The third planet of the solar system—Earth. Countless ages have passed since the birth of humanity. Through tremendous advancements in science and biotechnology, humankind was supposed to be freed from conflict and suffering, ushering in an era of everlasting prosperity... or so it was believed. Chrono Year 2030. The Earth, once the cradle of humanity, is now on the brink of slipping from human hands. The number of survivors: 258. The number of remaining Gundams: 1.