Gao Tianyang discovered an anomaly, locked the suspect Yu Xiaoyue, and investigated him together with Wu Xi. They found that Yu Xiaoyue had hidden the sample behind a beach chair in the park, and Gao Tianyang and others were lying in wait in the dark for their accomplices to show up.Soon, a man appeared in the park and took the sample, but this man turned out to be Huang Zicheng.Gao Tianyang was shocked. Huang Zicheng was Huang Jiaming's son and his younger brother who grew up with Gao Tianyang.
It turned out that Huang Zicheng and Yao Yao had received a new game task. They went to the park to pick up samples, then embedded the samples in thermos cups and sent them overseas.Gao Tianyang immediately led people to follow up, and with the cooperation of airport staff, Huang Zicheng's luggage was intercepted and investigated. The result showed that the sample was fake.Gao Tianyang realized that Huang Zicheng's transportation line was probably just a cover, just to get Huang Zicheng involved, and the real sample had already left through another transportation line.
Gao Tianyang and Wu Xi rushed to the research institute again and discovered through surveillance that the real sample had been taken away by a mysterious cleaner.The Technology Section searched for the cleaner's movements and found that the man was very alert and disappeared from the surveillance field of view after leaving the institute.The Technical Section continued the investigation, while Gao Tianyang and Wu Xi followed the suspect Yu Xiaoyue to an izakaya called “Hidden House”, where Yu Xiaoyue was dating her boyfriend Shi Lei.Gao Tianyang and Wu Xi pretended to be diners to spy on them, and the proprietress Jiahui warmly entertained them.