Master Yuan Zhen Fei (
Geping Zheng) of the Yuan Martial Arts School lost his only son in an accident while his wife slipped into a coma. His eldest disciple, Duan Tian He (
Wenxiang Zhang), covets his title and plots to take over the school. Unknown to Master Yuan, Tian He is a killer on the run and has been hiding in the school. Second disciple Ou Jian Feng (
Andie Chen) is selfish and a trouble maker, he is expelled from the school by Master Yuan, and later sends his sister, Ke Lu (
Rui En) to infiltrate the school. Ke Lu is lazy by nature and sees through her brother's wicked ploy, refusing to help him. In the meantime, Master Yuan finds a worker at the fishery, Song Ya Zai (
Elvin Ng), bearing a striking resemblance to his dead son. He starts to treat Ya Zai like a son and wants the latter to succeed him. But Ya Zai lacks ambition and prefers a peaceful life. Soon, Ke Lu discovers a terrible secret about Ya Zai that will change everything.