Season 1

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.

A man who wishes to returns to the stars has a run-in with an alien hitman.

Aliens discover an ancient monster sealed within a mountain in a village unmarked on the map. They plan to use the hidden power within a net idol to set it free.

Night Fang defeated Taiga and has put people to sleep, trapping them in nightmares. Ai Tennoji awakens her hidden abilities to grant Taiga a new power.

Someone from Homare's past has sought out EGIS to act as bodyguards. She brings along something very valuable and very dangerous, and the Villain Guild wants to get their hands on it.

Hiroyuki meets a painter who discovers his secret. However, he has something to hide as well...