An important delivery is coming, maybe. The adrenaline of the stakeout turns into a night on the job with the worst possible colleagues. But right when everyone drops their guard, something unexpected finally happens.

Marcello has to face an Internal Affairs audit, and Achille trains him for the interview when a mysterious helper appears. Dario finds himself working with the boss' nephew, and Perri tells Katia her story and of course regrets it soon.

Dario and Toni have a problem: where is the boss' nephew? Achille and Marcello, with the help of a witness, are trying to solve a riddle: a message from Perri. And as everyone is distracted by personal matters, they miss a crucial detail.

Marcello thinks he has found a way to save his marriage. Perri tries freeing herself from a difficult relationship that will end up engulfing the police station. Meanwhile, a phone call for the gangsters risks precipitating the events.

Achille has gone on a second date with Perri, but this time he is convinced that it was disastrous. Naturally, Perri instead had a great time and the two find themselves once again caught in a web of clumsy misunderstandings that seem to push them apart, in a spiral of lowered romantic expectations.