Peter pays a visit to Xenia, who, taking advantage of her charm, lures Peter to bed. Dressed in a man's dress, Varya decides to talk to the emperor. Paul listens favorably to her, but he does not intend to change his order against the cavalrymen. Grand Duke Constantine is subdued by Vari's extravagant act and asks her to stay at court. Tolstoy and Lugin await punishment. In the fortress, they unexpectedly meet Stepan, who tells them his story.

Peter in the house of Xenia learns about the impending coup. He hurries to warn the emperor, but his attempt fails - Kutaisov does not understand the importance of the letter and decides to give it to Paul in the morning. D'Arnie watches Peter and tries to kill him. Palen manipulates Alexander by showing him a warrant for his arrest. Alexander agrees to participate in the conspiracy. Mongo receives a signal that a coup has begun.

Wet and wounded, Peter gets to The Mikhailovsky Castle. The forces leave him. Among the general bustle, he is found by a street girl Katerina, she feels sorry for the young officer, and she decides to help him. But when the police show up, Peter talks about a conspiracy, and they are taken away. Peter gets into the cell of Lugin and Tolstoy. Peter's injury is serious and his friends fake his death. Peter manages to get out of the walls of the fortress. Paul's murder happened.

Peter sneaks into Michael's Castle to see Alexander. Realizing that he is hopelessly late, he loses consciousness. Ksenia sends her agent to search for Peter. Soon Gregory returns - he knows where to look for the cavalryman - he and the street girl were taken by the police, they were taken to the Peter and Paul Fortress. Maria Fyodorovna is trying to find out whether Alexander knew about the impending murder.

Palen brings the wounded Peter to his house. D'Arnie learns that Peter is alive and offers to kill him. But this is impossible - Alexander himself took care of the wounded cavalryman. Ksenia, having heard the conversation, says that she will take care of the patient. Realizing who wounded Peter, she forbids D'Arny to kill him - the Master did not give such an order. Benigsen brings Palin the news that Maria Feodorovna has decided to reign.

D'Arnie informs Xenia of her departure for Austria and that she will still have to kill Peter if she does not want to lose the position she has already achieved. Perth is extremely dangerous - he has enslaved her will. Ksenia hesitates. When Peter comes to his senses, she decides to give him a choice between life and death – two bottles, one of which is medicine, the other is poison. Peter unmistakably chooses life.

D'Arnie makes another attempt to kill Peter. This is prevented only by the sudden appearance of Xenia. As he leaves, D'Arnie warns Palen to keep an eye on his daughter. After the accession of Alexander, Russia awakens from its slumber. Universal joy is not shared only by the emperor himself, immersed in himself. The conspirators wait for awards and gratitude, but Alexander sends them out, leaving only Palena at court.

Eudoxia knows that her son has not died, but has gone on a secret mission to France. After leaving his unit, Tolstoy finds Varya in Elizabeth's chambers. Varya admits that she is a prisoner of Constantine. Alexander invites Tolstoy to his house and informs him that Peter is alive and in France on his instructions. The purpose of Peter's mission is to obtain Napoleon's secret correspondence with the Austrian court. Alexander instructs Tolstoy to take Peter a package for Napoleon.

Olga brings the wounded Lugin to Spartacus' house. D' Arnie arranges a "check" on Xenia and finds out that the girl does not remember anything. Tolstoy comes to Vara to say goodbye: he leaves, but cannot take her with him. Konstantin takes Varya to his country house and begins to describe the charms of their future life together. Suddenly, Tolstoy breaks into the house of the Grand Duke, and a fight ensues. Tolstoy manages to escape with Varya.

Olga begs Lugin to flee Spartacus' house. Spartacus finds Xenia in a secret room and realizes that she knows the secret of Peter and D' Arnie. He admits that Ksenia's child is alive, and he plans to raise a superman from a baby. After putting the young woman to sleep, Spartacus informs Charles that he will feed the baby with synthesized milk.

Sibari comes to Olga's prison cell and she asks for his help. Soon, the young woman is released and brought with the child to Sibari's house. Pauline invites Peter to a masquerade in Sainte-Cloud. Meanwhile, Varya begins to suspect the true reason for Tolstoy's arrival in France. In his belongings, she finds a package with the imperial seal. Having met with Tolstoy, Peter asks him to attend a ball - a masquerade.

