A mysterious gate rushed out of the trunk that was delivered to Nobita's house. Nobita and his friends pass through the gate, see a very nice tin hotel. They enjoy skiing and swimming at once. However ...

One day, Nobita picks a small rocket from which a small-sized humanoid alien Papi comes out. He came from the planet named 'Pirika' to the Earth to escape from the PCIA army of his planet. At the very ...