Song Ming, a junior student in the history department, accidentally traveled through time while studying ancient scrolls from the Song Dynasty, and turned out to be Song Jiang, who had just killed Yan Poxi and was imprisoned in Yuncheng County. The musty and rusty smell of the damp cell and the taunts of the guards reminded him that he was in a desperate situation - in two hours, he would be transported to Jeju for conviction. Song Ming, who was well aware of the plot of "Water Margin", knew the tragic ending in which Song Jiang and the Liangshan brothers were eventually poisoned to death and fell apart. He did not want to repeat the same mistakes, and he wanted to use his understanding of the direction of history to lead the Liangshan brothers to avoid the dead end of recruitment and create a different future.
In order to survive, Song and Ming first showed weakness to the Chaoyong King, and mentioned Zhu Tong and Lei Heng on the grounds that they were entrusted to take care of their old father, laying the groundwork for their escape. When Zhu Tong and Lei Heng arrived, Song Ming knew that the key opportunity to change his destiny had arrived. Can he convince the two of them to let him go by relying on his familiarity with the character's character and prediction of the future? How will this time-travel counterattack that started in Dalao rewrite the historical trajectory of Liangshan and the Song Dynasty?