Gravity

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 re-stabilizes 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 stays with the Pack, while Rex leaves, unable to understand girls (something that he and Six share in common).

Rex, Agent Six, Noah, Dr. Holiday, Bobo Haha, White Knight, Van Kleiss, Biowulf, Breach, Skalamander, Providence Cadet Kenwyn Jones

Rex is 15, and like most 15-year-old boys, he likes cars, girls, music and sports. But unlike most 15-year-old boys, he can make his fists the size of boulders, sprout a jet pack out of his back and turn his legs into a lightning-fast motorcycle. These talents are extremely useful to Providence, a global organization chartered to fight mutant creatures known as E.V.O.s (Exponentially Variegated Organism). Rex is under their care and is their ultimate weapon.

Generator Rex takes place in the aftermath of a global accident, where microscopic machines known as nanites have merged with every living thing. For a select few, the nanites mutate their hosts into monstrous creatures called E.V.O.s.

Rex is one such E.V.O., but unlike the monsters he and Providence battle, Rex has control over his nanites. He alone has the ability to not only control these nanites- allowing him to create amazing mechanical limbs and gadgets that aid him in battle ' but also heal E.V.O.s of their mutation.

Rex's powers are incredible, and his importance to Providence and the world is undisputed. But on top of that, he just wants to be a normal teenager and must balance his adrenaline-fueled adventures with the everyday ups and downs of being 15. Rex is joined by a team of characters including his sidekick, a highly intelligent monkey named Bobo Haha who encourages Rex's mischievous side; his mentor Agent Six, so called for being the world's sixth deadliest man; the brilliant Dr. Holiday, who seems to be the only one that really understands Rex; and Noah, a regular kid and Rex's friend.

Rex's greatest threat is an E.V.O. named Van Kleiss, who with his minions called The Pack sees the nanites and resulting E.V.O.s as part of a greater plan and the future of humanity.