S4·E6 Fear at Kindergarten / Killer Waters

At the X Tuscolano comes the shocking news of a minor who is in a coma after accidentally ingesting cocaine. Mauro immediately goes to the hospital and discovers, with great astonishment, that the accused is Ardenzi and the victim is his daughter, little Mauretta. Meanwhile Ingargiola receives the complaint of a woman whose wallet has been stolen, and realizing that it is his first love as a child, he loses himself in nostalgic memories.

The District agents work on the case of the discovery of a body on the banks of the Tiber and discover that the victim, a photographer responsible for an environmental association, was investigating the deliberate pollution of the river. In the meantime, five people who escaped the fire of a local supermarket arrive at the police station and are looking for the hero who saved them by opening an escape route for them. And who knows, maybe it's someone who works at the Decimo Tuscolano.