After triumphing over the Zonder Empire and Primevals, Gutsy Galaxy Guard faces a new peril when the malevolent BioNet emerges on Earth. Joining forces with the French team Chasseur, led by Renais Cardiff Shishioh, GGG, and GaoFighGar confront BioNet. However, their unity is tested as GGG's bases are attacked, and crucial technology is stolen by Mamoru Amami under the control of the formidable