Sibari persuades Olga to accompany him to a masquerade in Saint-Cloud. Varya decides to follow Tolstoy and, dressed in a man's dress, follows him. But suddenly, Tolstoy disappears from her sight. In the secret room, he meets peter. Everything is ready, friends discuss the last details of the operation. Lugin and Spartacus devise a plan to assassinate Napoleon.

Taking advantage of the general bustle of the ball, Peter eludes Josephine. Tolstoy, seeing Varya in the crowd, leaves Polina and rushes after her. Sibari jealously watches Olga and Napoleon's conversation. Lugin, holding a dagger at the ready, keeps a close eye on the emperor talking to his wife. Josephine asks Napoleon to beware of Peter: he behaves very suspiciously... Xenia and D'Arnie are preparing to fulfill their master's task.

Olga refuses Sibari but asks to save the child, who is with Spartacus. Finding Mongo in Spartacus' house, Sibari realizes that Olga is his wife. Napoleon, who found Peter and Josephine in his office, demands an explanation. Peter decides to go all in. But Napoleon is amused by his confession. Returning to the masquerade, Peter notices D'Arnie and Xenia among the dancers.

On the street, Peter meets Ksenia and realizes that she really does not remember anything about her past. During a conversation with the Duke of Enghien, D'Arny invites him to lead the conspiracy. Constantine, on the instructions of Napoleon, comes to Sibari to pick up Olga and deliver her to the palace... Tolstoy and Lugin quarrel over Vari. At this time, an agent of Grand Duke Constantine brings her a letter. Young people decide to ask about its contents.

Peter intends to find out why Ksenia lost her memory and where their child is. Sibari informs Olga that her husband is rumored to be dead. Josephine appears at Sibari's house. She suspects that Olga is another mistress of Napoleon... D'Arnie introduces Xenia to the Duke of Enghien, introducing her as his sister. Ksenia asks him out on a date and leads him to the other side of the river, where the border with France passes. The Duke falls into the hands of Anatole's agents, notified by D'Arny.

Peter informs Xenia that the man she considers her husband is a murderer. Back home, Xenia tries to gently question D'Arnie. He forbids her to see Peter. Olga learns from a maid that Sibari had a conversation with Napoleon. Having decided to leave, she goes to church for confession... Varya becomes a prisoner of Spartacus. Xenia comes to Peter. His apartment is a mess: someone searched the house.

The stranger's face, who has fallen from the gunshot, rips off the hood. Olga tries to approach the wounded man, but she is intercepted by Constant. On behalf of Napoleon, he forcibly takes the girl to Saint-Cloud. Xenia, taking up arms, stands up for Peter. Napoleon again unsuccessfully tries to seduce Olga, he even decides to use force. But at the decisive moment, Josephine enters... Constant takes Olga to Sibari's house and puts a guard on her. Sibari proceeds to interrogate the Duke of Enghien.

Sitting under house arrest, Olga tries to escape. Mongo and Varya maintain a presence of mind and seek escape from the labyrinth. Xenia asks D'Arnie to talk about his past. D'Arnie, to his horror, remembers nothing. He asks about his childhood Spartacus, who raised him. Spartacus swears that he did not conduct experiments on D'Arny's memory and reports on its origin

Peter manages to arrange a secret meeting between Alexander and Napoleon, of which not even D'Arny knows. They quickly reach an understanding, and Napoleon invites Alexander to a ball in Saint-Cloud in the evening. Alexander, pleased with the meeting, expresses his gratitude to Peter. Varya and Anna Antonovna come to Olga and bring her the child Ksenia. Mongo asks them not to reveal his presence. Olga, busy thinking about her fate and the fate of the child, agrees to a meeting with Napoleon.

Napoleon signs an order pardoning the Duke of Enghien. Josephine hands the paper to Peter. Mongo reappears at Sibari's house. From Anna Antonovna, he learns that Olga has gone to the palace and is in a hurry for her. There is a fire in Spartacus' house. Varya suggests that Lugin wait until the wooden one burns out and get free. Olga tells Napoleon that she has not changed her mind: her consent to the meeting is the only way to get out of prison and talk to him.

