It's nearing the end of World War III. Federation defeat seems inevitable since the Commander ship was ambushed. But we still have a chance, a small chance ... The Commander ship is not just a simple flying saucer, and we maintain nothing but the newest mobile plant for the production of military equipment. And you are the captain of this ship. Our pilots are the best in the whole federation, and they take us out of the encirclement in the safest way. Your task is to monitor the situation and help our gunners' additional fire support. You are the last hope in chief. Save the federation from defeat!