In the premiere episode of The Musketeers , titled the story begins with young d'Artagnan and his father traveling to Paris to petition King Louis XIII . Their journey turns tragic when they are attacked at an inn by men masquerading as Musketeers; d'Artagnan's father is murdered, and with his dying breath, he names "Athos" as his killer.
Cardinal Richelieu is using the Red Guard to pose as Musketeers to discredit the regiment and expand his own political power. Watch The Musketeers S01E01 Friends and Enemies...
Driven by a quest for vengeance, d'Artagnan arrives in Paris and immediately challenges the real to a duel. However, the confrontation is cut short when the King’s guards arrest Athos for a string of highway robberies and murders he didn't commit. While Athos faces a death sentence, his comrades Porthos and Aramis work to prove his innocence. The investigation reveals a deeper conspiracy: In the premiere episode of The Musketeers ,