Kabaneri of the Iron Fortress: The Battle of Unato(2019)

甲鉄城のカバネリ 海門決戦

In the midst of an industrial revolution, the people of Hinomoto fight hordes of undead creatures, known as Kabane, using powerful armored trains. Half a year after the events of the original TV series, the heroes of the Iron Fortress attempt to take back Unato Castle.