Francis, now 17, is still in love with Moondoggy. She can persuade her parents to allow them a journey to Rome, together with two of her and two of his friends. However they have to take an adult with them, so they choose Peter's eccentric aunt. In Rome they get the beautiful guide Daniela, who's fascinating the guys and making especially Gidget jealous. She starts looking elsewhere herself.

Antonio, a former variety actor, keeps his daughter in an excellent boarding school by organizing small scams with his friend and colleague Felice. Commissioner Malvasia good-naturedly persecuted him. When their respective unsuspecting children fall in love, the two fathers make peace.

After landing on a mysterious planet, a team of astronauts begin to turn on each other, swayed by the uncertain influence of the planet and its strange inhabitants.

A scientist who has invented a weapon capable of disintegrating solid matter is kidnapped by a criminal gang, which intends to sell the scientist and his weapon to the highest bidder. A secret agent and the scientist's daughter set out to track down the kidnappers and rescue the scientist.

A girl searching a forbidding jungle for her missing father stumbles upon a savage jungle girl.

The elderly O'Hara, owner of a fortune in emeralds, offers half of his estate to whoever manages to get him out of jail. The adventurer Don Casey arrives in the town of Guaynas, ruled by the tyrant Villarde, to fulfill that wish.

Penniless Baron Tulicò, nicknamed Leopard, abandons his mistress, with whom he's had two sons, and marries a rich woman. The mistress tries to have her rights established with the help of her sons.

Giulio and Armando, both married, attempt an escape from their respective married lives, invent a secret mission and leaves for the south.

Photographer Philippe Abregas teams up with a Swedish model he met in Roman high society and tells her the story of the four other girls he has chosen to feature on the cover of his magazine.