Watch LookMovie. After "Old Tang Tou", Xu Tong continued to film the family of Old Tang Tou's son, Tang Laosan, in Northeast China. Tang Laosan was sent to prison for a murder case, and Tang Laosan's son, Xiaobao, unexpectedly encountered such a change in the year of his high school entrance exams, which made the fates of father and son both unpredictable.