In the era of Mobile Suit Gundam Wing, the United Earth Sphere Alliance has maintained strict control over Earth and its space colonies for many generations. After the colonies attempted a revolt, their leader was killed. In the year After Colony 195, a group of defiant colonists initiates "Operation Meteor," dispatching five advanced mobile suits called "Gundams" to Earth. Built from the nearly indestructible Gundanium Alloy, these machines are meant to strike back against the Alliance and its subordinate organization OZ. During an aerial battle with OZ's top pilot, Zechs Marquise, one Gundam, piloted by an individual using the name Heero Yuy—the same as the late colony leader—crashes into the ocean. Upon reaching land, Heero meets Relena Peacecraft, the child of a peace-oriented political figure, who witnesses their arrival. Though neither realizes it at the time, this meeting will deeply affect both their lives and the future of Earth and the colonies.

In this installment

In the After Colony 196 era, one year following the end of the interstellar civil war, Earth and its colonies strive to uphold a fragile peace. The Gundam pilots—Duo Maxwell, Heero Yuy, Trowa Barton, and Quatre Raberba Winner—choose to discard their powerful mobile suits by sending them into the sun, believing their mission is complete. Yet this calm is disrupted when Mariemaia Khushrenada, the sole offspring of the late tyrant Treize, emerges and abducts diplomat Relena Peacecraft. Mariemaia unveils "Operation Meteor," a bold scheme to fulfill her father's ambition for global dominance. With aid from former antagonist Zechs Marquise and his mobile suit Tallgeese, the Gundam pilots must retrieve their suits for a final clash against the Khushrenada forces, including confronting their former ally Wufei Chang, who has sided with Mariemaia's goals.