The Architect

Having fled Providence, Rex is traveling through a desert when he comes across a construction crew under attack by rat-like E.V.O.s. After Rex intervenes to save them, the foreman Jacob invites him to a nearby optically-cloaked village of engineers, who are working to create communication between the nanites and humans, in an attempt to achieve harmony and peace, all under the direction of a mysterious man they call "the Architect." The idyllic atmosphere and the sense of belonging he experiences during dinner with Jacob's family convince Rex to stay. He offers to help the engineers with the huge antenna at the center of the village, but becomes suspicious when he discovers that no one is allowed inside the antenna except the Architect himself. Rex barges into the tower to discover that the Architect is an android, a creation of the rogue AI ZAG-RS, the computer that is supposed to be the base behind the communicator. The AI explains that the nanites constrain its potential, and that the transmitter's actual purpose is to transmit a self-destruct command to all nanites on Earth, which would wipe out all life on the planet. Rex leads the engineers in a struggle against multiple copies of the Architect to disable the charging antenna, succeeding just in time. Agent Six, who has been looking for Rex, arrives; ZAG-RS uploads itself elsewhere, and Jacob and the other engineers decide to stay in their village and continue working for humanity in spite of the Architect's betrayal. Rex decides to return to Providence, as he believes in its objective despite his dislike of White Knight, but only on the condition that Rex, Bobo, Six, and Holiday have dinner together like a family every Friday night.

Habiendo huido de Providencia, Rex se viaja por el desierto cuando se encuentra con un equipo de construcción bajo el ataque de unas ratas EVO.