Alberto Angela takes us to some of the most beautiful mountains in the world, the Dolomites. How did they become so popular? It's a fascinating story.

Erica welcomes us to the tourist office where she works. She tells us all about it.

Karin has disappeared again. Her brother asks Camilla to stop by to talk to his mother.

The truth comes out as Lara and Luca question the count. The canine heroes are returned to Ferruccio's widow.

If you would like a non-alcoholic cocktail (sometimes called a mocktail), try this recipe for the exclusive Sahara from the VintRò bar in Mazara del Vallo in Sicily.

Lorenzo explains what had happened the night before. Eva goes to visit Augusto and sees an old picture postcard sent to him from her ex-husband. Then she sees Dante with another woman. What a day.

Erica, from a small city in Tuscany, talks about her great passion: archeology. She has been lucky enough to be able to combine this passion with another one — tourism – in her current job.

At school, Camilla gets a visit from someone to talk about Debby. Camilla handles the situation with her usual truthfulness tempered with diplomacy.

The dogs are sent off to do their job. There is a moment of tension when both Luca and Lara realize some things never change.

Vincenzo, a barman in Mazara del Vallo (a place you will certainly want to visit if you go to Sicily), demonstrates how to make a drink you will find exclusively at his bar, called VintRo'.

Eva is cooking up a storm, but it's also time to help Alba. Lorenzo has a bad night.

We discover an amazing spot in the Italian Alps that overlooks the Chisone valley: an eighteenth-century fortified boundary wall, one of the longest in the world.

Renzo wants Camilla to go to a book presentation with him, but she is not so sure. She totally forgets her appointment with the neighbor boy, but he doesn't. She helps him with his Latin, but tries to draw him out, too.

Brigadiere, Aunt Caterina's dog, gives Luca an idea regarding the investigation and he and Lara are off. Speaking of animals, in his phone call with Toscani, Luca uses an idiomatic expression featuring an animal. Get some insight about it in this lesson.

Dante and Eva are still not talking to each other. Lorenzo and Dante are talking, but not really listening to each other. Andreina and Eva witness something interesting at the pharmacy.