Season 1

Japan terrorist NAOTAKE's meeting with the East Africa terrorists is not successful and they start a gunfight. Off duty police officer CHONG YAU-KIT discovers it but he stays calm. CHUNG YAT-KA, member of the Hong Kong …

YAU-KIT finds YAU-CHING acting strangely and he tries to capture him but YAU-CHING escapes. On the other hand, the East Africa terrorists and BLACK DOG join hands together to rob the bank. YAU-CHING discovers a bomb ins…

YAU-KIT falls in love with YAT-KA at first sight. He learns that ATF is recruiting new members. With the support of ATF supervisor KO WAI and his elder brother YAU-CHING, his application is successful and he will be hav…

In order to pursue YAT-KA, YAU-CHING and YAU-KIT are using different tactics. YAU-KIT waits patiently while YAU-CHING takes the initiative to date her. KO WAI learns that they might be expelled from the training camp an…

After the incident, CHI-NGO tries to make the training even harder for them. YAU-CHING and YAU-KIT are trapped inside a freezer. They are then asked to clean the kennel. YAU-CHING feels that CHI-NGO is against him. YAU-…

It is CHI-NGO's idea to invite the ATF trainees to join their work for he wants to give them a final test. In order to rescue the hostage, YAU-CHING and YAU-KIT ignore the instructions from their supervisor. After learn…

An important witness in the South Korea terrorists case is being killed and this prevents ATF from carrying out further investigation. YAU-KIT is very upset. YAU-CHING and YAT-KA console him. ATF tries to investigate th…

With the help of YAU-CHING, all the South Korea terrorists are captured by ATF. CHI-NGO is surprised that YAU-CHING has got some insider information of the South Korea terrorists but he did not question him. YAU-CHING m…

EDMOND suddenly dies at home and YIP TING helps to provide information to the police. After examining the dead body, it is confirmed that EDMOND has taken too much drugs. LOK-MAN bursts into tears after knowing it. Sinc…

LOK-MAN finally admits to YIP TING that she is abusing drugs and she promises to quit it. However, YIP TING doesn't trust LOK-MAN anymore. YIP TING discovers that her laptop computer is attacked by a hacker. After inves…

SUK-FAN is attacked by birds and she is sent to the hospital for treatment. KIM-HANG leaves the hospital after recovering from an operation. He wants YIP TING to stay by his side and he lies to her that EDMOND is the on…

YIP TING visits Professor WONG again but she is being rejected. She meets YAU-CHING instead who is visiting Professor WONG as well. The Hospital Authority reports to ATF that people who were in touch with the birds are …

KIM-HANG is very nervous to learn that YIP TING is injured during the gunfight and he rushes to the hospital to visit her. LOK-MAN feels that YIP TING is hiding something away from them but KIM-HANG believes that YIP TI…

KO WAI learns that YAU-CHING is fighting alone and he sends the Operations Unit to the safe house but they fail to find YAU-CHING. CHI-NGO has lost his confidence and everybody in ATF is desperate. YAU-KIT is upset that…

YAU-CHING has died and everybody in ATF is depressed. YAU-KIT tells SUK-FAN the truth but SUK-FAN cannot accept it. CHI-NGO is suspended from his duty and KO WAI is in charge of the Intelligence Unit instead. KO WAI ask…

Since YAU-CHING has died, YAU-KIT wants to take his place in the Investigation Unit of ATF but KO WAI rejects his request. YAU-KIT, SUK-FAN and YAN-MEI visit YAT-KA together. They discover that YAT-KA wants to leave Hon…

YAU-CHING wakes up to discover that he is staying in a remote hospital in China. YIP TING receives a secret letter from Professor WONG. Based on the information given by Professor WONG, YIP TING discovers that CHI-NGO i…

YAU-CHING wonders why Scaredy Bird knows the whereabouts of the safe house and he questions CHI-NGO. CHI-NGO admits that he has made a mistake but he is not giving any explanation. YAU-CHING tidies up the letters at hom…

YAT-KA helps YAU-CHING to hide away from ATF members and to steal information from the data bank so as to prove that CHI-NGO has committed crime. However, CHI-NGO suddenly arrives at the data bank as well. CHI-NGO tells…

CHI-NGO and the other ATF members go to the hospital to safeguard the Scaredy Bird member since he has just woken up. YAU-KIT discovers that WANG-LEUNG is sending message secretly. The spy tries to kill the suspect but …

YAU-CHING puts a bomb at ATF headquarters. When he runs away, YAU-KIT stops him by pointing a gun towards him. YAU-CHING has no choice but to shot YAU-KIT. When everybody returns, they discover that CHI-NGO is seriously…

YIP TING asks YAU-CHING to tell her who is the leader of Scaredy Bird but YAU-CHING only tells her the things about LAI-HIM. YIP TING meets YAT-KA and YAT-KA tells her everything she knows. YIP TING also tells YAT-KA th…

YIP TING recalls that KIM-HANG asked her to take something important at home before his death. She returns home and discovers that the place has been ransacked already. Luckily, the Scaredy Bird member list that KIM-HAN…

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 medicin…

In order to save his daughter's life, the professor decides to help LAI-HIM in developing his biochemical weapon. After developing the biochemical weapon and the antidote, LAI-HIM decides to carry out his plan. He invit…