Zhang Dajin, a kind-hearted and easily deceived young man from Northeast China, was deceived by the pyramid scheme leader Bao Ge. Not only did his dream of getting rich be shattered, but he also owed debts to the entire village. In order to recover the money and repay the debt, he returned to his hometown with his sister Zhang Erxi, and his good brothers Chen Lianbiao and Yang Huazi to "go into the city for the second time". They had an urban adventure of "catching evil" with full of hilarious things while opening a bathhouse to earn "funds".