The year is 2307 A.D. Earth's fossil fuels have been depleted, but humanity has obtained a new source of energy to replace them, in the form of a large-scale solar power generation system based on three huge orbital elevators. These orbital elevators belong to three superpower blocs who continue to play a grand zero-sum game for the sake of their own prestige and prosperity. Thus, in the 24th Century, humanity has yet to come together as one. In this world of never-ending conflict, a private armed organization appears, dedicated to the elimination of war through armed force. Its name is Celestial Being, and it is in possession of "Gundam" mobile suits. With these Gundams, it begins armed intervention into all acts of war.