Japan in 1910, industrialization is unstoppable and devastating entire areas in the name of progress. In X, a farming village in Ibaraki Prefecture, the environment is so polluted that the plants in the fields die and the air, which is laden with toxic smoke, can no longer be breathed. But Saburo, the grandson of the village elder, can no longer put up with this and forms the resistance of the villagers. In Junpei, the idealistic employee of Hitachi, he finds an unexpected ally, and together they fight for a way to save the village.