his quirky friends, Mungo embarks on a thrilling and humorous adventure filled with action and danger, leading him to the Wild Cup football finals in Russia and an ultimate, exhilarating confrontation with ‘The Boss.’