Braquo

Suspected of abusing a prisoner during an interrogation, Major Rossi Vogel is interviewed by the IGS. Placed in custody, he takes the only path that seems open to him.

To avenge the insult done to their leader, buried without honors, Eddy, Theo, Walter and Roxane cross the yellow line. They remove Benaissa for questioning, very muscular, and manage to snatch the name of his accomplice, but accidentally kills Theo. Despite the release of their alibis, the four colleagues find themselves in the crosshairs of the IGS and the prosecutor. They are constantly questioned by Vogel and his men.

Eddy, Theo, Walter and Roxane are sinking more and more done in a spiral of violence and resentment. Eddy and Walter have two mobsters who killed Walter owed money. The homicide squad is dispatched to the offices of the Judicial Police and the General Inspection Service is on a war footing. Caught by Lemoine, Theo had to give the name of his accuser, who is none other than his lawyer. Roxane's worried about his colleagues, made of a cycle in which the young woman does not want to set foot.

Parties on a crusade on behalf of the memory of their friend dirty, the group of SDPJ 92 are stopped in extremis by special forces police. The time for accountability has arrived. The disciplinary board convened an emergency room Caplan in custody awaiting trial, and then dismisses Morlighem Delgado and their officer rank and reassigned to lower positions. As for Theo Vachewski, it is canceled at the effective life of the policy. Each of them will now have to regain balance and meaning to his existence. In a luxurious housing estate on the edge of Paris, four men murdered twelve to get their hands on 400 pounds of gold ...

Merks is incarcerated in the prison where Eddie Caplan is also held. This one is offered a dangerous mission: to escape with the criminal to infiltrate the robbers in the team of the Unseen.

After the death of Mercks, Caplan finds himself alone and desperately needs to find a way to get in touch with the Unseen, these former military personnel returning from Angola to take revenge. The only track remaining at his disposal is the Elmidoro Miriam, the sister of Mercks, who heads a circle game in Paris. For their part, the Invisible trying to find a buyer for their 400 kilos of gold. They finally meet Ms. Arifa Latif and his son and Daniel. Moreover, it is a race against the clock to the rest of the group Caplan, who is trying to retrieve Theo in danger since Lemoine is on his trail ...

After his car blew up, Theo was taken to hospital in a critical state. Caplan and Morlighem go to Vogel's place, determined to avenge their companion. Vogel finds an ally in the shape of Orianne Beridzé, who also wants to eliminate Caplan. Her plan is to force her father, an ex-cop, to contact Caplan and put him on the tail of a trafficking network run by the Russian Mafia. Meanwhile, Roxane is deeply upset about Theo and watches over him day and night.

Caplan and Morlighem have intercepted a truck from a company belonging to the Russians and uncover a major prostitution ring. They are aided by a cop from Georgia, Andreas Megrelishvili, who informs them that a war between clans of the Vor V Zakone Mafia from different post-Soviet states is about to break out in Paris. Meanwhile, Roxane, who wants revenge for Vogel, strikes a deal with the former prosecutor, Vanderbeke.

With the death of Vissarionovitch – who ruled as 'boss of bosses' over several Russian-speaking mafia clans – a bloody war of succession is shaping up between the two pretenders: Jordania and Pavlovitch. Roxane continues to operate alone, tracking down Vogel’s sister thanks to information provided by Vanderbeke. In the meantime, Caplan, Morlighem and Megrelishvili stake out the funeral where Vissiniarovitch’s burial service is due to take place. Odessa, a female contract killer, sets up shop in a hotel opposite, ready to strike.

They've barely solved the Russian Mafia case when Caplan, Walter and Roxanne find themselves faced with "Baba" Aroudj, head of the Turkish Mafia. As for Vogel, he finds himself in a mess in prison. But that's not enough for Caplan, who wants to definitively put him out of harm's way. Only to get to him, Caplan is going to have to reconnect with the ghost of a very painful personal past.

The police of police isn't done with the Departmental Service of the Judicial Police (SDPJ) group. The investigation into Caplan's group and Bernardi is led by a devious cop: Chief Superintendent Henri Brabant. For his part, Walter is still enraged about the violent aggression his children suffered. Behind Caplan's back, he enlists Wassim Alcala, an old friend from the army, to find Charlie (Caplan's mysterious friend who appeared in season 3) to equip him which what he needs to take down the Turks.

The first commando operation that Caplan, Walter and Wassim lead against the Turks, puts Baba Aroudj under the fire within his organisation.