After five years of marriage, Diana discovers the joys of adultery, claiming that she can save her failing relationship through betrayal.

The king desires nothing more than a male heir. But his wife gives birth to a girl Fantaghirò. When she refuses to marry years later, she is sent in the forest where she learns how to ride and fight like a man. She appears disguised in a duel with Prince Romualdo, the son of her father's adversary. Both fall in love, but their marriage brings no peace to the united kingdom. Evil forces are trying to seize power.

After a queen's tragic death, the king abandons his newborn daughter in a cave, but a witch saves her. Years later, the tomboy princess must confront and ultimately falls in love with the enemy king.

15-year-old Giuliana doesn't want to spend the summer with her rich mother, so—without a word—she leaves with Romeo, the son of the janitor of her building, embarking on a backpacking trip through Italy. Her divorced father is worried and decides to go in search of his daughter.