Jyulagi Cops: Gonglyongsidae Daemoheom

Peace in Light City is shattered when Gongchan and his friends discover suspicious merchants selling miniature dinosaurs outside their school. The sellers are the supposedly vanished Eobuba gang, and their Time Cube allows them to steal dinosaurs from 65 million years in the past, shrink them, and bring them into the present as weapons.

The villains then travel back far enough to attack the young Director Ju and prevent the Jurassic Cops from ever being created. As the heroes vanish from the present and Gongchan's group becomes stranded in the age of dinosaurs, restoring history itself becomes the only way to bring the Jurassic Cops back and stop a final assault by mechanized dinosaurs.