During the reign of France's King Louis XIII, D'Artagnan and three musketeers unite to defend the honor of Anne of Austria against the plots of Cardinal Richelieu.
An adaptation of Alexandre Dumas's story of D'Artagnan, a young man in seventeenth-century France who initially quarrels with, then befriends three musketeers and joins them in trying to outwit the enemies of the king and queen.