After being shot down in the middle of a war zone, five Thunderan warriors are fighting for their lives. Together they face a horde of heavily armored soldiers, and the team's only hope is to somehow break through their lines to reach the wreckage of their ship. Such overwhelming odds will strain their abilities to the absolute limit. But even if Pumyra, Lynx-0, Shen, Ligon, and their hammer-wielding commander Bengali make it out alive, will they still be able to complete their mission? And even more important: who is the mysterious antagonist who is hunting them and what is his connection to the Book of Omens?