The fate of the world is at stake as Eureka begins to turn into the next Scub Control Cluster. As an army of Coralians surround her, Renton understands that to save Eureka and everybody else, he might have to forsake his humanity.
Dewey is able to create a hole in the Scub Coral that Anemone can slip through. Will Dominic be able to stop her from carrying out her suicide mission?
Holland's quest to find Renton hits a snag when the Gekko runs into a military fleet preparing to take on the ship. Unable to wait, Eureka leaves to search for him on her own--but Renton might be closer than she thinks.
A death in the battle between the Swan and the Gekko has major psychological consequences for members of both crews. Meanwhile, Holland reveals to Renton that he has a past connection to the Beams.
A mysterious girl named Eureka arrives at the home of Renton Thurston looking for the Amita Drive, necessary for the proper functioning of her LFO the Nirvash, throwing his life into chaos.
Holland prepares the Gekko for Ray and Charles' breaking in; locking Renton, Eureka and the kids in the safety of the brig under the excuse of disobedience.
Renton's grandfather is put in charge of upgrades for the Nirvash. Improvements can't come soon enough, as an attack on the Coralians results in an all-out battle and the deployment of typeTheEND.