The story of Gundam Wing begins in the year After Colony 195, with the start of Operation: Meteor; the scientists' revenge against the OZ military organization. It centers around five young boys who have been chosen and trained by the five rogue scientists, then sent to Earth in extremely advanced Mobile Suits, one designed by each of the scientists, known as "Gundams". Their Mobile Suits are called Gundams, because they are constructed from a rare and astonishingly durable material known as Gundanium alloy, which can only be created in outer space.
The five Gundam Pilots, Heero Yuy (his code name, not to be confused with the assassinated leader), Duo Maxwell (not his original name, his current name came from elements in his past), Trowa Barton (also not his original name and was previously known as Nanashi (No-Name)), Quatre Raberba Winner, and Chang Wufei, originally have no knowledge of each others' existence, and on their first meeting, each pilot believes the others to be new OZ mobile suit designs. Once the young pilots realize that they have the same objective of destroying OZ and in some cases, are given the same mission, they band together to help each other complete their ultimate goal.