Episode: 1x01 | Airdate: Jan 19, 2014
The brightest and best musketeers of the King's Regiment, Athos, Porthos and Aramis, are dispatched by Captain Treville to find a missing musketeer carrying important letters on behalf of King Louis. But Cardinal Richelieu has plans to increase his political power and seeks to sabotage the good reputation of the musketeers.
Meanwhile, d'Artagnan travels from his family farm in Gascony to Paris to petition the king, but his peaceful plans are turned upside down when he is forced to find the musketeers and seek vengeance for the brutal murder of a loved one.
Will d'Artagnan bring the murderer to justice and can the musketeers protect king and country? Or will the cardinal triumph with the help of the beautiful and dangerous Milady?
Episode: 1x02 | Airdate: Jan 26, 2014
Notorious criminal Vadim seeks to make life unbearable for the authorities that have imprisoned him. When he engineers a full-scale riot it falls to the Musketeers to protect those whom he seeks to destroy. Will the Musketeers discover his plan in time and stop him from endangering the monarchy? And can the inexperienced d'Artagnan prove he is worthy of becoming a Musketeer or do his loyalties lie elsewhere?
Episode: 1x03 | Airdate: Feb 2, 2014
The Musketeers are dispatched to Le Havre to collect the infamous merchant trader and explorer Bonnaire and bring him back to Paris to be reprimanded for breaking France's trade treaty. This straightforward mission soon descends into a treacherous battle, as they must defeat Bonnaire's surprising number of enemies.
Athos is forced to confront his past, which threatens to engulf him. Will he overcome his demons and help the Musketeers safely return to Paris, or will Bonnaire's enemies get the better of them?
Episode: 1x04 | Airdate: Feb 9, 2014
When Aramis's old friend Marsac, a former musketeer, unexpectedly returns to Paris, the musketeers are thrown into turmoil, fully aware that they should report him for desertion. His appearance coincides with the royal visit of the king's beloved sister and her husband, the Duke of Savoy, whom the musketeers must protect.
Marsac believes he finally knows the truth behind the infamous massacre which killed his troop, and wants Aramis's help to prove it. Despite their misgivings, will the musketeers help and can they prevent Marsac exacting his own revenge?
Episode: 1x05 | Airdate: Feb 23, 2014
Porthos wakes up from his drunken birthday celebrations with no memory of the night before. This would not be unusual, but for the dead body by his side...
After being unjustly sentenced to death, he is abducted to the dangerous Court of Miracles, the streets of his childhood. In order to save him, the Musketeers must prove his innocence. Their investigations uncover a tangled web of divided loyalties and greed, and they risk their lives to infiltrate the unruly slums of the Court of Miracles before it is too late.
Episode: 1x06 | Airdate: Mar 2, 2014
Aramis and d'Artagnan are thwarted in their task to transport a young woman and her baby from a village outside Paris to the palace when armed men abduct her baby. They must find out who she is exactly and why anyone would go to such lengths to kidnap her son.
Meanwhile, the king's royal hunting party is disrupted by the sudden appearance of Louis' banished mother, Marie de Medici, seeking royal protection from an unknown assassin. The Musketeers must fight to protect both mother and baby while also loyally defending the throne.
Episode: 1x07 | Airdate: Mar 9, 2014
Following the tragic death of a young girl underneath the royal carriage, The Musketeers' investigations into her missing friend lead them into the world of a highborn and enlightened woman, Ninon, who really gets under Athos' skin. The Musketeers are forced to put aside their animosity towards the Cardinal when his life is placed in danger, and rescue this extraordinary woman.
Episode: 1x08 | Airdate: Mar 16, 2014
The Musketeers are tasked with bringing the fearsome Labarge, a regional intendant under arrest for the murder of two Musketeers, to Paris. The Red Guards, resentful of the Musketeers' handling of him, initiate a vicious fight between the two regiments. Fed up with the disruptive rivalry between the Musketeers and the Red Guards, the king calls a contest between them to settle which one is stronger once and for all. D'Artagnan is determined to be chosen to fight so that he can prove himself worthy to be a Musketeer. But first he has to learn to control his impetuous nature and to fight with his head, not his heart.
