Do you believe in mermaids?
Maddie Kruger does, but only in secret. After all, she has to be mature—everyone knows that they are just a fantasy creature. But her dreams become reality when, one day on vacation, she meets a mermaid, who tells them bad news: the three oracles have been stolen, plunging the entire ocean into danger and darkness! It's now up to Maddie and her three friends to explore the secrets of both sea and land to find the oracles and bring peace back to the oceans... before it's too late.