17th century France: Young D'Artagnan leaves his home and travels to Paris with dreams of joining The Musketeers of Guard—the glamourous and gallant group of men who guard Louis XIII, the King of France. There he meets Athos, Porthos and Aramis, the three best musketeers and inseparable friends who believe with all their heart in the words 'all for one, one for all.' D'Artagnan rents an apartment above the shop of one Monsieur Bonacieux, hoping to settle into Parisian life and become a proper musketeer quickly.