Overview: WAI takes drugs at a friend’s home. Her friend, who is also a drug abuser, takes out a gun from his father’s cabinet and starts playing with it. Not long after, YAN and her colleagues arrive to carry out the gun-license check. YAN gets attacked and is held hostage. In the nick of time, the PTU crews come along. They have in fact come to arrest CHEONG’s attackers and happen to rescue YAN and her colleagues just in time. WAI is detained in a custodial ward. After being comforted by SIU-PO, WAI calms down a bit and begin to repent. MAN discovers that YAN’s mobile phone strap was broken in the gun-license check operation. He searches everywhere trying to find her a new one but all his efforts are in vain. As a last resort, he decides to make a phone strap himself. The PTU crews go to have dinner together, during which they come across a beer promoter called YIP LING-FUNG……