Providece is being rebuilt. Van Kleiss turns Noah into an Evo sending Noah on a rampage throughout the city. Rex chases after his friend while Van Kleiss is free to pursue his real objective.
Knight sends Rex and Jones undercover to a party where the performer are all Evos to determine if there's any threat. Rex's friend, Skwydd, tells him some of the performers are getting threats.
Bobo is behaving responsibly. This alarms Rex. While others are more accepting of Bobo's change, Rex is determined to find out what happened to his friend. An Evo Bunny is captured, and will soon give birth.
Six, and some of his old associates, take Rex to a secluded island. Six hopes Rex can cure his mentor, while his former comrades have a different solution in mind.
In the middle of a battle, Rex suddenly produces new builds. As he's being examined, a mysterious stranger arrives who claims to be Rex's brother - Caesar. He claims to have sent the schematics for the builds.
Rex is attacked by Breach. She later tells Rex that Van Kleiss has a very important mission for her involving an old friend of Rex's. Rex eventually discovers that Breach is after his old boss: Quarry.
A researcher claims to have a cure for incurable Evos. Holiday leaves Providence in an effort to save her sister, but Six is suspicious of this miracle cure.