Hiroyuki Kudo, who works as a member of the private security organization E.G.I.S., has the ability to transform into three Ultraman: Taiga, Titas, and Fuma. The bond between Hiroyuki and Taiga deepened through their battles against numerous enemies. However, Hiroyuki was being targeted by someone. Knowing that, the New Generation Ultraman gathered one after another to save Hiroyuki. Hikaru, Shou, Daichi, Gai, Riku, Katsumi, and Isami. In addition, Taiga’s father, Ultraman Taro, came to Earth. However, Taro attacks his son Taiga! What has happened to Taro? And can Taiga fight his father?! Now, the New Generation Heroes challenge the power of darkness!