Thanks to the investigation of Émilie and Major Servoz, the body of the caravan is identified. He is an employee of the Isba, the hotel of Boris Arnoux, the champion of the Clairies. But where does the €150,000 come from? The drug trafficking trail is favored by Émilie and Servoz, who trap the station dealer who is none other than Baptiste Montfort, Émilie's younger brother. She has no choice but to take her own brother into custody. From then on, it is the violence of her father and the terrible silences of her mother that Émilie will have to confront. In complete disarray, Émilie must nevertheless assume her role of policeman but also of divorced mother, and urgently settle the actions of a group of enraged environmentalists against the town hall's real estate project under the leadership of Alexia Maldini.