A.D. 2307. Orbital elevators have been constructed on Earth's surface by three gigantic economic blocs, which continue to play a huge zero-sum game for the sake of their own prosperity. Even in the 24th Century, humanity is unable to find unity. Into this world of never-ending war comes a private military organization holding up the ideal of "the eradication of war through military force." Possessing Gundam mobile suits, they are known as Celestial Being.