Commander Matt Reddy and his crew are afraid it may finally be the end of the USS . Ever since their ship was transported to another world, and they became embroiled in a deadly conflict between the Lemurians and the vicious Grik, the has been taking a pounding. With out of commission for repairs, Reddy takes command of a different ship and joins a desperate battle to block the Grik swarm. Meanwhile, the humans and their allies face a deadly second front in the Republic to the south. All of Reddy's forces are committed, and there's no turning back. Either they'll win—or lose—everything...