Mako is a magical Island that a pod of mermaids call home. Their peaceful lives are turned upside down when Zac, a merman develops a connection with the island that poses a threat to their existence.

While Sirena strives to keep the mermaid pod’s trust, new mermaids, Ondina and Mimmi, arrive with a single mission: strip Zac of his merman powers and reclaim Mako Island for their pod.