Heero rendezvous with the Wing Zero and flies to Earth to save Relena, but is intercepted by Wufei's Altron Gundam and forced to fight him. Duo, Trowa and Quatre get their Gundams back and help Zechs and Noin in their attack on the Mariemaia Army's captured fortress in Brussels. Heero eventually arrives, having convinced Wufei that they must bring an end to the conflict, and uses the Wing Zero's twin buster rifle to destroy the fortress' underground bunker shields. When the people of Earth arrive to declare their own desires for peace, Relena and Lady Une are able to convince Mariemaia that she is mistaken...