Darius, who finally finds answers to the mystery of his origins, decides to stay at the "Hive", leaving the investigation to his colleagues. But very quickly, the rest of the Invisibles understand that the crime scene at the beginning is intrinsically linked to the community that Darius has just infiltrated. Without a cell phone, and following the members of the "Hive" on a journey, we wonder if Darius sees the trap closing in on him? In a mad race against time, the Invisibles will try to understand this tenuous link between "The Hive", the triple homicide and Darius, while, for his part, their leader will finally close the dark chapter of his identity, and his past... To, perhaps, free himself and definitively accept his story?

It's a commotion at the PJ offices. A woman in a police uniform committed suicide in Chistera's office during the night! Everything suggests that a colleague killed herself at her workplace to denounce the working conditions of police officers on duty. However, no one recognizes this colleague, and no papers are found on her. Chistera orders all departments to make themselves available to Darius and his colleagues, much to Marijo's delight! But very quickly, the Invisible's profile proves difficult to reconcile with that of a police officer. Who is Marianne? Why kill herself and denounce all this if she's not "from the house"? The truth probably lies with Driss, a young thirty-something under pressure in a housing project run by Vince, who seems to want to entrust Driss with more and more responsibilities. Around him, there are jealous people, a woman, and above all, a disappearance that will reshuffle all the cards...

In this two-part investigation, it is the skeletons of a woman, two children and a dog that are discovered at the bottom of a hole. Quickly, Darius and his team discover the identity of the man who would respectively be the husband and father of the victims. But upon arriving on site, a surprise: the man they come to see lives with his wife and children, and pretends to have stolen his identity that dates back several years. So, who is hiding behind these terrible crimes? At the same time, we follow a man who seems to want to get closer to his young son, summoning a terrible fear in his ex-wife... How are these two stories linked? For his part, Darius finally finds the final lead that will allow him to discover the truth about his origins. A trail with a name: "La Ruche," a community of people who advocate degrowth and a return to Nature...

Welcome to the world of football's "ultras"! The Lens Stabbers and the Lille Pitbulls have been waging a bloody war for years. Richelieu, this Invisible with patent leather shoes, found on a vacant lot, is quickly identified as a casual, namely an "ultra" who dresses in civilian clothes, who has a perfectly normal job but who, when night falls, transforms into a supporter within the Pitbulls. The Invisibles brigade will then dive into this world with its meticulous codes, with a hierarchy where we find characters from all walks of life, each more dangerous than the last. And faced with the silence of this environment towards the police, the brigade will no longer have a choice: it will have to infiltrate the world of the "ultras", using unorthodox methods...

On the side of a highway interchange, a dog barks. Beside it, a corpse. Well, not really. Because when the Invisibles team arrives at the crime scene, Darius notices that the victim, Fleur, is still breathing. She's in a terrible state, and in a coma once she arrives at the hospital. The team will have to find answers elsewhere...

The Invisibles team finds itself working on an unusual case. The corpse of a priest is found in the middle of nowhere. More importantly, something is discovered on the corpse that links this man to... Darius! The latter then decides to gather his team to try to unravel this mystery. For her part, Duchess meets Commander Risser, her new superior, officially in charge of the priest's investigation, who doesn't welcome Darius's return to the premises.

A corpse like no other lies before the brigade—a grotesque mosaic of calamities. Angie, the coroner, is stunned: this man didn’t just die... he was *claimed* by chaos itself. A wolf trap shattered his ankle, his shoulder was torn as if by some primal force, and a bullet ripped through him. They called him "Van Gogh" for the eerily staged crime scene, but the real story cuts deeper. In his abandoned caravan, the Invisibles uncover a world of obsession—puzzles, inventions, madness. He was chasing the fabled "Golden Toad," a treasure cloaked in legend and riddles. Did he perish at the brink of discovery? And just when it can’t get stranger, Colette and Roland—two octogenarians fleeing their retirement home—appear tangled in this twisted tale. Coincidence? Or is this bizarre death the key to a mystery decades in the making

In the middle of a wild rave party, the body of a 78-year-old man is discovered among the crowd, beaten and stabbed. There's no way to trace the identity of this elderly man. Darius and his colleagues are left in a state of incomprehension: what was he doing there? And why didn't anyone seem to have seen him during the party? While Marijo finds a strange piece of paper in the victim's jacket lining, we then discover Françoise, her husband, and their best friend. They're all between 75 and 84 years old. Their common thread: a general sense of fed-upness. Their pensions are ridiculous, they feel like they've become a burden on society, and they're slowly dying. Their plan? To rob a supermarket.

The team has seven days to ID an unknown corpse found in a field - and bring the victim's killer to justice.

A skeleton is found in the garden of a house. The new owner is in shock. The Invisibles team quickly suspects the nephew of the former owner, who took over the house at the time of the latter's death. Enzo, fresh out of prison, seems to have a very specific plan in mind. He approaches this young woman singing in the street, and uses his charms to lure her into what seems like a trap. But, just as his plan is working, Enzo reverses course.

The body of an unidentified man, wearing jogging gear, is left brain-dead on the steps of the Lille University Hospital. There's no trace of who left him. The only clue: a gray van, spotted on surveillance cameras. On the Invisibles brigade's side, the clues are slim, but they identify the jogger. A bad guy, according to many people. While things are getting tense at Duchesse and Ben's, an IGPN cop arrives to monitor the Invisibles group, who are in the line of fire of the hierarchy... Elsewhere, we discover little Stella, seriously ill. Stella is worried: her father is acting increasingly strange and tense. Besides, what does he do with his days, locked in the annex at the bottom of the garden?

A young woman's body is found in a century-old abandoned tomb.

A charred corpse found in an abandoned quarry leads to an uneasy collaboration.

An unidentified woman in a wedding dress is found under the Citadel Bridge in Lille.