Demon Slayer: Mugen Train (鬼滅の刃 無限列車編 Kimetsu no Yaiba: Mugen Ressha-Hen) is a Japanese animated film based upon the Mugen Train Arc of Koyoharu Gotōge's Kimetsu no Yaiba manga series. The film premiered on October 16th, 2020, and serves as a direct, canon sequel to the TV anime adaptation. An English dub of the film was released on April 23, 2021.
After his family was brutally murdered and his sister turned into a demon, Tanjiro Kamado's journey as a demon slayer began. Tanjiro and his comrades embark on a new mission aboard the Mugen Train, on track to despair.