The Musketeers must risk everything to save France from Rochefort's treacherous plan. While Porthos seeks to lure the Spanish spymaster to Paris to prove Rochefort's betrayal to the King, Athos and d'Artagnan must save Constance from certain death. However will they be able to protect Aramis and the Queen before Rochefort gets to them first? The fate of France and their closest comrades lies in the Musketeers' hands.