D'Artagnan, on a quest to rescue the abducted Constance, runs into the mysterious Milady de Winter again. The tension between the Catholics and the Protestants finally escalates, as the king declares war — forcing the now four musketeers into battle. But as the war goes on, they are tested physically, mentally and emotionally.

D'Artagnan, un intrèpid jove, és donat per mort després d'intentar salvar una noia de ser segrestada. Quan arriba a París, intenta per tots els mitjans trobar els seus agressors. Tot i això, ignora que la seva recerca el portarà al cor d'una guerra en què està en joc el futur de França. Juntament amb Athos, Porthos i Aramis, tres valents mosqueters del rei, D'Artagnan s'enfronta a les fosques maquinacions del cardenal Richelieu i a la misteriosa Milady de Winter.

França, segle XVII. Han passat gairebé vint des de la trobada del jove D'Artagnan amb Athos, Porthos i Aramis, els tres mosqueters del rei. Després de la mort de Milady de Winter, la seva filla Justine conspira amb el cardenal Mazarino per controlar la Corona. Els mosqueters hauran d'unir les seves forces per salvar França de la seva influència maligna.

Young d'Artagnan proves his worth and teams up with three of the finest musketeers to save the Queen of France.

D' Artagnan and Porthos received the order of Richelieu, which protrudes as a powerful figure of the French church, a plot against the King of France Louis XIII. uncover. Disguised as a monk enters D' Artagnan the Church, in which the conspirators act. D' Artagnan, however, exposee and can only escape with the help of Porthos . Meanwhile the Duke of Montresant tried to force his ward to overwrite all their possessions to him, so that he can support the Flemish troops. The Duchess refused and is sent with her maid to Brescon. D' Artagnan and Porthos decide to follow the women…

Three cowboys carry on like sagebrush swashbucklers.