As a child, Yu Xin loved riding in her father Zheming's taxi—the Apollo 11—feeling like she was on a space voyage through the city. After her father's death, Yu Xin discovers that he adopted a boy named Lin Si Liang. Driven by curiosity, Yu Xin decides to drive the Apollo 11 on one last space mission. When she reaches a desolate wasteland resembling the lunar surface, a strange boy's voice suddenly comes through her father's old radio. Just as the moon always shows the same face to the Earth, Yu Xin sees a different side of home.