HEUNG SHING and CHUN CHUN develop to be lovers. In addition he is getting on well and closely with WAH KONG. This has shaken his will to be the spy. He tries to resign from CHONG SIR but is rejected. CHEK NAM investigates all the victims' background and discovers lots of queries on the murderer. However he is still unable to collect sufficient evidences. Whilst HEUNG SHING is in a dilemma, he discovers HOK HIN is cooperating with an international illegal gang to execute some hi-tech criminal activities. He wants to inform CHONG SIR but HOK HIN gets known of this. Finally HEUNG SHING is killed. CHEK NAM is tragic and sad upon knowing the death of HEUNG SHING and his spy identity. He is very regretful for his misunderstanding HEUNG SHING in the past. Thus he swears he must take revenge for HEUNG SHING. CHUN CHUN is full of grief and pain because of her lover's death……