The second of a two-part film adaptation of Alexandre Dumas' novel. Constance is kidnapped before D'Artagnan's eyes. In a frantic quest to save her, the young musketeer is forced to join forces with the mysterious Milady de Winter. But as war is declared and Athos, Porthos and Aramis have already joined the front, a terrible secret from the past shatters all old alliances. As the King falls further and further under the control of Cardinal Richelieu, D'Artagnan and the Musketeers are the last bastions before chaos. But, drawn into a plot that threatens to put the country to fire and sword, fate presents them with a terrible choice: will they have to sacrifice those they love to complete their mission?
D'Artagnan, a spirited young Gascon, is left for dead after trying to save a noblewoman from being kidnapped. Once in Paris, he tries by all means to find his attackers, unaware that his quest will lead him to the very heart of a war where the future of France is at stake. Aided by King's Musketeers Athos, Porthos and Aramis, he faces the machinations of villainous Cardinal Richelieu and Milady de Winter, while falling in love with Constance, the Queen's confidante.
France, 17th century, under the reign of Louis XIII. Dogtanian is an impetuous and innocent peasant from Gascony, as well as a skilled swordsman, who travels to Paris with the purpose of making his dream come true: to join the Corps of Muskehounds of the Royal Guard.
After the deaths of d'Artagnan, Athos, Porthos and Aramis the Queen Anna of Austria has to ask for help of the heroes' sons. They, however, cannot fulfill her request on their own. The original musketeers have to literally return to live and embark on a new adventure.
Years have passed since the Three Musketeers, Aramis, Athos and Porthos, have fought together with their friend, D'Artagnan. But with the tyrannical King Louis using his power to wreak havoc in the kingdom while his twin brother, Philippe, remains imprisoned, the Musketeers reunite to abduct Louis and replace him with Philippe.
The hot-headed young D'Artagnan along with three former legendary but now down on their luck Musketeers must unite and defeat a beautiful double agent and her villainous employer from seizing the French throne and engulfing Europe in war.