Zac is a teenage boy who decides to camp on Mako Island, unaware that three mermaids, Sirena, Nixie and Lyla, who are guardians of the island, are watching him. That night, when the full moon rises, the boy comes into contact with the magic water of the Moon Pool. The following morning, Zac wakes up discovering he has become a merman with a fish-like tail and the ability to control and manipulate water. His new-found merman abilities will cause problems for the mermaids.　　The three mermaids, curious about living on land, are transformed into humans while in the moon pool during a full moon, now having the ability to live like humans.。楚翔不敢跟的太近，他只能远远的降落在另一处山峰，仗着超强的目力观察胖子，只是目力再强在远距离下也会出差错，白光一闪那家伙竟然消失了，楚翔着了急，立刻飞过去，到了近前才看出眉目，原来不是胖子传送走，而是……