S1 • E1
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.
S1 • E2
Lucia earns a badge at Ursula's Magic Camp. Fernie loses his favourite book.
S1 • E3
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. Ariel leads a parade.
S1 • E4
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.
S1 • E5
Ariel grows frustrated when her little cousin Jewels visits and won't stop copying her; Jewels copies Ariel. When King Triton declares Happy Crabby Day as a day off for all crabs, Sebastian must try to relax. Sebastian relaxes for a day.
S1 • E6
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 preps for picture day and tries to help Ayanna with a hair emergency on their family picture day.
S1 • E7
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.
S1 • E8
Despite King Triton's warning, Ariel uses magic to clean her room; Ariel and her friends befriend a shy clam.
S1 • E9
Ariel makes a friend. 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. Ariel plays patty clap
S1 • E10
A birthday party mishap. Ariel helps Ravi and his best friend Navi clear up a misunderstanding; Flounder is a cook and uses his cooking skills to help other chefs at the Atlantica Food Festival.
S1 • E11
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.
S1 • E12
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.
S1 • E13
Ariel tracks down a mythological sea creature; Ariel and friends get a substitute teacher in music class.
S1 • E14
When Fernie doesn't believe in the Kite Monster legend like his friends do, he starts to ruin their fun; Flounder uses Ursula's magic mirror to play a trick on his friends.
S1 • E15
When Fernie forgets his comfort blanket at home, he puts on a brave face in front of his friends by saying he doesn't need it to fall asleep; Lucia makes two other versions of herself so she can be at three different playdates at once.
S1 • E16
Ariel really wants to keep a lost dogfish that she finds; a visiting mer-boy joins Ariel and friends on a Swim Scouts field trip.
S1 • E17
Ariel and Triton spend Daddy Daughter Adventure Day together; Ariel and her friends explore the Rainbow Sea Caves.
S1 • E18
When Flounder forgets to send his Christmas letter to Santa Mer-Claus, Ariel and her friends go on a holiday adventure to deliver the letter to him; Sebastian accidentally donates the box of toys that Ariel wants to keep.
S1 • E19
Ariel gives her plant magic food to make it grow for the Great Big Garden Show; Flounder fakes being sick.
S1 • E20
When Lucia helps Ursula with a new magic spell, she creates magical mayhem; Ariel and her friends are tasked with building a float for Ravi's latest juice drink.
S1 • E21
Jewels brings down the fun; Lucia gifts a new shawl to her Abuelita.
S1 • E22
Ursula gets sick; Ariel and family take a road trip.
S1 • E23
Ebb and Flo compete; Fernie wants to play by himself.
S1 • E24
Ariel struggles with a Father's Day gift idea for Triton; Ariel and her sisters want to celebrate a very special Tantie's Day by doing nice things for Ursula.
S1 • E25
Ariel runs a petting zoo; a new kid won't take turns.
S1 • E26
Nana Xola leads a family treasure hunt; Remy gets big feelings and learns to deal with them.
S1 • E27
Fernie seeks seahorse unicorns; Ursula creates a game for Ariel and friends.
S1 • E28
Flounder helps Chef Louis; Flounder becomes Super Flounder.
S1 • E29
Lucia borrows a special wand from Ursula; Remy does not follow the rules.
S1 • E30
Ariel hosts a visiting dignitary, then rescues her family.
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Ariel
Flounder
Lucia
Fernie
King Triton
Sebastian
Lucia
Ursula
Ayanna
Alanna