It's hard for Dafne to adjust to the old family homestead, especially the first night. She also notices something about her father.

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.

Gaetano and Camilla do a post mortem at his apartment. He stocked up on vermouth, just for her.

Both Lorenzo and Ugo are trying to show their partners that they are worthy and can be trusted.

In the Martini household, the news leaks that Mariano will be coming to stay — another headache for Grandpa Libero, who wonders, "How did this happen?" As you watch, be on the lookout for the saying: campa cavallo. Marika explains this expression in a video lesson.

Dafne and Luigi are dealing with the aftermath of Dafne's mother's death. Meanwhile, Dafne's uncle and aunt arrive.

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.

Virginia and Camilla meet up outside police headquarters, where Edoardo is waiting for Virginia. The two friends clarify some things and say their goodbyes. Meanwhile, Camilla gets a phone call from Gaetano who has an emergency.

Ugo is busy, so Nora gets Roberto to help out with some venue scouting for the wedding. Maya reveals her true origins, which is a bit of a shock to Lorenzo.

Among the staff at the health center, there is gossip circulating about Doctor Zanin's past job in Milan. Zanin then has a meeting with the new director.

Bettina is trying on bathing suits for her vacation with Gaetano, but things get unusually quiet and Camilla is a bit alarmed. Later on at home, Camilla gets a phone call.

Nora meets Maya, Lorenzo's future bride. The wedding seems to be growing in size and importance. Meanwhile, Melody is chatting with Dino and finds out his real name.

Grandma Enrica goes to see Libero and her grandchildren. But who knew what she would propose? Libero almost has another heart attack, and has to think fast.

Dafne is out dancing, but her parents are there, too. The next morning she has a little argument with her mother.

Tommaso tells the whole story of what happened that fateful night. As usual, Camilla is way ahead of Gaetano in figuring things out.