At the beginning of the 16th century, a bitter struggle raged between Spain and France. The French laid siege to a fortress, and the Spanish were under increasing pressure. Then a witty, incredibly strong Italian mercenary, serving in the Spanish army, appeared and helped them achieve victory over the besiegers. The liberation battle is depicted here in a very funny and lively manner. The tricks used by this "steamroller" of a mercenary have already delighted cinema audiences...