Caveboy loves banging his club, running really fast, and playing with his friends, but when his club breaks, he needs to find a new one, leading him to making a new friend and discovering his own bravery.

Mermicorns Serena and Lily try to use simple invisibility magic while doing a school project about magical mistakes, and learn a powerful lesson about using magic responsibly.

Shelly is hosting new student Leeza, a grrmaid, at her house, but becomes jealous when Leeza seems more interested in being friends with Coral and Angel.

Mermaid kittens and best friends Angel, Shelly, and Coral dive headfirst into working on their art project together, until their fun is nearly ruined when they run into their rivals, a trio of purrmaids called the Catfish Club.

"Cake and Pie must battle it out to determine who gets to be the favorite dessert"--

Purrmaid Shelly is taking care of sea horse and new class pet, Bubbles, who looks mysteriously unwell; luckily Shelly and her two best friends discover how to perk Bubbles up, and in the process learn why some animals are not meant to be pets.