At the end of the Yuan Dynasty, the Yellow River changed its course and famine swept across the country. Xu Da, a peasant boy from Zhongli in Haozhou, defected to his fellow countryman Zhu Yuanzhang in troubled times and embarked on the road to war. From the internal strife in Haozhou City to the fire on Poyang Lake; from the setting sun in Pingjiang City to the city gates of Dadu in the Yuan Dynasty - he conquered thousands of miles of land for the Ming Dynasty throughout his life, and was more successful than any general, but he was always silent and cautious, as if walking on thin ice.