With his children away on the moon, there is no time to relax for Dr. Cavor. Once again, Victoria is under attack. The aging but brilliant scientist begins research on a new means of defense. After much work, he finds success with Mechanized Assault Unity 19 -- M.A.U.S. There's no time to spare as MAUS must defeat a mysterious robotic horde that lurks on the outskirts of town. With a blaster gun on her arm and the ability to upgrade on the fly, MAUS will travel to outer space, ancient ruins, and an old forest to defeat her enemies.