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
Jing Tian
Andy On
Ronald Cheng
Pau Hei-Ching
Collin Chou
Yang Zhigang
Terence Yin
Frankie Ng Chi-Hung
Zhang Hanyu
Ken Lo
Mak Cheung-Ching
Andrew Yan Hua
Tony Ho
