The mermaids are getting an official winter makeover. Thanks to their cool new winter tails, Kishiko and Harmonique are able to ride through the snowstorm surrounding Wintera. In this underwater arctic environment, they meet the fabulous color changing mermaids Nera, Crystabella, and Gwen. These new mermaids reveal that the key to the color change lies in opening up and getting in tune with your emotions. But sadly, knowing this information doesn't make it any easier to master, and the mysterious color thief is closing in. Meanwhile, Riviera heads to the finball court with Jordie in search of inspiration for her new song. Can these Mermaze Mermaidz harness their powers to save Mystic City? Dive in now to find out.