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.

Rex and Six attempt to retrieve nuclear material from a research sub. They encounter an underwater colony of Evos.

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.

With the dome about to fail, Rex and Bobo go to Kiev to repair the shield. Van Kleiss arrives to form an alliance with Noface.

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 and Bobo head to Mexico where a local group is freeing Evos caught by Providence. Rex is poisoned and must recapture an Evo to find the cure.

A ghostly cat-like E.V.O. interrupts Rex and Noah's double-date with Claire and Annie at a haunted hotel.

Rex attends Noah's High School to compete in a Table Tennis competition.

Trapped in cave, Rex and Van Kleiss form an uneasy alliance to find the source of a storm that's destroying nanites.

Rex and Caesar visit their Abuela in Mexico. Hunter Cain is back.

Breach is targeting the girls of Rex's life: Cricket and Circe! Or is she?

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.

A news team is given a tour of Providence.

Rex is grounded at Providence. But that doesn't stop him from throwing a party. But an old enemy shows up.

While trying to recover Rex's memories, Six loses his memories, and reverts to his old personality, and his old life.

Van Kleiss attach's a device to Breach which makes her more dangerous. Rex attempts to get her to switch sides.