King of Braves is Born!
The criminal organization BioNet steals one of the Q-Parts being researched at CERN. This episode serves primarily to introduce the changes to the main cast since the end of the series. Guy debuts in his new Super Mechanoid GaoFighGar, a combination of upgraded GaoMachines and the reconfiguring jet PhantomGao that was built to replace Galeon after the latter's departure from Earth at the end of the series.
Aired 21/01/2000EP 1 - King of Braves is Born!
The King of Braves: GaoGaiGar Final
Following Gutsy Galaxy Guards victory over the Zonder Empire and the 31 Primevals, a new threat makes their appearance on Earth. GGG - with Guy Shishio and the newly-constructed GaoFighGar - team up with their French counterpart Chasseur to battle the evil organization BioNet. Among Chasseurs ranks is Renais Cardiff Shishioh - a former BioNet cyborg with the relentless pursuit of destroying those who took away her humanity. But as GGG and Chasseur fight the BioNet, GGGs bases around the world are suddenly attacked, and the recently-discovered "Q-Parts" and the original Gao Machines are stolen by Mamoru Amami, who has been abducted and cloned by an even greater threat known as the "Eleven Kings of Sol." Evicted from Earth by the United Nations, GGG must now travel to the far reaches of the galaxy to battle the Eleven Kings of Sol and save Mamoru before its too late.
(Source: Anime News Network)