Thanks to the joint investigation of the Police and the Carabinieri, Giulia and Davide discovered twelve tons of drums containing toxic and carcinogenic waste hidden in the land purchased with the mediation of the broker Liverani and cost the life of a city councilor killed with Terenzi's weapon. Germana writes an article on the ecomafia that is published on the front page and sparks a great debate. From that moment on, Terenzi follows her insistently. While Ugo is struggling to organize his next wedding with Adele and Vittoria and Ingargiola continue to argue, Mauro and Roberto investigate the murder of Aicha, a twenty-year-old Moroccan.