In the bright summer days, a group of teenagers swim lengths in the swimming pool. Their spirit is united for the upcoming swimming gala. Before they formed this team, someone had left the group and someone had even thought about giving up swimming.

The ‘Angels’ faced many difficulties before becoming a proper team. The team founder, TAK, has two daughters. His elder daughter, HAN (CHAN MAN WOON, BO BO), frequently argues with her younger sister, WING (TONG LEILA), who has been separated from the family for many years. They are both in love with the team captain, LOK (SIU EDWIN). WING used to live with her mother. When she finds her father, she is disappointed with the new family. She fights with HAN constantly and joins the opposing team, the ‘Devils’, to annoy her.

　　游德是泳队的创办人，早年与妻子离婚（邓萃雯 饰）。大女儿游娴（陈文媛 饰）留在父亲身边，次女游颖（唐宁 饰）则跟着母亲生活。颖一直不喜欢自己的父亲与姐姐，更常常与他斗气，意想不到的是两姐妹同时爱上了队友Edwin（萧正楠 饰）。一向迁就妹妹的娴因此与Edwin保持了一段距离。

　　颖是游泳健将，但颖一直不相信父亲不修边幅的样子就是当年的飞鱼王子，于是她加入了与父亲对立的泳队。两个泳队都为了最终的游泳大奖赛努力，这时游德队里不够人参加比赛，娴虽然对游泳颇有研究，可是长短脚的她极少游泳。这时她希望妹妹能够回到自己的队里帮父亲胜出比赛。在姐姐的努力劝说下，颖才放弃了原来的队，加入到父亲的队里。

　　可是这时发现，颖的神经系统受药物所损，而药物正是原来泳队坚持服用的，但比赛迫在眉睫了…