After learning a year ago that humans most hated enemy the Trandute had made massive technological gains the Terrestrial Coalition is now playing catch up and needs all the help they can find. When a mysterious race of beings, humanity until now only speculated exist, called "The Hidden," suddenly has their own concerns with the Trandute, things take an interesting turn. Now the crew of the United States must use all their courage and skill to make alliances with alien species that could just as easily wipe them out of the universe, as give them a helping hand.