Peter and Olga, having understood each other without words, leave the hall. They are followed by Mongo. Tolstoy lures Varya out for an evening walk and confesses his love to her. D'Arnie finds Xenia in Peter's rented apartment. She still considers D'Arnie her husband Klaus but announces to him that she loves Peter. In addition, Xenia shows D'Arny Spartacus' diary, from which D'Arnie learns that he and Pyotr Cherkasov are brothers. Napoleon gives the order to shoot the Duke of Enghien.

Olga and Peter can't talk. But time does not wait - Peter must urgently hand over a letter of pardon to the Duke of Enghien to Sibari. The owner of the tavern gives Olga gifts from an unknown sender. Mongo-Stolypin asks Anna Antonovna and Varya not to tell Olga that he is alive. Soon, a monk comes to Mongo - a member of the secret society of the Templars - and offers help in getting rid of mental anguish.

Olga sees Mongo's presence everywhere. Anna Antonovna and Varya unsuccessfully try to distract her from obsessions about her husband. But she goes to the tavern in the hope of finding out from the hostess who handed over the things and money. Varya is going to learn the real story of the baby from the house of Spartacus, she is joined by a filler. Peter understands that the murder of the duke will serve as a pretext for the termination of relations between France and Russia.

Mongo takes Peter's word that he will keep quiet about their meeting. Dreaming with Peter about the future, Olga tries to drown out her fears. Petra is also depressed by Mongo's vow of silence. Spartacus confesses to D'Arnie that he is his son. He advises D'Arnie to forget about Xenia and dedicates to his plans for the future. Meanwhile, the filler obtains information about Spartacus for Var. To learn more about the Illuminati order, Varya infiltrates an abandoned monastery library.

On the streets of Paris, Napoleon meets Olga. She is happy with Peter, but she is haunted by the ghost of her husband. Peter and Varya discuss the incidents of the last few days. They talk about the impending war, Mongo and his relationship with Olga, and the secret of the child. Varya intends to learn all about its origins. Kuragin and Adam discover that Polina, Napoleon's sister, has seduced Alexander... Spartacus tries to master the consciousness of Xenia and make her a loyal servant, instead of the murdered Charles.

Kuragin and Adam inform Peter and Olga that Grand Duke Alexander has been kidnapped! At the scene, Peter discovers an Illuminati hairpin. Mongo in the monastery is preparing to receive initiation. The Illuminati buy Luguin and bring him to the monastery, where he is met by D'Arny. Xenia manages to escape from Spartacus. But, once in the labyrinth under the monastery, she cannot find a way out. Alexander does not understand why he was kidnapped, and what trials he will face.

The beginning of great changes in the political life of Europe, the time of great generals. In the political arena, the influence of France, England and Russia is increasing. Napoleon Bonaparte is preparing for great deeds, but family battles prevent him from devoting himself to state affairs. Despite the requests of Napoleon, the Bonapartes do not intend to accept Josephine and her children. Napoleon, not wanting to participate in family dramas, goes to inspect the army.

Varya fails to prevent the duel between Peter and Tolstoy. But the end of the duel is unexpected - Cherkasov and Tolstoy become friends. Evdokia marries Olga for Mongo-Stolypin. Olga, offended by Peter, agrees to the marriage. Peter does not intend to retreat, seeing Olga's hesitation, he offers her a secret wedding. Pavel warns Alexander about the danger of friendship with the Polish prince. Elizaveta tells her husband about Czartoryski's letters. She assures Alexander that she does not find the Polish prince attractive.

Evdokia learns that Olga and Peter are going to get married in secret, and dissuades Olga. Olga informs Tolstoy and Peter that she refuses to run. Varya's mother, Aglaya, plays the cards of Varya's music teacher, the serf singer Stepan. Kuragin does not hide his feelings for Evdokia, but she is not ready to give an answer. The only thing she asks is to take Peter to Petersburg. Paul is sure that the Grand Duchess Elizabeth dishonored the royal family with her connection with Czartoryski. These thoughts offend Alexander.

Olga stops the fight between Peter and Mongo-Stolypin. Given a choice, she gives her life to Mongo. Evdokia, seeing the suffering of her son, regrets that she interfered with his happiness. Mongo-Stolypin claims to have saved Peter from the disappointments of family life. Stepan confesses his love to Varya - he ran away from the new owner only to see her. Varya thinks how to save Stepan. Czartoryski confesses to Alexander that he is in love with Elizabeth. Elizabeth hides Czartoryski's letter from Alexander.

