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.
Rento Kujo, an astronaut who issued a murder notice to the president of Cozmo Technica, died in an unfortunate accident. However, Hiroyuki discovered the truth behind the accident.
An alien group named Villain Guild, has planted a Monster Bomb in the city. A help request was then brought in to E.G.I.S. from External Affairs Division X.
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.
Gymaira emerges from the underground and defeats Taiga. Threatening to drain the world's energy, Hiroyuki and Maria must work together to defeat the monster. However, a meddler interferes.
Hiroyuki tries to leave EGIS because he thinks he is at fault for putting Homare in danger. Kana tries to persuade him otherwise, but a giant monster descends from a storm cloud.
Professor Motomiya is developing a device called "CQ" (Seek You), which can distinguish aliens from humans. She is targeted by a hitman, but someone from her past comes to protect her.
Someone new tries to join EGIS, but following Zetton's recent attack, he harbors hatred towards aliens. Kirisaki uses this situation to his advantage, as part of a greater plan to bring calamity to the planet.
Takkong rises from the sea and goes into the city, waiting to seal away an old foe who will return to destroy humanity. A mysterious boy approaches Hiroyuki, asking him to use his powers to help Takkong.
We take a look back at the adventures of Ultraman Taiga, Ultraman Titas, Ultraman Fuma, Hiroyuki, and the rest of EGIS before we look forward to their next adventure.
