Yu Ping'an was imprisoned because his parents died tragically in a gambling accident and he was wronged. In prison, he learned a thousand skills from Qin Sanye, the king of Qin. After being released from prison, in order to find out the truth, he sneaked into the casino owner Lao Hei with the help of police undercover Chen Bing, and used the Thousand Skills Competition to get in touch with the Bai family behind the scenes. In the end, Yu Ping'an discovered that the real culprit of his parents' death was Baicheng, the head of the Bai family, and joined forces with the police to take down the criminal group and realize his original intention of "paying a thousand against gambling."