In Naples Luigi Reale, a young carabiniere, investigates a robbery involving Marco Portosalvo's runaway gangster, now hiding in the house of his neighbor Teresa. Based on the story of the same name by Diego De Silva.

Mork is an undercover inspector, Mindy is a self-confident and very smart agent. Together they investigate a group of drug traffickers, while trying to make peace with their past.

Genoa, the superintendent Fabio Derna investigating a diamond trafficking, discovers that the courier with the consignment is his old friend Domenico Fiore, whom he hadn't seen for years.