 In U.C. 0087 the Earth Federation completes secret development of 12 new Gundam prototype units and a new super-carrier, MSC Galaxy. After mankind was sent to the stars to ease overpopulation 87 years before, a new civil war is being fought by the united government of earth and her colonies. Elite units from all sides are raging a savage war, and the crew of the MSC Galaxy is caught between political loyalty to the Earth Federation, and moral loyalty to mankind.