ONG CHI CHUNG is originally a police with uniform. He is being transferred to the O Section(Criminal Organization and Triad Investigation Section), He always works alone and does not follow the normal procedure, Thus, his superior deliberately sends LAM WING TAI to work as his partner, YEUNG SIU HING is the targeted criminal for the O section. He manages the Wan Chai area. However, he dare to fight with Hunan Gang in Kowloon for protecting his own interest. CHUNG lets HING escape away for the sake of saving TAI. HING hides himself in Macau. This, he could not lead the robbery aiming at a jewelry shop. He asks CHOW KA CHEUNG to represent him. CHEUNG is also a cop as well as a good friend to CHEUNG. CHEUNG’s wife had already died. He puts his daughter at CHEUNG’s home. CHEUNG even adopts her. CHEUNG controls the robbery over a distance. However, they have to withdraw earlier than they planned due to the alarm……