Ultraman Gaia is a Japanese tokusatsu TV show and is the 13th show in the Ultra Series. Created by Chiaki J. Konaka and produced by Tsuburaya Productions and Mainichi Broadcasting System, Ultraman Gaia was aired on JNN TV stations from September 5, 1998 until August 28, 1999, with a total of 51 episodes.

After the battle against Zogu was over, both Gamu and Fujimiya began to live normal lives until another threat arrives on Earth - a surviving monster soldier of Zogu's army named Gakuzom.