A mermaid princess makes a Faustian bargain with an unscrupulous sea-witch in order to meet a human prince on land. In Disney's beguiling animated romp, rebellious 16-year-old mermaid Ariel is fascinated with life on land. On one of her visits to the surface, which are forbidden by her controlling father, King Triton, she falls for a human prince. Determined to be with her new love, Ariel makes a dangerous deal with the sea witch Ursula to become human for three days. But when plans go awry for the star-crossed lovers, the king must make the ultimate sacrifice for his daughter.

Lady Tremaine gets her hands on the Fairy Godmother's wand, then turns back time to the day Cinderella tried on the glass slipper. She enlarges the slipper to fit one of the stepsisters, Anastasia, then erases Prince Charming's memories of meeting Cinderella. Now, Cinderella must foil Lady Tremaine's scheme and win back her prince.