Milanese policeman Peppino and Neapolitan florist Ambrogio celebrate Christmas in the same ski resort town along with their families. After they discover that both their sons are dating, but have never met their girlfriends in person, the parents embark on a private war against those dating apps that seem to have reached almost everything and everyone.

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.