Ringo Chan Ka-Leung

A poor young man is wrongly charged with drug trafficking after being deceived. An ex-prosecutor investigates the case, uncovers a corrupt lawyer team's scheme, and restores justice despite obstruction from evil forces.

Cheung Sung-bong is a highly respected cop with a long history of success in dangerous cases. However, his past soon comes back to haunt him when a former protégé resurfaces, seeking revenge.

Ten years ago, Tong Waichong and Shum Aoming joined the ICAC together. They were trained together and they were brothers. Aoming was injured in a private act, and he resigned soon after, and has not been heard from since. Ten years later, Waichong has been promoted to the chief investigation officer, and led his subordinates such as Lee Zhunyi to maintain integrity and justice. When Waichong investigates a suspected bank employee corruption case, he discovers that Aoming is involved. It turned out that Aoming, relying on his past investigation experience in the ICAC, helped the criminal group to avoid the investigation of various criminal and anti-corruption agencies for many times. Waichong is distressed that his friend forgot his original intention of joining the ICAC to defend fairness and justice, and vowed to bring the criminal group to justice!

Hong Kong Customs and Excise Department officers Chow Ching Lai and Cheung Wan Nam share a close mentor-student relationship. On a case involving seized smuggled arms, Chow is sent to take part in a joint operation with Interpol to capture a reclusive arms dealer. However, Cheung makes a drastic decision that further complicates the case.

Champion competitive marksman Ken comes across an armored van robbery. He sees a policeman held hostage and shoots and kills four of the robbers. One of the robbers escapes and the policeman survives. The case is handled by Jerry Chang, whom Ken knows from having recently beaten him in a shooting match. Ken is found not guilty in court. Soon after, Ken is attacked by the escaped robber Pang Tao. Their confrontation reveals a very different background story and brings about a myriad of lies and traps and changes in relationships as Jerry and Ken try to outsmart each other.

Ho Sau, an undercover agent, has been working with Yau, a drug lord, for years, but his job and family are in trouble.

Ten years ago, Tong Waichong and Shum Aoming joined the ICAC together. They were trained together and they were brothers. Aoming was injured in a private act, and he resigned soon after, and has not been heard from since. Ten years later, Waichong has been promoted to the chief investigation officer, and led his subordinates such as Lee Zhunyi to maintain integrity and justice. When Waichong investigates a suspected bank employee corruption case, he discovers that Aoming is involved. It turned out that Aoming, relying on his past investigation experience in the ICAC, helped the criminal group to avoid the investigation of various criminal and anti-corruption agencies for many times. Waichong is distressed that his friend forgot his original intention of joining the ICAC to defend fairness and justice, and vowed to bring the criminal group to justice!