Alberto Angela tells us how these natural wonders were discovered by a group of young cave explorers from the nearby city of Ancona.

Alberto Angela brings us to the Ancona Abyss, an immense cave chamber in the Natural Regional Park of Gola della Rossa and Frasassi in the Marches region. The spectacular Ancona Abyss and other innermost caves in the Frasassi cave system were only discovered in 1971.

Nature offers us some extraordinary wonders, and this time, Alberto Angela takes us to the Frassassi Caves, in the Marches region, and explains what the caves were used for by prehistoric man.

The episode closes with one of Domenico Modugno's most famous songs, Tu si' 'na cosa grande (you are something great to me), as Mimmo muses about the present and the future.

Mimmo goes to Paris and hears some great music, but doesn't have much success with his songs. That leaves him little choice but to go to Canada. It's cold there! He keeps in touch with Franca during his travels.

When they get to his hometown, there's one person Mimmo doesn't want to see and one person he does want to see. Later on, he talks to Franca about how frustrated he is about his career.

As Mimmo and Franca enjoy the beach and swimming in the clear water, he tells her about his childhood in the town they can see from where they are sitting.

The piazza where Mimmo and Franca perform is deserted, but everything changes once he starts singing a Tarantella. Later on, Mimmo takes Franca to one of his favorite spots.

Franca, disappointed and hurt, goes to visit her grandmother in Sicily and writes a letter to Mimmo.

Before the prince leaves the gathering in a very melancholy mood, he tells Mimmo about a job. Mimmo gets the job, but has a hard time satisfying the director (who is a bit eccentric, it must be said). Franca comes to the theater to see Mimmo at a certain point, but it might not have been the right moment.

At their meeting with the head of Curci music publishers in Milan, Riccardo and Mimmo dare to mention the word "contract." Once back in Rome, the Prince shows up at the artists' circle where Mimmo is having dinner.

Franca's career is going nicely, and Mimmo decides that he'll do whatever they want him to: Sing, dance, act...

For the radio show, Mimmo sings a very sad song, based on a story he had read in the newspaper. Note: The images of the event may be disturbing. This broadcast was one of the last Mimmo and Franca would be doing, and they talk about the immediate future as they walk home.

Franca was very skeptical about doing the broadcast with Mimmo, but ends up on the radio with him. There's one word to describe them: bravissimi! Remembering that these performances were live, not taped makes it all the more exciting to watch.

This is the final installment of the documentary dedicated to the Taviani brothers. It concludes as they do some location scouting in the marvelous old city of Montepulciano for Maraviglioso Boccaccio (Wondrous Boccaccio), a 2015 film. Vittorio Taviani died in 2015 at the age of 88, and Paolo is 89 and still making films.