We are back visiting nature's own wonders, this time up in the mountains, on Mont Blanc, to be precise, at an altitude of over 4000 meters.

Dafne is trying to get her father to do more than just lie around. She also has some ideas about changing around the furniture.

Ugo and Nora seem to be having a harmonious moment but there is tension in the workplace, as Iside tries to get a wedding gown ready for delivery. A new client has shown up and is chatting with Ugo in the office. It's "renewable energy" week in Trieste.

Domenico gets an impromptu chance to sing in Italian for a French audience, and it goes well. Not well enough, however, and he is still depressed and feeling uninspired.

Camilla gets caught at the school window by the new principal. Having seen what she saw, she tries again to get some information from her students. Meanwhile, Berardi and Torre search the apartment for clues, and Berardi talks to the doorkeeper of the apartment building.

Guido goes over and beyond the requirements for a housecall. Meanwhile, Cettina is bringing out the "good silver" again to impress the doctor from the big city.

Imma buys a dress to replace the one with a stain. Calogiuri has some new information about the victim. Meanwhile, the chief prosecutor gets a disturbing email.

The Castle of Roccascalegna stands on a high, rocky bluff dominating the valley of Rio Secco in the province of Chieti. Breathtaking drone footage allows us a bird's eye view of this fascinating construction, begun by the Lombards as a watchtower.

Dafne's father prowls around the house at night with a flashlight. She doesn't get it. She likes running water, which he doesn't get. They are each trying to deal with their grief.

In the end, Lorenzo and Maya's wedding was a success for everyone except Gisela. Back home, Ugo and Nora discuss the day without arguing too much, which is also a huge success.

In Paris, Mimmo and Franca are having a rough time getting by. But that doesn't stop Mimmo from wanting to have a good time. They don't agree on the right path to take.

At the police station, there seems to be a match for the murderer. In class, Camilla does the roll call and discovers Luca Foglietti is absent once again. She goes to the window to investigate.

Grandpa Libero is having a rough day with his family. Ciccio is zoned out playing video games. Alberto comes home talking about his exam, and Maria comes home without Annuccia.

Tataranni and Calogiuri talk to the owners of the dairy farm where the victim's limb had been found. On the way back, Calogiuri gets a good idea.

This time Mirò and his friends want to make music. Magic Box furnishes some everyday objects and the friends need to figure out how to transform them into musical instruments.