1985 - Season 1 (2023)

At a demonstration, Marc as a gendarme and Vicky as an activist face each other. When Marc is attacked by a group of students , Vicky saves him. It brings them closer together. As a reward for his discretion, Franky is allowed an internship with the Special Forces Brigade Diane. Marc and Goffinard discover that several of the recent murders can be linked. Vernaillen is secretly conducting a parallel investigation.

Marc and Vicky try to keep their relationship a secret from the outside world, but discussions about drugs and their opposing political views create tension. Franky gets to work as a security guard at a minister's private party. During a break-in at a supermarket in Nivelles, three people are cold-bloodedly executed, including a gendarme. The robbers lure a gendarme patrol and a police car into a deadly ambush; the Brabant Killers are born.

Vicky obtains her lawyer diploma and lives now with Marc. In the same time, Marc is leading a secret investigation of the Brabants killers with Goffinard. Vernaillen is promoted to a function far away from the official investigation. Group G thinks Marc is getting too curious about their activities. They send Franky after him. It comes to a painful confrontation between the two friends.

After several deadly raids, the Brabant Killers seem to have suddenly stopped their attacks. The investigation has stalled, and Marc has been transferred to a Gendarmerie department where he has to do administrative work, much to his frustration. Franky increasingly flees into hard drugs. Bouhouche is worried because Juan Mendez suspects him of stealing his weapons collection. Vernaillen continues to work on his private investigation and shares his findings with Marc. Vicky refuses to breach her duty of professional confidentiality as a lawyer to help Marc.

Bouhouche is arrested for the murder of his friend Mendez. Together with Goffinard, Marc eavesdrops on prison conversations between Bouhouche and his wife. This is how they find out where the Brabant Killers weapons are located. During the observation of that place, a confrontation occurs.