In this fifth season, a new elite officer, Anna Gori, arrives at Precinct X Tuscolano, where she will team up with Luca Benvenuto. Meanwhile, a Carabinieri captain, Davide Rea, played by Giampaolo Morelli, tries to gain the trust of Commissioner Corsi and investigates the shooting that left Inspector Belli's wife, Germana Mori, injured and in a coma.