Ep 20. E 20

Last year on a train, three robbers stole a passenger's luggage, and fled soon after. The police are still unable to track them down and have labeled the case as a cold one. However, six months after the case, a man by the name of Lai San Yang comes forward to the police with an important piece of information. He claims that he witnessed two of the robbers, and is willing to provide the police with descriptions of them.

At the same time, a wealthy businessman by the name of Yun Song Jun starts to receive threatening messages from an unknown person. The person demands Song Jun to transfer money to an account, or they will upload photos of his daughter to the internet. The police launch an investigation into the matter, and trace the IP address of the messages to an internet cafe. Upon reaching the cafe, they find that the computer used to send the messages has already been wiped clean.

In an attempt to solve both the cases and capture the robbers, Huang Zhong Tian and his team start to dig deeper into the matter. As they investigate the case, they come across several leads that hint towards who the robbers might be. However, they soon realize that there are several people involved in the case, making it harder for them to catch the culprits.

Meanwhile, Lai San Yang, who had come forward to provide information to the police, starts to receive threatening messages himself. The messages demand that he keeps quiet about the case, or else he will have to pay the price for his actions. Confused and terrified, Lai San Yang seeks the help of Huang Zhong Tian, who promises him that he will look into the matter and protect him.

As Huang Zhong Tian and his team continue their investigation, they come across several clues that lead them to the internet cafe, where they finally manage to identify the robbers. They realize that the robbers had been eavesdropping on the cafe's network, and had set up a trap for Song Jun to fall into. With the evidence they have gathered, they finally arrest the robbers and close the case.

In the end, Huang Zhong Tian manages to protect Lai San Yang and help Song Jun out of his predicament. As the episode comes to a close, we see Huang Zhong Tian's team celebrating their success, and Huang Zhong Tian reflecting on the case, and how it showcased the power of technology in modern-day crimes.