Cettina helps Guido get his room in order, and discovers that an assumption she had made about him was false. Grandpa Libero has to go and confront Alberto about his absence from the university.

Marika shows us a famous bookshop in Venice. It's in a critical position with respect to the water level, so special precautions are taken to protect the books when there are high tides. Fascinating!

We learn about the curious names of some of Mont Blanc's magnificent peaks and glaciers. Normally there are 42 glaciers but that number can change!

Dafne and her father are on the train together. She seems happy, he a bit less. They get off and start hiking.

Nora goes to see Roberto, to let off steam. Later she discusses the wedding with Ugo, and they make some decisions.

Camilla goes to see Luca's mother and learns why she doesn't want to call the police about her missing son. Gaetano is rushing to the airport, where Torre and Ferrari are waiting for the victim's wife to make an appearance.

Ciccio goes out with his un-named friend and we discover what the pupo (kid, puppet, baby) is. At home, Maria is studying with Rebecca, but having a hard time concentrating. When Guido finally walks in the door, there is a little misunderstanding.

Mont Blanc has always been considered the highest peak in Europe. But is it? Alberto Angela discusses this and another question: What's the real height of Mont Blanc and why do they have to measure it every two years?

Dafne finds a little memento that seems to ground her. Her dad is having a hard time, though. The lyrics of the song in the background seem to mirror what's going on in Dafne's head.

The wedding gown design studio still hasn't solved the problem of the grains of wheat to put in the hem of the bridal gown. In the office, they are still waiting for Rebecca, but no one could predict what happened next.

Ferrari finds a plane ticket in the victim's name and calls the travel agency to find out more. Camilla and Martina pick up the kids at dance class and the conversation gets around to the new substitute teacher Camilla had no idea about.

Liberto wants to tell Nilde about Alberto but holds his tongue because she has her own problems. Later, with help from Fausto and Lele Ju, Libero is able to find out some more details about the exams.

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.