During the final moments of the Eve Wars, on December 24 of the year AC 195, the forces of the World Nation and White Fang clashed in a fierce battle. Treize Khushrenada, leader of the World Nation, was killed; Zechs Merquise, leader of White Fang, vanished; and Earth was spared from annihilation thanks to the five Gundam pilots' intervention. Having seen the devastation brought by war and hatred, the people of Earth and the space colonies set aside their conflicts and jointly established a new global government. Under this newly created Earth Sphere Unified Nation, a year of peace has passed. The government and citizens have disarmed, and nearly all remaining mobile suits have been scrapped. Choosing to do the same, Gundam pilots Heero Yuy, Duo Maxwell, Trowa Barton, and Quatre Raberba Winner load their powerful mobile suits into an asteroid and launch them on a one-way trip toward the sun. Yet even as they say goodbye to their Gundams, a new conflict is approaching.