Three new mobile suits, piloted by the Trinity siblings, appear on the battlefield and reveal themselves as the Gundam Throne Eins, Zwei, and Drei. Caught off-guard by the new Gundams' sudden arrival, the Union, AEU, and HRL forces are decimated and retreat. In order to secure a route of escape, Gundam Throne Drei covers the entire region in GN particles, causing havoc with enemy communications and preventing a counterattack. After escaping from the Taklamakan Desert, the rescued Gundam Meisters are anxious about the new units and disturbed about not knowing of their existence...