Episode: 1x09 | Airdate: Mar 23, 2014
Queen Anne's taking of the waters is cut short when her life is put in mortal danger. Meanwhile Louis dines with wealthy German banker Count Mellendorf, who is looking for a French match for his beautiful daughter.
As the Musketeers try to spirit Anne back to Paris, they're forced to seek refuge in a fortified convent, where Aramis comes face to face with his past. Under siege and fearful for their lives, the mother superior and nuns help the Musketeers to defend the convent, but what will they do once they run out of ammunition?
Episode: 1x10 | Airdate: Mar 30, 2014
The series reaches its thrilling climax as an unexpected rift between the Musketeers threatens to blow them apart. Athos takes a woman hostage in the square, and the Musketeers are amazed to discover he is threatening none other than Milady. Athos is furious when he finds out that D'Artagnan knows her, testing their friendship to its limits. D'Artagnan is forced to do the unthinkable and seeks Milady's help.
The cardinal, fearful the Musketeers will prove he masterminded the attempt on the queen's life, compels Milady to kill them by any means. Milady has no choice but to revisit her dark past, and in doing so puts Constance into danger. The Musketeers must use all their wits and courage to outsmart her and save Constance. Can the Musketeers restore their team and bring Milady and the cardinal to justice? Or will Milady finally wreak her revenge?
Episode: 2x01 | Airdate: Jan 2, 2015
The Musketeers are sent to retrieve the Comte de Rochefort, the Cardinal's man in Madrid, who has escaped from a Spanish prison and brings news that the chief author of France's military strategy against Spain, General De Foix, has been captured.
The Musketeers must join forces with Rochefort to rescue De Foix before this critical information falls into the wrong hands, but can Rochefort be trusted, and will the Musketeers succeed against the traps laid for them?
Episode: 2x02 | Airdate: Jan 9, 2015
King Louis demands to experience the life of his carefree subjects, but his night of fun quickly comes to an end when he and d'Artagnan are mistaken for commoners and kidnapped by the notorious criminal Lemaitre to be sold to Spain as slaves.
The musketeers must find and rescue d'Artagnan and the king. Can they save Louis from mortal danger and will they return him to the palace in time for the dauphin's christening?
Meanwhile Rochefort uses the king's absence to become closer to Queen Anne.
Episode: 2x03 | Airdate: Jan 16, 2015
When a Spanish general, Tariq Alaman, offers to hand over the formula of a unique and deadly gunpowder in exchange for help rescuing his kidnapped daughter, the Musketeers find themselves tangled in a complex web of political trades with the Spanish. Their mission is further complicated when Porthos is captured by Spanish agents.
Meanwhile, when the dauphin becomes seriously ill, Constance takes matters into her own hands and risks everything to save his life.
Episode: 2x04 | Airdate: Jan 30, 2015
The Musketeers investigate Emilie of Duras, a woman claiming to have visions from God which instruct her to lead her thousands of followers into war with Spain. As word of Emilie's visions triggers violent anti-Spanish riots, Aramis is sent to discredit her before she pushes France into an ill-timed war with Spain.
Meanwhile Rochefort continues to clash with Spanish Ambassador Perales. He resorts to blackmail and murder to resolve the problem.
Episode: 2x05 | Airdate: Feb 13, 2015
When Athos is kidnapped and taken back to his estate of Pinon, the Musketeers go in search of him. They find themselves in the middle of a battle against Baron Renard, who is shocked by Athos' decision to reject his nobility and is determined to seize the land for himself.
As the Musketeers train the people of Pinon in combat and defend them against multiple attacks, Athos is forced to confront his past when he encounters an old friend whose life was ruined by his actions years ago.
Episode: 2x06 | Airdate: Feb 20, 2015
Renowned astronomer Marmion gathers the royal household to his impressive observatory in a transformed old fort to watch a solar eclipse. The Musketeers and Rochefort escort them but could never have predicted the twist in fate that ensues and the impossible choices that must be made.
Who is Marmion really and what is his game? The Musketeers are forced into the fight of their lives with dramatic consequences. Will they accept Milady's help despite their mistrust of her? It might be their only chance to save the king, queen and themselves.
