The film is a remake of the 1989 "Doraemon" movie of the same name. In the story, Nobita is tired of being a failure so he decides to run away from home. All of his close friends, Giant, Shizuka, Suneo as well as Doraemon, are also having problems of their own, thus, they too decide to run away with Nobita. With Doraemon`s time machine, the gang travels all the way to the time before Japan was even born, which is 70,000 years ago, and there, they meet a new friend named Kukuru.