Mobile Suit Gundam 00 begins in 2307 AD. As fossil fuels became exhausted, humanity found a new energy source to change their situation: a large-scale solar power system with three enormous orbiting elevators. However, only a few large countries and their allies reaped the benefits. And even though it is the 24th century, humanity has yet to become one. In this world where war has no end, a private militia appears advocating the eradication of war through force. Each possessing a mobile suit Gundam, they are Celestial Being. The armed intervention by the Gundams against all acts of war begins.