This is a story about the love of a beautiful and energetic mermaid named Ariel, who craves adventure and freedom. She is the youngest daughter of King Triton and the most daring of his daughters. Ariel longs to learn more about the world beyond the sea and falls in love with the brave Prince Eric, who saved her from drowning. But while mermaids are forbidden to interact with humans, Ariel wishes to follow the call of her heart and breaks this forbidden rule.
She strikes a deal with the evil sea witch Ursula, who gives her the chance to experience life on land, but ultimately puts not only her life but also her father's crown in danger. Ariel must fight for her love, her freedom, and her life to regain what she had originally and protect her native land and the underwater world from the evil that seeks to destroy it.