第 3 季 共 10 集
播出时间：2016年5月29日
第 1 集 Spoils of War
播出时间：2016年5月29日
Athos, Porthos and D'Artagnan are fighting on the battlefront while Aramis has trouble living in contemplation as a monk. The Musketeers' search for missing gunpowder lead them to follow bandits to Aramis' monastery, where circumstance force them to collaborate to save the monastery's children and brothers. Aramis' finally accepts his true calling as a Musketeer and rejoins his brothers-in-arms in Paris.
第 2 集 The Hunger
播出时间：2016年6月5日
The corrupt Governor of Paris conspires with the Duke de Beaufort, primary provider of food for Paris, to stage a robbery of the city's granary and pin it on the refugees, only to later sell the stolen grain back to the King at an inflated price. D'Artagnan is taken captive along with the rioting refugees, and the other Musketeers (along with D'Artagnan's wife Constance, now in charge of the Musketeer garrison) must rescue them from the hands of the Red Guard before they are executed.
第 3 集 Brother in Arms
播出时间：2016年6月12日
King Louis tasks the Musketeers with bringing his exiled brother, the Duke of Orléans, back to Paris in order to mend bridges. On the way, the Duke is robbed of dangerous letters which could destroy Orléans. The Duke informs the corrupt Governor of this, and the Governor's Red Guard must race the Musketeers in the hunt for the thief.
第 4 集 The Queen's Diamonds
播出时间：2016年6月19日
Bonnaire is back, and the Musketeers need him to save the future of the English Crown.
第 5 集 To Play the King
播出时间：2016年6月26日
The Musketeers battle to restore order in Paris after Grimaud and Feron stage an ambitious Châtelet breakout, setting free a lunatic with murderous designs on the Louvre.
第 6 集 Death of a Hero
播出时间：2016年7月3日
It's the day of reckoning, as Grimaud vows to kill the Musketeers in a series of savage co-ordinated attacks and puts Feron to the ultimate test in his bid for power. The furious battle for survival sparks a series of revelations that threaten to destroy Paris. Before the day is out, a hero falls, there’s a traitor on the rise and the Musketeers will be changed forever.
第 7 集 Fool's Gold
播出时间：2016年7月10日
Chasing Grimaud, the Musketeers make a troubling discovery in a village ruled by women.
第 8 集 Prisoners of War
播出时间：2016年7月17日
The Queen's reputation is on the line after Grimaud kidnaps Aramis.
第 9 集 The Prize
播出时间：2016年7月24日
When death strikes the Louvre, Treville takes controversial steps to protect the Dauphin from the unholy alliance of Grimaud, Gaston and the Duke of Lorraine. His secretive tactics isolate the Queen and threaten to drive even his loyal Musketeers apart.
第 10 集 We Are the Garrison
播出时间：2016年7月31日
