SunnyCat invites Gabby to a Mermaid Sparkle Party in Mermaid-Lantis! But to attend, she needs to bring MerCat's blue crystal — and her special sparkle.

Gabby and Pandy learn all about snow science when they take a cruise to the North Pole to see a rainbow igloo that Pete the Polar Bear and CatRat built.

The Box Family welcomes its newest member: Benny Box! When Mama Box needs a nap, Gabby and Pandy teach Baby Box how to babysit her new brother.

Gabby's going on a mermaid cruise! There are a ton of fun activities to do aboard the ship, like making mer-mazing crowns, tails and treats.

When Gabby receives a fishbowl in her Meow Meow Mailbox, CatRat wants to use it as a home for his itty bitty kittyfish. But they keep hiding!

Santa Kitty is on his way to the Mermaid Christmas Cruise to give the first present of the year to MerCat's baby sister Hsiu Hsiu — and we're invited!