
Ariel goes on fun-filled, action-packed mermaid adventures with her friends in the mystical underwater country of Atlantica.

Flounder sees a land creature that keeps disappearing and tries to find it; when Ariel and Ursula magically transform into catfish, they have to figure out how to turn themselves back to their regular selves.

Flounder finds a Magic Wishing Shell that makes wishes come true; Ariel learns that Triton has to leave on a trip and decides to hide his favorite bathrobe to make him stay.

Ariel goes out on a camping trip with Sebastian to explore the outdoors; Fernie finds an injured jellyfish and takes it to Ariel in order to help it.

When Sebastian's favorite pencil breaks, Ariel tries to give him a new one; when Akiko breaks a crystal string on her favorite instrument, Ariel helps her find a replacement.