Hon-sam and Sam-yuen defuse the bomb crisis as they have good rapport. The bomb case is concluded. Sam-yuen encourages On-na to pursue her dream, causing On-na to remind herself of her ambition when she first joined the police force. Tat-wah accidentally accepts an assassination job on Pak-keung. He goes to some old housing estate to reminisce about the old days as he knows he is most probably going to die. He runs into On-na, who has come to explore her roots. Actually, the duo already knew each other many years ago. But they do not recognize each other. To turn down the assassination job, Tat-wah slyly causes himself to be detained at the police station. But his scheme fails, and he then tells On-na some news about Ho-nam’s drug deal. On-na is assigned to a new department as she has solved a case and earned brownie points. But her boss is confrontational Hon-sam!