The Wonderboys set off to search for a figurine in underground Naples.
In underground Naples, the Wonderboys team up with Tonino and make a discovery. The Old Hag and her henchmen are on their heels, determined to get a hold of the Maradona figurine. The parents are concerned about the disappearance of their children.
The Old Hag drags Clemente to a charity event at Nino D'Angelo's mansion. Underground, the Wonderboys' adventure appears to be over. However, Clemente betrays the Old Hag and joins forces with Antonia, who has arrived at the party with the parents.
The Old Hag is trying to track down Clemente; Antonia and Tonino, while searching for a way out from the underground to lead the kids to safety, stumble into a dangerous solfatara; Chihuahua is dismissed by the Old Hag.
Tonino and Antonia sneak into the Archaeological Museum of Naples to learn more about the photo. While Teresa manages to get to the Fontanelle Cemetery, the parents desperately try to contact the Wonderboys, who are still underground and in danger.
Naples is preparing for New Year's Eve celebrations; the Wonderboys, Clemente and Tonino are determined to get their hands on the treasure; after seeking help from the police, the group of parents begins to believe in the magic of Naples.
Serena Rossi
La Vecchia
Massimiliano Caiazzo
Tonino 'Uonderboi' Esposito
Denise Capezza
Samantha
Marco Mario De Notaris
Ciro
Mario Rivelli
Gino