Be brave and keep the seas safe! Princess Lana loves attending the Royal Mermaid Rescue Crew School, but she has a hard time speaking up in class, even when she knows the answer. Maybe she's too timid to be a Rescue Mermaid? Then Lana meets another misfit -- a funny horned creature named Spike. Lana helps Spike learn that he's a narwhal, and when he asks for help finding his way back to the Arctic, she's happy to swim along. A trip will help her forget her school worries for a while. The Northern Seas are full of new adventures -- but also an emergency! Can Lana finally find her voice and save the day, or will she freeze up?