Kamen Rider Build: Be the One

بعد از جنگ داخلی ژاپن فرمانداری جدید سعی دارد تا دوباره کشور را متحد کند ولی یک فرقه تبهکار سعی دارد همه چیز را نابود کند و ....

After the civil war that tore apart Japan, the new governors of Touto, Hokuto and Seito work together to reunify the country. But they are actually members of an extraterrestrial race called "Blood Tribe", the same species as Evolto who arranged their government positions to commence their plan to destroy Earth as they have done to Mars and previous planets before.