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.。杜春辉这样说了虎哥不得不重视起来，队伍又回头撤了有两公里才看不到坟包，然后寻了处靠山角易守的位置停车建立临时防御点，不过这样一来距离县城就远了，怕携带的弹药量不足虎哥又命令带上五人专门背弹药，而楚翔、……