Modern office worker Wu Tong unexpectedly transmigrates into the role of Yun Ge, a pear seller in Yanggu County. He awakens with memories of the plot of Water Margin and knows that Wu Dalang is destined to be persecuted by Pan Jinlian and Ximen Qing. Taking advantage of Yun Ge’s familiarity with the streets and local residents, he begins secretly watching the movements of Wu Dalang and his wife, seeking to avert the impending crisis.