The long-rumored bronze treasure "Emperor Shang Axe" appeared in Xiangzhou. The cultural relics department attaches great importance to it, the foreign cultural relics smuggling organization also secretly observing it and sent people to infiltrate into Xiangzhou to plunder it. In a short time, the small city Xiangzhou became enveloped in conspiracies. The City Public Security Bureau, to avoid losing this national treasure, set up a major crime unit, headed by female detective Zhou Yannan to go undercover in Xiangzhou. Sui Zhengtang, the owner of Changde antique store, who is money-driven, used tomb raider Ma Xiaohei and foreign spy Shen Xue to seize the axe, setting up a lot of traps for the major crime unit. In the face of such a complicated situation, the major crime unit under the leadership of Chen Shijie, the deputy director of the municipal public security bureau, and Zhou Yannan, time and again uncovered the enemy's conspiracy and finally wiped them out. The crime team successfully recovered the genuine "Emperor Shang Axe" while solving the case and arresting the criminals....