It has been twelve years since Ultraman Taiga disappeared into space in the fierce battle with Ultraman Tregear. Hiroyuki Kudo gets caught up in an alien incident during a mission...
Hiroyuki reunites with the little monster Chibisuke, who let its mind as a child in a surprising way. What was the auction of monster weapons among aliens and the shadows behind them?
Rento Kuji, an astronaut who issued a murder notice to the president of Cozmo Technica, died in an unfortunate accident. Hiroyuki saw the truth of the accident.
A monster bomb had setup in the city by "Villan Guild". A request was then brought in to E.G.I.S. from foreign affairs X outside of the organization specializing in alien cases.
The monster Segmeger gives the Tri Squad a hard time. Pirika meets with someone who isn't what she seems.