This story is a true story of father and daughter through time and space. Although the theme of "love through time and space" has been ruined by countless romantic fantasy online novels, this film can make people cry, because it is so pure and true, and our lives are so similar. Cooper did not embrace "my journey is the stars and the sea" lingyun ambition, just want to finish the task as soon as possible back to her daughter to accompany her growth. In the fall of the human crisis, Murphy's ultimate haven is still the place where he and his father have the most memories.