Gil (Gillian Chung) is a girl who tries to take her own life after being dumped by her boyfriend for another girl, Brenda (Chrissie Chow). Gil gets rescued by a water deity, and believes she has received special powers. Even though she doesn't even know how to swim she enters the Fantastic Water Babes swimming competition, in an vengeful effort to compete against her romantic rival and her friends, and to get back her boyfriend. To master swimming she kidnaps swimming champion Kwok Chi Yuan (Alex Fong Lik Sun) to the island of Cheung Chau, to make him teach her and her friends how to swim.
鍾欣潼
as Gillian Law Kiu
方力申
as Kwok Chi Yuan
黄圣依
as Jade/Yuk
Hyper BB
as Florence
Chu Fun
as Flora
雷宇揚
as Cheng Cheong
馮德倫
as Hanna
田亮
as Water Guan Yin
唐詩詠
as Helen
Janet Ma
as May Cheng
周秀娜
as Brenda
Calvin Sun
as Ramsy
