As Julien and Genevieve outmanoeuvre Constantin, the Brigada make their own move and as Julien uncovers their inside source things lead to a dramatic conclusion.
After having an operation on his brain tumour, Julien Baptiste claims he is not the man he once was. His former boss persuades him to help the Dutch Police look for a missing 15-year-old enslaved sex worker in Amsterdam. While looking, he meets Edward Stratton, the uncle of the missing girl. All is not as it seems with Edward and the show also introduces Kim Vogel, who has a criminal history and Constantin, a Romanian national who is seen cuddleing and dismembering a victim at the start of the programme.