Season 1

Ariel and friends get a substitute teacher in music class.

Ariel tracks down a mythological sea creature.

Ariel invites a lost remora named Remy to stay at her Crystal Cavern.

Tantie Chantale, a marine biologist, comes to visit, and Ariel feels left out when she bonds with Fernie over fish facts.

Ariel competes in a Happy Patty Clap event.

Ariel makes a friend.

Ariel befriends a clam.

Ariel uses magic to clean her room.

Flounder is chosen as the team coach.

Ariel tracks down a mythological sea creature; Ariel and friends get a substitute teacher in music class.

Antie Chantale, a marine biologist, comes to visit, and Ariel feels left out when she bonds with Fernie over fish facts; Ariel invites a lost remora named Remy to stay at her Crystal Cavern.

Ariel befriends a little Goby fish who wants to go on adventures like her; Triton accidentally drinks Lucia's magical potion, which turns him into a kid.

Ariel helps Ravi and his best friend Navi clear up a misunderstanding; Flounder uses his cooking skills to help other chefs at the Atlantica Food Festival.

Ariel and her friends can't find a role for Delfino the dolphin in their band; when Ayanna is unable to compete in the Clap Game competition, Ariel steps in so that Alanna can still participate.

Despite King Triton's warning, Ariel uses magic to clean her room; Ariel and her friends befriend a shy clam.

Ariel volunteers to watch cuttlebaby eggs to prove that she's a good babysitter; Flounder is chosen as the team coach for the Royal Family Cricket Game.

Ariel and her friends volunteer to run Ravi's Juice Stand while he's away, but their lack of communication stirs up a big mess; Ariel tries to help Ayanna with a hair emergency on their family picture day.

Ariel grows frustrated when her little cousin Jewels visits and won't stop copying her; when King Triton declares Happy Crabby Day as a day off for all crabs, Sebastian must try to relax.

When Ariel doesn't want to sleep at a sleepover, she asks her Tantie Ursula to use magic to stop time so that bedtime never comes; Ariel learns the importance of family time when she misses a special dinner with King Triton.

Ariel tries to stop a pesky hermit crab from stealing her land treasures; when Ariel is tasked with being the royal banner carrier for Atlantica's parade, she thinks it's a small job and doesn't take it seriously.

When Lucia wants to earn a badge at Ursula's Magic Camp, Ariel and Ursula help her learn that keeping things small and simple is the best way to reach her goal; Fernie worries he won't do a good job in the Open Market Show and Tell after he loses his trusty fish facts notebook.

Ariel composes a celebratory song for Atlantica, but her overzealous efforts to assist Flounder in the All-Atlantica Swim Race teach her the value of letting friends progress at their own pace.