The film tells the story of Lao Wu, an ordinary bathing master in the "Minle Public Bathhouse" with a history of more than 30 years in a small town in Northeast China. He has superb skills and an optimistic personality. However, in order to save his son Binbin, who was in a coma after a car accident, Lao Wu resolutely went south to Shenzhen and took over the "Ocean Star" bathing center. Together with his three former colleagues, they fought side by side again. The "Four Heavenly Kings of Minle Bathhouse" who were not acclimatized to the local climate had a series of ridiculous stories in the modern metropolis in the south.