West Point 3000 A.D. and The Invading Asteroid

A surprise invasion by Martians is planned by use of The Invading Asteroid. In the year 3000 A.D., West Point and the Earth are about to be invaded by Martians. Can Garr Devlin, an Underworlder, and Nola Rakkam, daughter of the commandant of West Point, stop the invasion?