Astra, a winged mermaid-unicorn known as a "Mermicorno," sets out on an adventure to find her missing sister.

To get information on Pearl Girl, Astra strikes a risky deal with a powerful fish ... but gets more than she bargained for.

After the Mermicornos stumble across an eerie Ghost Town, a shocking surprise is revealed about Gwen's past ... and present.

Forced to take refuge in the Creepy Kelp Forest, the Mermicornos find themselves at the mercy of the mischievous Water Sprites.

The Mermicornos try to level up their powers in a magical training shell, but Astra's obsession with perfection puts them all in danger.

When Squishella is given the dream opportunity to become a pop star, she learns that fame comes at a cost.

The Mermicornos plan a heist to recover a Mermicorno artifact, but Kameko starts to doubt her value without powers of her own.

When Astra crafts a faulty Talisman, Squishella and Gwen are placed in a situation that hits too close for comfort.

After losing her ice powers from eating spicy ramen, Gwen takes desperate measures to get them back.

A town of seahorses mistakes Squishella as their fabled hero, which she fully embraces.

The Mermicornos meet a community of fish who have banned dancing, but Nautique shakes things up by teaching some moves to a rebellious kid.

The Mermicornos encounter a creature that plays on their anxieties, while Sawtooth attempts to drain the last fallen star.

The Mermicornos daringly attempt to rescue Pearl Girl from Ika Inkblot's lair ... but not everything goes according to plan.

As Astra struggles with the events of the Lunar Eclipse, Sawtooth wrestles over new insight from his past.

To obtain a relic that could lead to the Mermicorno Kingdom, Astra and Gwen journey into a secret vault under the Pearl Palace.

Kameko sets out to find her dad, while Nautique recounts his life post-Starfall with Squishella.

While Ika begins training Dark Pearl, Squishella enters a talent show -- but her determination to win has monstrous consequences.

After discovering she's part of a secret society of turtles, Kameko starts to wonder where she belongs when she doesn't fit in.

When the Mermicornos find a community of fish being bullied, Gwen takes matters into her own hooves.

The Mermicornos finally make it to the Mermicorno Kingdom ... but new revelations threaten to change the Mermi-Crew forever.

The Mermi-Crew set out in search of Valentina ... but soon realize that while finding her is easy, getting her to leave is hard.

Astra adopts a laid-back persona to impress Rip Tide and Sunsprite. Meanwhile, Squishella's jealousy leads to magical mayhem.

After discovering his creative side, Sawtooth must decide if he's a Hench-Shark or a Mermicorno.

As the Mermi-Crew readies to face Ika again, they're met with a surprise that may help their mission ... or cause them to fail entirely.

A cruel deception forces Astra to devise a risky plan to save the Mermicornos from being further torn apart.

In the final battle, the Mermi-Crew must come together -- or risk losing the ocean as they know it forever.