No es fácil ser un superhéroe adolescente: Alan Crystal tiene que asistir a clase, salir con su novia y amigos... y al mismo tiempo debe luchar contra Opacus, un bandido obsesionado con la idea de capturarle a él para completar un experimento que le otorgará el poder definitivo para controlar nuestro fabuloso mundo retro-fu turista...

France, 17th century, under the reign of Louis XIII. Dogtanian is an impetuous and innocent peasant from Gascony, as well as a skilled swordsman, who travels to Paris with the purpose of making his dream come true: to join the Corps of Muskehounds of the Royal Guard.