Peter becomes close to the Grand Duke Alexander. Lugin becomes Konstantin's adjutant. Olga begins to get to know the life of the capital, Mongo pleases her with unexpected gifts. Arriving in Cherkasovo to visit Varya and Evdokia, Olga assures them that she is happy, but before leaving, she steals a medallion with a portrait of Peter. Polish conspirators, friends of Czartoryski's youth, ask Adam to assist them in kidnapping Alexander. Czartoryski does not want to participate in this.

Peter, accompanying the Grand Dukes on a walk, suddenly notices that mysterious strangers are shadowing them. Having begun their pursuit, he soon loses sight of them - in one of the alleys, strangers disappear without a trace. Konstantin persuades Alexander to continue the night walk, he liked the owner of the German tavern - Lenchen. Only in the morning the princes return to the palace. Polish conspirators - Tadeusz and Zosia are plotting the kidnapping of Grand Duke Alexander.

Peter and Lugin are conducting their own investigation. They explore the lane and find a secret underground hole leading to an inn. Having found out from the owner who else knows about the existence of the tunnel, they lie in wait for Zosya, but she manages to escape. Varya discovers that the medallion is missing, and informs Peter about it. Peter decides to have a frank conversation with Olga - he cannot forget her. Mongo-Stolypin, knowing what kind of medallion Olga wears on her chest, suffers but does not reveal the secret.

Mongo-Stolypin finds Peter coming to Olga. Olga is afraid of a scandal, but Mongo hides his jealousy and kindly invites Peter to the ball with them. At the ball, Peter confesses his love to Olga, but she, disappointed by the latest events, refuses him. Olga runs away from the ball, and Peter meets Palen's daughter, the adventuress, Xenia. Tadeusz and Zosya try to hurt Czartoryski's national feelings and force him to agree to participate in their plans.

Peter, the cavalry guards, and the Grand Dukes are trapped in a German tavern. Czartoryski tries to warn Alexander but does not have time, a fight breaks out. Konstantin, shortly before this, goes down to the backroom to Lenchen, trying to achieve reciprocity. But meets only surprise. The Grand Duke has a fit of anger, having come to his senses, he discovers the lifeless body of Lenchen nearby. Protecting Konstantin Lugin accidentally kills her husband Lenchen.

Czartoryski saves Alexander's life. Tadeusz is killed. Zoya manages to escape. When the police appear, Peter takes away the Grand Dukes, Tolstoy and Lugin remain with the wounded Okhotnikov. Thanks to Peter, the princes manage to evade persecution. When Peter returns to the tavern, his friends are no longer there - they were taken to the police station. Palen reports to Pavel about the night incident in the city.

The surviving Polish conspirators seek to hide, Zosia threatens the cavalry guards and Czartoryski to avenge their murdered brother. To avoid publicity, Peter takes the Grand Dukes away. Lugin and Tolstoy remain with the wounded Okhotnikov. Mongo-Stolypin is cold with Olga. To avoid suffering, he offers her free family relationships - such as many St. Petersburg couples have. Olga is offended and upset. Palen reports to Pavel about the events of the night.

Peter asks Alexander for his comrades in trouble. Alexander promises to help, but does not believe in a successful outcome of the case - Pavel is adamant. Olga decides to break off relations with Peter, she writes him a letter and gives it to the batsman. The cavalry guards are transferred to the Peter and Paul Fortress, where they must await punishment. Arriving in Cherkasovo, Aglaya complains of her loneliness, she wants to take Varya to St. Petersburg. Pahlen and D'Arny discuss the possibility of plotting against Paul and drawing Alexander to him.

Peter, having received the letter, penetrates the house of Mongo-Stolypin for a decisive conversation with Olga. Olga chases him away. Suddenly, Peter learns about the conspiracy against Paul, he cannot help but warn Olga that her husband is involved in this. Mongo, having been a bystander to the transfer of the letter to Peter, recognizes a familiar envelope. He further strengthens his suspicions of his wife's infidelity and decides to join the Masonic order.