Marc and his friend Franky embark on a career in the gendarmerie. The force is in a deep crisis after the drug penalisation of one of its officers was uncovered by Major Vernaillen.

After the attack on Vernaillen, Marc is taken into protection by his new superior, adjutant Goffinard. Franky, meanwhile, then jumps back into the breach for his boss, adjutant Debels.

Together with Goffinard, Marc discovers that there is a connection between several, at first glance unrelated, serious crimes. But Goffinard forbids Marc from sharing that info with other services. He doesn't want snoopers.

At a demonstration, Marc as a gendarme and Vicky as an activist face each other. When a group of students attack Marc, Vicky saves him. This event brings them closer together.

Marc and Vicky build on their secret relationship, but discussions about drugs and their political antagonisms create tensions. Franky gets to work as a security guard at a minister's private party.

Vicky has graduated as a lawyer and now lives together with Marc. The latter is conducting a secret investigation into the Gang with Goffinard. Vernaillen is promoted and transferred.