In the third film in the series, in 1908, Henry Jones Sr. takes his wife, son and the boy's tutor to the world's first psycho-analytical conference in Viena, Austria. Young Indy meets Princess Sophie of Austia, daughter of Archduke Franz Ferdinand and develops deep feelings for her. He even asks Sigmund Freud, Carl Jung and Alfred Adler for love advice. On their next stop in Florence, Anna Jones becomes the object of affection for the persuasive opera composer Giacomo Puccini. With her husband away in Rome, Anna is torn between her feelings for her husband and the impulsive Italian.

A septuagenarian couple are attracted to each other in a retirement home but find the institution and their fellow patients frown on their relationship.

In the midst of trying to legitimize his business dealings in 1979 New York and Italy, aging mafia don, Michael Corleone seeks forgiveness for his sins while taking a young protege under his wing.