It premiered in Japan on March 8th, 1997, and was based on the 17th volume of the same name in the Doraemon Long Stories manga series.

The film opens with Nobita playing with a toy horse in the empty lot then cuts to Suneo boasting about his private ground to his friends.

When Nobita and his friends are distracted, Onigoro steals their city map, accidentally makes copies of himself in the Egg Factory and travels to the crater with them.

Meanwhile, Onigoro and his copies arrive at the crater, but find that it is not gold as they presumed, but instead a giant shape-shifting monster that attacks them.

When Nobita tries to save her, his hand slips and he falls inside the chasm and lands on a bush though not known to anyone, rendered unconscious.

The film ends with Nobita and his friends giving the responsibility of the planet to the living toys before heading back to Earth.