![Anh Hùng Trở Về](https://img.ophim1.com/uploads/movies/anh-hung-tro-ve-thumb.jpg)
During Second Sino-Japanese War, China suffered from cholera outbreak because Japanese uses it as an biological weapon. Four Chinese agents captures a Japanese scientist and his bodyguard and interrogate them by Chinese opera in order to get the vaccine formula. Written by tom0902000