Follows Sara, head of the Toulouse police narcotics squad, who is forced to collaborate with Richard, the head of the local criminal police, to stop a go-fast between Spain and France and find the murderer linked to the case.
When Fuchs starts his new job as a teacher in a prison school, replacing the old and unconventional teacher Berger against her will, he is forced to confront his biggest fear, triggered by the mysterious, withdrawn inmate Samira.
Famous lawyer, Luc Germon adds Gilles Fontaine, one of the most powerful bosses in France, to his clients. He is suspected of having acquired a magnificent property, Villa Caprice, under questionable conditions.