Mainland undercover police Gong Wei (played by Jet Li) is unable to take more care of his seriously ill wife due to his work relationship, nor can he provide more care for his son Jiu Jiu (played by Xie Miao) who is sensible and highly skilled in martial arts. When his wife and children urgently need him, At that time, due to the order of his boss, Gong Wei pretended to be a criminal and broke up with the Hong Kong gangster captured in the mainland...