Synopsis
It is the year After Colony 196, and the battles between Earth and the colonies (known as the Eve Wars, as they occurred in late December of AC195) have ended. Treize Khushrenada is dead, and OZ has come to an end. This gives birth to the Earth Sphere Unified Nation (ESUN) and the Preventers police force (led by Lady Une). Seeing they won't be needed anymore, the Gundam pilots (except Wufei) send their mobile suits into the sun on a giant disposal satellite.
However, this peace would not last; at around the 1-year anniversary of the Eve Wars, a rebellion occurs on the newly-completed colony, L3 X-18999. Led by seven-year-old Mariemaia Khushrenada (who reveals herself to be Treize's daughter), the rebellion kidnaps Relena Darlian (who is now the Vice Foreign Minister of the ESUN) during a diplomatic mission to X-18999. As the Gundam pilots investigate further, they discover that Mariemaia is merely a puppet controlled by her grandfather: Dekim Barton, a former adviser to martyred colony leader Heero Yuy. Dekim plans to use X-18999 to go through with the original Operation Meteor, as a contingency plan in case the ESUN doesn't comply with his demands. The original Operation Meteor involved crashing a space colony into Earth, and allowing the Gundams to take control in the ensuing chaos. The Gundam pilots must prevent Dekim from seizing power over the ESUN.
The Gundams are retrieved by Quatre and the Maganac Corps and returned to Earth's orbit. While Heero uses Wing ZERO to battle Wufei (who has joined Mariemaia's army) in space, Duo, Trowa and Quatre use their Gundams to battle Dekim's forces on Earth.
In the end, Dekim is killed by one of his own soldiers, Earth and its colonies are at peace once again, and all mobile suits, including the Gundams, are forever destroyed.
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