JOURNEY TO INNER SPACE! With time running out before her world is overwhelmed by skull-faced fiends from beyond the Moon, Sonja and her crew sail north across the Villayet Sea in an all-out effort to strike at the main force of alien invaders while they slumber in their subterranean stronghold. But before they can even descend into those horror-filled catacombs, the She-Devil and her companions must first survive a night of terror on Devil's Island - not to mention fighting their way through the dread Martian pirates known as the Red Brotherhood!