After Bernier’s layoff following the Volker affair, he takes over the head of the SR with a bitter aftertaste ... His meeting with Sonia, a talented photographer seems to make him forget his problems but everything switches when he discovers that she is lying about everything. Lucas finds Rose Orsini, his former teammate and his former love. Their reunion is short because Rose's mother is murdered. The SR takes care of the case and discovers that Rose's mother kept a huge secret that involves her daughter ...

Season 12 : 6.5M viewers
After a kidnaping, the destruction of the police station, Sara being shot… the team appears to be healing. While Elliot keeps having nightmares and Lucas is a bite lost and Sara is not well but refuses to stop working. Obsessed by a new case, she starts getting worse. Will the team be able to save her? Is Lucas’ love strong enough to overcome this obstacle? On the other hand, Bernier keeps helping his team and starts falling in love again. But without notice, the past resurfaces…

Season 11 : 6.6M viewers
Bernier is finally getting married with Laura Belmont, his true love. A murderer hidden among the guests turns the wedding into a bloody party. Bernier, too involved, cannot investigate. Camille Chatenet, a new recruit is asked to replace him. In the meantime, Sara and Lucas are still unsure of their feelings towards one another, while Captain Bernier, fragile, is trying to cope. But for how long?

Season 10: 6.5M viewers

A serial killer, a missing child… the ninth season promises to be rich in sudden developments for the investigations and the team. As Bernier is trying to be a good foster father for Leslie, Lucas, mourning the death of his true love, focuses on his son Eliott. While Sara is now more independent and stronger, Nadia is trying to listen to her heart. Everything seems to be getting back on track when new unexpected events happen…

Season 9: 6M viewers
New city, new region, new team! After the trauma caused by Marco’s arrest, Bordeaux Research Unit fell apart. Bernier went away to meditate. A year later, he is ready to resume work. He meets up Nadia, who came to rest in her familial house in the Alpes Maritimes. Together, they join the new team and meet their new partners, including the experienced Lucas Auriol and the spicy Roxane Janin.

Season 8: 6.9M viewers
In this new season, the group is tested more than ever. Its unique and infallible solidarity helps the team to go through the events. Fanny Caradec makes a radical decision that her colleagues do not understand. A newcomer joins the team, Sara Casanova. The charm and strong character of the lady seduce Luc. Nadia tries dating sites on the Internet and starts an affair with a mysterious man, whereas she comes closer and closer to Marco. Everything seems to be in favor of Mathilde Delmas and Enzo Ghemara, who make plans for their future. But a terrible drama arises and reminds them that despite the uniform, they are vulnerable. From beauty contests to Far West aficionados, the investigators are about to discover new worlds and will have more and more complex cases to elucidate.

Season 7: 7M viewers
Lieutenant Bernier asserts his role as the leader of the Bordeaux UR Homicide Department, and has to face his obligations. Beyond criminal cases, he has to lead his team, which is not always that easy. Fanny Caradec’s ex-husband reappears as a suspect in an investigation. Ghemara and Mathilde, who now officially appear as a couple, wonder about founding a family. As for Nadia, she develops a real complicity with Marco, her young Warrant Officer. In this 6th season, investigations immerse us in original universes : tango, corrida, casino rooms, fishing in the Gironde Estuary, summer camp…

Season 6: 6M viewers
Ghemara takes the lead of the Research Unit. This promotion allows him to live his love with Mathilde in plain sight. As for Bernier, he becomes the head of the Homicide Department and appoints Mathilde as his Warrant Officer. The Research Unit welcomes a new member: Fanny Caradec. This investigator is a former colleague of Bernier and has an unbelievable instinct. However, she remains very fragile and Ghemara does not approve much this newcomer, whose vulnerability could be fatal to the team’s unity.

Season 5: 7M viewers
Claire goes on with her investigation: she wants to find the man who killed her husband…Mathilde has to face souvenirs of her difficult childhood. As she lives through this ordeal, she gets closer to Ghemara. Luc gets a promotion and becomes investigator in the field.
On the investigations side, the Research Unit has to face always more complicated cases: a woman shot on the stairs of a church after she confessed; a slaughter in the café of a quiet town; a woman mortally attacked by a dog; two teenagers leaving for a crazy stampede; a young magistrate poisoned at an urbane reception…

Season 4: 6M viewers
As Ghemara was sent to hospital after being shot at the end of the last season, the Research Unit is attributed a replacement, Vaton. This latest comes from the General Inspectorate and suspects the Captain of taking part in shady businesses. Despite these serious accusations, the team remains united and goes on elucidating new cases.
A new member also joins the team, Chief Warrant Officer Claire Linsky. This investigator, who is still traumatized by the tragic death of her husband, tries to raise her young son alone. Bernier and Mathilde still call into question the durability of their affair. Ghemara turns out to be miraculously unharmed of his accident. He comes back to the lead of the Research Unit and openly shows his disagreement towards the affair between his two investigators, which is forbidden by the regulation.

Season 3: 7M viewers
As Branevic died, an investigation starts to determine if Bernier respected the procedure, but he is quickly discharged. During the Research Unit’s numerous investigations, Ghemara meets Anouk again, the girl he loved when he was young. Bernier does not appreciate much the return of the lady, who is responsible for most of Ghemara’s judicial past. As for Nadia, she has to deal with many personal issues, while Bernier and Mathilde work more and more often together, and realize that they are more than colleagues for each other.

Season 2: 6M viewers
In Bordeaux, France, the young and ambitious Captain Enzo Ghemara leads the Research Unit. Among his investigators, Major Martin Bernier is the most experienced. This latest is a former soldier who was sent to Kosovo. He saved Ghemara from delinquency when he was a teenager, and they both now share a real complicity. Warrant Officer Mathilde Delmas is a novice investigator, who tries to make a name for her in a very masculine world. During their investigations, they are helped by Warrant Officer Luc Irrandonea who is a young expert in NTIC, and by Captain Nadia Angeli, who is an experienced scientist. During their first investigations, Bernier comes across Branevic, a terrorist he met in Kosovo who killed the woman he loved.

Season 1: 8M viewers