On Christmas break from his new school on board the Universe Protection Agency star ship Hero, Kevin Dearman discovers that something big has been stalking his family. So when his little sister Mikayla disappears, Kevin is determined to find her, and he's not the only one. Jenna Dearman and her new friend Bianca comb Rexette, where the commoners and royals fight a costly civil war, to find Mikayla. Will the rescuers find Mikayla in time? Will they even survive the search?