France in 1625: The fearless Dogtanian is an ambitious young swordsman who dreams of becoming a hero and joining the legendary Muskehounds. After proving his skills and gaining their trust, he and the three Muskehounds must defend the king from the villainous Cardinal Richelieu's secret plan to seize power. Will the Cardinal win and take control, or will Dogtanian and his new friends foil the evil plan before it's too late? One for all and all for one!