In 17th Century Paris, young, naïve and energetic D'Artagnan leaves home to seek his fortune as a swordsman. He soon makes friends with the three musketeers: world-weary Athos, comically arrogant Porthos and chivalric Aramis. Their enemy is aristocratic schemer Cardinal Richelieu, who plots to prove the infidelity of the Queen to King Louis XIII to increase his own power.