Ultraman Taiga The Movie: New Generation Climax (2020) on Netflix

Plot summary

The New Generation Heroes' era is nearing its end. Hiroyuki Kudo is a member of E.G.I.S. He can transform into any one of the three fighters of the Tri-Squad: Ultraman Taiga, Ultraman Titas, and Ultraman Fuma. Their bond has grown deeper in every battle they have shared. An unidentified opponent has made Hiroyuki its target. More Ultra Heroes of the New Generation arrive one after another to stand with the Tri-Squad against a great darkness, and Ultraman Ginga and Ultraman Victory are among them. Taiga's father, Ultraman Taro, has come to Earth as well, and under mysterious circumstances he attacks his own son.