خلاصه داستان : پس از یک نسل صلح، مستعمرات فضایی جدید فدراسیون زمین به میدان جنگ تبدیل می شود. سیبوک آرنو، جنگجوی بیمیل، برای نجات دوستان و خانوادهاش، خلبان گاندام جدیدی میشود که اسم رمز F91 را دارد...
U.C. 0123. After a generation of peace, the Earth Federation has begun to build new space colonies to house humanity's growing population. But a new force, the aristocratic Crossbone Vanguard, plans to seize the colonies of the newly constructed Frontier Side for itself. As their home becomes a battlefield, a handful of young civilians struggle to escape the conflict. To save his friends and family, the reluctant warrior Seabook Arno becomes the pilot of a new Gundam which bears the code name F91.
