What did Xiao Yi go through in the third cycle?

Xiao Yi has experienced many difficulties and setbacks, such as poor working environment, difficult traffic conditions and poor living conditions. But Xiao Yi never gave up, worked hard with his teammates to overcome all kinds of difficulties, and finally built an excellent railway line across the north and south. Three-line Samsara is a film created by several young artists through collecting and studying some folk artworks collected by Jiangnan Museum. The film story tells the story of Xiao Yi's hard work on the third-line railway in Ningyulin.