In a fantastical and magical undersea world, where a team of Mermicorno (enchanting half-Unicorno/half-fish creatures) join together to save the ocean from the threat of the evil Ika Inkblot.
In the new season, Astra struggles to master her evolving powers while navigating a growing conflict that threatens everything she loves. Joined by Gwen, Kameko, Squishella, and the rest of the crew, Astra must face hard truths, unlock ancient mysteries, and lead a risky mission to save their world. With unexpected revelations, magical mayhem, and heart-pounding battles ahead, the Mermicornos will discover that true strength comes from believing in themselves—and in each other.