Antique restorer Lu Chen is stranded in Nanyang, accidentally tangled in a black market conspiracy and held hostage and blackmailed by villains. Relying on extraordinary treasure appraisal skills to save himself from a desperate situation, he gets to know partners like Shen Qingci and Wen Li, breaks into underground auctions, goes deep into jade mine areas, successively exposes all kinds of forgery traps, clears up old gray cases such as embezzling collections and illegally detaining people, joins forces to establish a joint public account for Chinese merchants, breaks the underground unfair rules, and guards the property and peace of overseas compatriots.