Jiang Cheng, possessing the supernatural ability of antique appraisal, visits an antique flea market and exposes stallholder Uncle Sun's scheme of peddling a large batch of fake Yuan Shikai silver dollars, also seeing through his collusion with a shill to drive up prices through acting. Going along with the flow, Jiang Cheng buys the entire lot of silver dollars bundled for five thousand yuan, successfully scoring a treasure hidden at the bottom of the goods pile: a genuine, signed Republic Year 3 edition Yuan Shikai silver dollar. He takes the silver dollar to an antique shop for authentication, and the treasure is valued at 4.5 million. Upon learning the truth, Uncle Sun chases after him wanting to renege, but the deal is already done, ultimately leaving him regretful, furious, and fainting, staging a hilarious farce of a treasure-hunting coup.