A mother and her son face a destroyed world of dangers living day to day of an endless nightmare. Relying on their instincts, motivation and adrenaline; their bond grows stronger as the obstacles become more and more difficult, some that can’t be overcome.

After learning martial arts, Fong Sai-yuk comes back to Zhaoqing and gets immediately involved in a corruption case. The Governor of Nine Gates is ordered to lead a squad to kill witnesses and destroy the evidence. Fong Sai-yuk’s friends are killed, and his parents are arrested. Faced with such challenges, he and Lui Ting-ting decide to fight against the villains with all they’ve got.