Three estranged siblings arrange a fake trip to Paris to fulfill the wish of their terminally-ill elderly father.

While preparations for the wedding between Luna and Luigi are in full swing, Angelo, the bishop's twin brother, unexpectedly drops into the rectory with the intention of recovering an inheritance that he has not yet pocketed: 12 gold bars.

Don Donato and company go on a trip to Cinecittà World theme park, where Luna and Luigi have decided to spend their honeymoon. These are also important days for Gina, since she's now expecting, while Angelo, as always, is ready to look for new ways to earn easy money. Everything seems to be going well, but it's just wishful thinking.

Don Donato accompanies his congregation of villagers to visit Roma World, a theme park set in ancient Rome. Meanwhile, however, preparations for Luna and Luigi's wedding are interrupted by the arrival of the bishop's twin brother, Angelo, who is desperately searching for a hidden inheritance consisting of twelve gold bars. Don Donato joins the treasure hunt, taking advantage of the bishop's absence, who is away in Rome on a mission.