Project G4 was a double bill with Hyakujuu Sentai Gaoranger the Movie: The Fire Mountain Roars. Shouichi encounters a teenage girl called Sayaka Kahara, who ran away from a military facility because of an attack by the Ant Lords. Sayaka has a supernatural ability to foresee the future. Risa Fukami, of the military group GA, wants to use that power to enhance the newly made G4 System, which was based on designs stolen from Ozawa. Now, Agito and Gills must fight to stop the Ant Lords' attack, as G3 and G4 settle their score. The events of the movie happen in the late 30s–early 40s after the special.
