The story takes place in the early 1930s, when the underworld was rampant in Shanghai and various forces were mixed in it. Suddenly, a group of people who claimed to be grave keepers appeared. Because the national treasure they guarded was stolen, and they learned that the theft of the national treasure was related to Tianhe Company, they took the risk and clashed with Liang Jiajin, the new person in charge of Tianhe Company. Liang Jiajin has always adhered to the family rules and firmly believed that this matter had nothing to do with Tianhe Company. But thinking of his father's accidental death and his eldest brother's mysterious disappearance, he also felt strange, so he agreed to find the national treasure together. As expected, the national treasure was in the hands of Liang Jiabang, the eldest son of the Liang family. He wanted to sell the national treasure to the Japanese to make a fortune. However, the transaction scene was turned upside down by his younger brother, the gangsters, and the gravekeepers, and he died on the spot. Before his death, he personally confessed the fact that he had killed his father. Liang Jiajin didn't care about dealing with family affairs. He found the national treasure according to the clues he had mastered, and also designed to catch the gangsters who wanted to seize the national treasure, and return the national treasure to its original owner.