Thousands of People live on giant orbiting space colonies called "Sides." However, the Earth Government, which rules the colonies, is unjust and cruel. A group of revolutionaries builds five robotic Gundams and plans to send them to Earth to begin their fight for independence. Piloted by five young men, their hopes and dreams of freedom of the colonists with them as they descend to Earth to begin Operation Meteor!

A group of revolutionaries build five robotic weapons called Gundams and plans to send them to Earth to begin their fight for independence. Piloted by five young men, these Gundams carry the hopes and dreams of freedom of the colonists with them as they descend to Earth to begin Operation Meteor!

Treize has been arrested for speakin out against the Romefeller Foundation, but he escapes with the help of loyal troops. Now, Romefeller has declared Treize an enemy along with the Gundams, and they launch Operation Nova to end both threats. Heero and Quatre return to Earth and find themselves the targets of Romefeller, and are forced into battle once more.

Despite Heero and Quatre in the Sanc Kingdom helping Relena promote her goals of pacifism, the pressures are too much and it looks like the Romefeller Foundation is going to win. But there are now many forces moving against them. Duo continues his lonely fight in space, and Zechs once again steps onto the Battlefield.

The year is After Colony 196, and for one year the Earth and its colonies have experienced an unprecedented age of peace. No longer needing their weapons of war, the Gundams are jettisoned into the sun. However, even in the silence of space, the drums of war can once again be heard. Rallying behind a new leader, the Barton Foundation has once again risen to threaten the peace of the Earth Sphere.

With the colonies at peace, tranquility has spread through Earth. No longer needing their weapons of war, the Gundams are sent into the sun to be destroyed. But a high-ranking official is kidnapped by a colony with aspirations of total domination! The pilots and their allies find themselves called into action once again. The Endless Waltz has begun!