Zhu Tong is at the bottom of his class and is mischievous. Ten thousand fantasies appear in his little head every day. However, one day, he found that his head teacher was chasing aliens in the corridor, the flowers in the lawn could talk.

Ten-year-old Wo Tu dreams of having a water pistol like other boys in his village. Even though his father promised, he fails to bring one from the city. But there is one hope for Wo Tu: his dying grandfather assures him to grant him the wish as a ghost. After his death, the old man visits the boy in his dreams, initiating a treasure hunt. Soon, the limits between reality and dream, past and present, become more and more blurred. A portrait of the profound love for the land, across three generations of a family in modern Chinese rural life.