As police close in, Cann plans to make a run for it. But first, he reaches out to Edelman, asking for his help. Josephine intervenes in the investigation but is not immediately trusted. Meanwhile, Laure and Gilou still have not been cleared of wrongdoing by Internal Affairs.

On the day of the hold-up, last minute changes cause chaos and the police's meticulously planned intervention is thrown into disarray. As the situation becomes more and more dangerous, Laure does all she can to get Gilou out to safety. But her options are limited - and very risky.

The net draws in around Riffaut and his gang, but in-fighting within the police means that very dangerous loose ends remain on the streets of Paris.

Joséphine heads back to Paris with young Youssef, but his brother Souleymane is now in grave danger. Judge Vargas, who was in charge of Gilou's infiltration, decides to cut his losses. But what does this mean for Gilou?

While pursuing the raiders, police come across new evidence which could potentially shift the focus of the double murder investigation.

Laure Berthaud leads an investigation into a shocking double murder, while Josephine Karlsson takes on the case of a man accused of killing a policeman.

The double murder investigation steers Laure's team towards a group of bank raiders.

The police investigation into the double murder has uncovered a link between Sandrine Jaulin and Zacharie Gabbai's criminal gang.

Gilou is taken into custody, as his team looks on in dismay. Joséphine defends Tarek Ziani and engages in a power struggle with Roban.

The investigation picks up when police find a fingerprint amongst Gabbai's belongings which links to the crime scene of the double murder.

Fabienne Mangin submits a modified plan to the City Council so that the land where the Roma camps were would be zoned as buildable. Having not obtained satisfaction, Drissa Camara is more threatening. For her part, Laure tries to find Maria and convince Herville to search for the vehicle of Calvi and Jolers. As for Josephine, she lets go of nothing and subpoenas Judge Roban and Attorney Machard to appear. Edelman fears such action will hurt his practice.

A blunder by the depleted detective team has a shocking outcome, while what Moldovan also sells is revealed. Will Edelman's bluntness sway Josephine? Roban runs out of options.

Samy tries to allay the suspicions of the Larbi brothers as the operation reaches its conclusion while Karlsson continues to walk a fine line. Last in the series.

The police finally close in on Niko's prostitution ring, but the killer evades custody leaving Laure in a race to get to him first. Judge Roban discovers that the moral high ground comes at a price, while Pierre finds Josephine has made a deal with Szabo to save him.

New evidence emerges which proves damning for Jaulin. Herville presses on his team to nail the mugging ring. Josephine Karlsson comes up against an infamous, amoral lawyer in court.

Herville strives to endear himself to the police commissioner. Laure's team hires an informant who was already on the payroll of Bremont's crime unit.

Following the attack on Kimberley, the noose tightens around the criminal activities of Karen's girl gang. But as the police close in, they strike again.

Despite the strong objections of Beckriche, Laure, Gilou and Fromentin are convinced that they must stay on the trail of the Camara brothers. They discover that their homework is only a facade, behind which lies a traffic of contraband cigarettes. In the field, Gilou confesses the whole truth to Laure about the bullion. For his part, Tintin has to deal with the arrival of his son Ruben, who came to spend a few days with his father. In addition, Laure's investigation into Josephine's rape is progressing.

Jean-Etienne Vern asks for Josephine’s help because he is summoned for a conciliation commission: Stéphanie, a former partner, declares the breach of her contract and accuses her of harassment. At the police station, Enzo’s interrogation of Justine sets the police on the trail of Maria, the girl’s best friend. Laure and his colleagues are trying to find young Roma but she no longer comes to college.

The surveillance of Calvi and Jolers confirms that they are in touch with the Camara brothers. Beckriche is asking for additional resources for his team and categorically refuses to allow the IGPN to resume the investigation on its own. For his part, Roban receives the results of his brain biopsy. Joséphine starts working alongside Edelman and is interested in the Bodin file. She is, indeed, intrigued by Roban’s findings, that she has been more meticulous in her work.

Drissa Camara is double-crossed, but hopes his hold over Gilou will save him. The secrets and lies become too much for Tintin. Josephine is in jeopardy if she sticks to her story.

As the police identify that their top priority is to track down Ryan and his gang, Gilou agrees to work with Laure again, but she must find her place now that he and Ali are a team. Meanwhile, Edelman provides legal counsel to Joséphine to help her get out of prison.

Laure follows the drug traffickers’ courier to a warehouse in Aubervilliers, where the investigation suddenly acquires a new dimension. Meanwhile, still frail, she struggles to cope with the responsibilities in her personal life. Joséphine has a hearing with the judge. And Roban pursues a case of negligence at a hospital by involving the hospital director.

Laure and Gilou sink deeper into taking illegal measures, risking yet more grave repercussions. Their former team member Tintin is tasked with investigating their methods. Meanwhile, Joséphine does her best to protect Lola. However, she proves to be a most uncooperative defendant - for reasons that Joséphine understands only too well.

When Laure and Gilou, under investigation by Internal Affairs, are taken into custody, Tintin is torn between his loyalties to his former colleagues and his new job. Josephine also faces a moral decision about how best to fight Lola's case.