What Lies Beneath

While making a midnight taco run with Bobo, Rex gets a call from Circe stating that there is a problem in Abysus. Agent Six and Dr. Holiday come along with Rex when an anomaly is detected there. Meanwhile, Bobo conducts missions that distract White Knight, including dinner, a movie, and some time at the beach. Dr. Holiday discovers that the floating goop is actually nanites that have become unstable and are multiplying. When a giant one-armed E.V.O. attacks, Circe, Biowulf, and Skalamander also appear and Six thinks its a trap, but they end up fighting the one-armed E.V.O., which dissolves. Biowulf cuts off Circe before she can reveal what had happened. At the Van Kleiss' castle, Biowulf explains info revolving around what would happen if anything happened to Van Kleiss. They pull a scroll out of a machine that states that Rex is the key to fix Abysus. Rex agrees to run the machine to help stop the spreading of the unstable nanites. This in turn happens to be a plot to revive Van Kleiss and that his force is the only thing that can keep Abysus together. When Rex discovers this, he stops the machine mid-cycle, causing the half-formed Van Kleiss to dissolve, and damages the machine. Rex refuses to activate the machine, so he tries to cure the nanites, but is overloaded with nanites.
Dr. Holiday suggests to Rex to talk to the nanites, and in the process, the nanites responded. However, instead of receding, the nanites contract, causing the castle to fall apart, putting Six, Holiday, Circe, Biowulf, and Skalamander in danger. Left with no option, Rex repairs the machine, activates it, and, while noticing something different, revives Van Kleiss. Once revived, Van Kleiss, recedes the nanites into himself, growing larger in the process, saves Biowulf and Skalamander, but refuses to save Rex's loved ones (including Circe), unless Rex joins Van Kleiss. Left with no choice, Rex agrees, and Van Kleiss restabilizes Abysus, saving Six, Holiday and Circe. With a celebratory handshake, Rex discovers that Van Kleiss' nanites were changed by the reviving process, and cures him, making him human. Van Kleiss brags that his greatest strength was not his nanites, but his intellect, and out of nowhere, Breach returns, pulling Van Kleiss to safety through a portal, and the Pack escapes as well. Circe still stays with the Pack, while Rex leaves, unable to understand girls (something that he and Six share in common).