Forced to be a Kamen Rider again to save the world when a Time Jacker alters history, Sougo must now work with another Kamen Rider from another world.2019年,世界被人工智能Humagear统治,身处不同世界的假面骑士ZERO-ONE和假面骑士ZI-O奇迹般地相遇。虽然二人都是为了拯救世界,但等待着他们的究竟是携手...