Adaptación de la primera parte de la archifamosa novela de Dumas. En esta versión los elementos cómicos predominan sobre los dramáticos. D'Artagnan, con la ayuda de sus amigos Athos, Porthos y Aramis y su incondicional Planchet, tendrá que defender la reputación de la reina, la española Ana de Austria, frente a las turbias intrigas del Cardenal Richelieu y sus colaboradores, Rochefort y la peligrosísima Milady de Winter.
Thanks to a bit of string-pulling by his aunt, Jean du Bois d'Ombelles, a young recruit who has blue blood in his veins, hopes to go through a nice and comfortable military service. Unfortunately he becomes Corporal Bourrache's pet aversion. Nevertheless, against all expectations, Jean ends up taking a liking for military life.
Jean is a ten-year-old boy who runs away from boarding school because he thinks he is the cause of his parents' marital breakup. A famous opera singer offers him shelter in her home.