Be brave and keep the seas safe! Nixie can't wait to join the Royal Mermaid Rescue Crew. Along with a magical seapony partner, she'll save merpeople in danger and use her natural creativity to keep the seas safe! But then Nixie gets matched with Rip -- a super-speedy seapony who's at the top of his class, but also a strict rule-follower. Rip and Nixie couldn't be more different! Will Nixie be able to befriend Rip...or will she have to look for another fish in the sea?