A new menace, the Mechanizing Empire, has arisen. Based on the moon, they sent monsters to Earth to mechanize it. In the meantime, Eldran had been fighting against the Mechanizing Empire in the world of 64 million years ago also. Eldran orders his classmates in the 6th grade in Harukaze School to save the present day and gives them the transforming robot Gosaurer to do it with.