The young 'Song of the Kings' who came out of Xiangfuchuan came to Beijing by chance to participate in an commemoration of the educated youth, and unexpectedly opened a past 30 years of dust. When the mother and the child meet, Li Xia hopes to be able to tell the family, who knows that He Susu is unable to face the trauma of the past, and has repeatedly escaped. The appearance of Lixia is undoubtedly an accidental intrusion, but she only wants to choose to forget. On the mountain road that left, there was a desolate, long-distance Xintian tour in the ear. The song is like a river, a river bed that slowly rises over time, and like an invisible road, leading to everyone's heart, the place that most wants to arrive.