The film tells the story of a modern dinosaur resurrection theme park opened in Tokyo during the summer vacation when Nohara Shinnosuke was five years old, ushering in an unprecedented dinosaur craze. At the Kasukabe river beach, Xiaobai also met a new friend-Nana. As the Kasukabe defense team and Nana get along, the truth behind the dinosaur park is revealed. A huge dinosaur suddenly ran wild on the street. Can they successfully resolve the crisis this time?