YAU-CHING tells YAT-KA that he has found WANG-LEUNG. In order to find the truth, YAT-KA tries to get information from DR.KING. YAU-KIT follows DR.KING and he discovers that WANG-LEUNG is trapped for trying their medicine. YAU-KIT tries to save WANG-LEUNG but CHI-NGO suddenly arrives to stop him. YAU-KIT finally knows why YAU-CHING has betrayed ATF and he decides to support his work. YAT-KA hopes that YAU-CHING could leave Scaredy Bird and run away with her. However, YAU-CHING continues to help LAI-HIM and he kidnaps the young girl with YIP TING. YAT-KA discovers LAI-HIM's plan and she tries to stop it. LAI-HIM is enraged and he traps her in the drug factory. YAU-KIT carries out investigation on the young girl's family and he discovers that her father is a famous professor in virology. LAI-HIM threatens him to help with their research.