A young boy, Lele, goes missing in the Changbai mountains after an argument with this father. Approaching the vital 48 hour mark and with no sign of Lele, his father takes it upon himself to brave an upcoming avalanche to save his son
A street kid called Little Swallow is rescued by a good man named Zhuzi. They together go on a journey to survive, but later Swallow finds out about his past that reveal a horrible truth.