The adventures of Ariel and her friends at the age of fourteen. From her first known trouble with Ursula to her collection of human objects, the show illustrates her journey as she finishes growing up. It also introduced new characters such as her merboy friend (an orphan named Urchin who her family all saw as a little brother), the snobbish mermaid named Pearl, the mobster lobster, Evil Manta, Sebastian's family, and an orca Ariel named Spot.

The show originally aired on CBS. Reruns have aired, at different points in time, on the Disney Channel, Toon Disney, and Disney Junior.