Friends Marc and Franky start a career with the Gendarmerie. The corps is in a deep crisis after an internal drug scandal and Marc ends up in the middle of the internal battle within the Gendarmerie. Student Vicky distances herself from her brother Franky and Marc because they are not very popular as gendarmes on the left-wing university campus.

After the attack on Vernaillen, Marc is taken under the protection of his new superior, adjutant Goffinard. Franky then jumps into the breach for his boss, adjutant Debels, who went far over the line in a racist incident. Madani Bouhouche wants revenge after his dismissal from the Gendarmerie.

After several deadly attacks, it suddenly becomes quiet around the "Bende van Nijvel" gang, and the investigation therefore comes to a standstill. Marc has to do administrative work, much to his frustration. When Vicky receives an interesting assignment, he hopes she will pass on information to him, but he has not counted on her professional secrecy. Franky is increasingly fleeing into hard drugs.

Bouhouche is arrested for the murder of his friend Mendez. Together with Goffinard, Marc eavesdrops on the prison conversations between Bouhouche and his wife, which yields important information. For a moment it seems that they can really catch the Gang now, but then it comes to a shocking confrontation.