A career-long undercover Hong Kong cop is sent to Mainland China when his former protégé becomes the primary suspect in a murder.
Donnie Yen
Dragon Chan
Jing Tian
Fang Jing
Andy On Chi-Kit
Sunny
Ronald Cheng Chung-Kei
Captain Zhang
Nina Paw Hei-Ching
Amy (Long's Mother)
Collin Chou
Cheung Mo-Hung
Yang Zhigang
Lei Peng
Terence Yin Chi-Wai
Terry
