Betrayed by his people and exiled to Earth, Lord Oberon, the former king of the fairies, seeks out an innocent prophesied child in order to manipulate her into becoming his ultimate weapon so he may reclaim his rightful throne.

Ariel is a fun-loving and mischievous mermaid who is enchanted with all things human. Disregarding her father's order to stay away from the world above the sea, she swims to the surface and, in a raging storm, rescues Prince Eric, the man of her dreams. Determined to be human, she strikes a bargain with the devious sea witch, Ursula, and trades her fins and beautiful voice for legs. With her best friend Flounder, and her reluctant chaperon Sebastian...