In the summer of 1998, there was a huge flood in the Yangtze River. Three and a half-year-old boys jumped into the river and used their flesh and blood to block the swell, forming a life-long friendship.
The tycoon of Peking University, the mayor of Shoutu, and the Yangtze River boat king have experienced ups and downs in the past thirty years. From side by side to against each other, from the peak to the bottom, they finally returned to this river island and kept the promise they made in the flood.