Episode: 2x07 | Airdate: Feb 27, 2015
The king's cousin is ambushed while under Musketeer escort as she travels from Mantua to Sweden to make a political marriage that will be advantageous to France. The Musketeers must quickly discover who is targeting her to keep both her and the alliance between countries protected.
However, it emerges that other important figures at court also appear to be in danger. Who is the killer and could he already be inside the palace walls?
Episode: 2x08 | Airdate: Mar 6, 2015
Porthos uncovers the truth about his parentage and demands answers from his new-found father. As he learns more about his past, Porthos questions his place in the Musketeers regiment. However, the Musketeers have suspicions about Porthos' new family, wondering whether he should trust them. Can they save Porthos from the dangers that lie ahead, and where do his true loyalties lie?
Episode: 2x09 | Airdate: Mar 20, 2015
The Musketeers must put their lives on the line when the queen is accused of treason. They have no choice but to steal her away from the palace to safety while they search for evidence to prove that Rochefort is a Spanish spy. However, it soon transpires that nobody is safe from Rochefort's grasp, not even the king.
Episode: 2x10 | Airdate: Mar 27, 2015
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.
Episode: 3x01 | Airdate: May 28, 2016
On the Spanish front, Athos, Porthos, and D'Artagnan find themselves outgunned when a supply train bearing gunpowder doesn't come through. They go to investigate and discover that a new player, Lucien Grimaud, is responsible. Meanwhile, Minister Treville and Constance deal with the new leader of the Red Guards, Louis' stepbrother the Marquis de Feron.
Episode: 3x02 | Airdate: Jun 11, 2016
Feron and Grimaud set out to turn the people of Paris against Louis by stealing grain and framing the war refugees. When D'Artagnan intervenes, he is arrested by the Red Guard. Meanwhile, Athos makes the acquaintance of a female refugee and revolutionary, and Anne receives word that Aramis has returned to Paris.
Episode: 3x03 | Airdate: Jun 20, 2016
Louis has the Musketeers bring his traitorous brother Gaston to Paris, despite the latter's exile, and extends the hand of friendship to the relative who tried to overthrow him. Meanwhile, the veterans of Paris grow restless when Louis refuses to pay their pensions. When Gaston loses a purse containing incriminating letters, Feron sees an opportunity to benefit himself.
Episode: 3x04 | Airdate: Jun 25, 2016
On a visit by the Queen of England, her jewels are stolen. By the purest of coincidence, the Musketeers find Emile Bonnaire in the city at the same time. Also, Aramis meets a friend from childhood who's about to be married.
Episode: 3x05 | Airdate: Jul 3, 2016
Lucien and Feron stage a prison breakout to cover Lucien's theft of the king's gold reserve. D'Artagnan befriends an insane prisoner who thinks that he's Louis, while Aramis and Constance discover that an imprisoned locksmith's wife is being held as leverage to force the man to assist in the robbery.
Episode: 3x06 | Airdate: Jul 9, 2016
Lucien sets out to kill the Musketeers before they interfere further in his plans. He launches an attack on Athos and sets a trap for Aramis, Porthos, and D'Artagnan. Meanwhile, Louis goes on a pilgrimage, while Feron is forced to choose sides.
Episode: 3x07 | Airdate: Jul 16, 2016
The Musketeers pursue Lucien and find themselves in a camp of women waiting for their husbands to return from the war. Meanwhile, Anne begs Louis' forgiveness for the sake of France.
Episode: 3x08 | Airdate: Jul 23, 2016
Lucien abducts Aramis, who is secretly conducting peace negotiations for Anne with her brother Philip, as bait in a trap to kill the Musketeers. Meanwhile, Milady returns from England to be with Athos, and Sylvie is framed for crimes against the Crown.
Episode: 3x09 | Airdate: Jul 30, 2016
As Lucien leads the armies of Lorraine to the gates of Paris, Treville is forced to take extreme measures when he unexpectedly finds himself in a position of power.
Episode: 3x10 | Airdate: Aug 1, 2016
Lucien launches one final attack on the Musketeers, and only with love and courage will they stand true... or die.