Batman Ninja (2018) on Netflix

Plot summary

While Batman fights Gorilla Grodd at Arkham Asylum, Grodd's time displacement machine, the Quake Engine, throws him into feudal Japan. Ashigaru soldiers in the Joker's service chase him until Catwoman finds him. She tells him the others arrived two years earlier, because he was caught at the outermost area the machine affected. Gotham's leading criminals deceived the Sengoku daimyo and now hold the land as feudal lords, battling one another until a single state remains. To keep them from changing history, Batman and Catwoman set out for the Quake Engine, which sits in Arkham Castle, the asylum in its new form. Alfred Pennyworth is in the past too and has built a Batcave outside Edo.