After her adopted son, Er Dong (Li Jun Bai), joins a gang, a single mother in rural China sends him to a Christian school, hoping he'll shape up. Er Dong soon falls for classmate Chang'e, and when the two run away together, they battle to survive. They aren't allowed to marry at 19, and Chang'e becomes pregnant -- but their child will not legally exist. As problems pile up, Er Dong struggles with fatherhood and a shocking secret from his past.