Seeking undercover TV series. Two good friends in Hong Kong, one is undercover and the other is a policeman. The police are looking for this undercover. Undercover is also called Sam.

Mbth: in an instant

Date of production: 2004

Production company: TVB

Starring: Fang Zhongxin, Kevin Cheng, Yang Aijin, Tan Yaowen, Yoyo Mung, Wei Junjie, Chen Hao,

Number of groups: 30

Type: fashion gangster drama

I know this.