Real-life mermaids, Nixie, Sirena and Lyla are a portion of a pod, which resides in Mako Island's seas. As young members of their pod, it is their job to protect the Moon Pool and shield it out of trespassers. But at the night of a full moon, the mischievous mermaid girls fail their duties. Sixteen-year-old land-dweller Zac enters the Moon Pool and forms a reference to Mako.Zac has been given powers and a fishlike tail. Even the mermaid pod is forced to leave Mako, leaving the 3 mermaid women, throw out of this pod. They understand there is only one of the ways they'll soon be allowed to re join the pod: they need to purchase legs, venture on property and return the abilities of Zac -- or risk being outcasts forever.