The BEST Episodes of Generator Rex
Every episode ever - ranked by fan votes!
Last Updated: Jan 13, 2021
Network: Cartoon Network
Five years prior to the start of the series, a massive explosion released nanites into the atmosphere, infecting every living thing on Earth. These nanites randomly activate inside their hosts, mutating the subject into a monster known as an E.V.O. (Exponentially Variegated Organism). These Evos are usually mindless creatures that are a danger to everything around them. To combat the Evo threat, the organization known as Providence was created to capture and cure them. Rex is a 15-year-old amnesiac teenager who, like everyone else, has been infected with nanites. However, unlike most Evos, Rex can control his nanites, allowing him to manifest a variety of powers and even cure other Evos of their mutations. Working with Providence under Agent Six, he helps stop the Evos as they appear. Working against Providence is Van Kleiss, an Evo with connections that are not only to the event which released the nanites, but to Rex as well.
#1 - Heroes United (2)
Season 3 - Episode 4 - Aired Nov 25, 2011
A one hour crossover episode between Ben 10: Ultimate Alien and Generator Rex in which Ben Tennyson accidentally travels to Rex Salazar's dimension. After quarrels with each other, the two finally work together to stop a threat once created by Rex's brother, Caesar, the Alpha Nanite (Michael Emerson).
10.00 
#2 - Endgame (2)
Season 3 - Episode 20 - Aired Mar 15, 2012
Rex must risk losing his memory and resort to his last line of defense to defeat the Consortium. But will it be enough?
9.95 
#3 - Endgame (1)
Season 3 - Episode 19 - Aired Mar 8, 2012
Black Knight attacks the Providence Defect Team and takes a Master Control Nanite out of Rex, allowing her to use Rex's powers.
9.95 
#4 - Target: Consortium
Season 3 - Episode 16 - Aired Feb 24, 2012
The Jungle Cat E.V.O. returns and helps Rex and Agent Six attempt to find and take out Black Knight's bosses in the Consortium.
9.95 
#5 - Remote Control
Season 3 - Episode 12 - Aired Feb 3, 2012
Quarry uses Providence collars to control EVOs.
9.94 
#6 - Hermanos
Season 3 - Episode 15 - Aired Feb 17, 2012
Rex inherits a farm in South America and invites his friends to explore it with him.
9.94 
#7 - Assault on Abysus
Season 3 - Episode 11 - Aired Jan 27, 2012
Rex races to Abysus in hopes of beating the Black Knight and Providence there.
9.92 
#8 - A Brief History of Time
Season 3 - Episode 13 - Aired Feb 10, 2012
Van Kleiss' travels through time are recounted as he returns to the present with something on his tail.
9.92 
#9 - Lions and Lambs
Season 2 - Episode 19 - Aired Nov 4, 2011
Van Kleiss has found a way to enhance Breach's powers so she can now open portals in time. To stop this dangerous threat, Rex must attempt to lure her over to the good side.
9.91 
#10 - Riddle of the Sphinx
Season 3 - Episode 6 - Aired Dec 16, 2011
The gang go to Egypt, where strange EVO activity surfaces.
9.90 
#11 - Enemies Mine
Season 3 - Episode 17 - Aired Mar 2, 2012
Hunter Cain, Gatlocke, No Face, and Valve team up to take down Rex.
9.90 
#12 - Exposed
Season 2 - Episode 16 - Aired Oct 7, 2011
A news crew is given an all-access pass to Providence, and Rex goes a little too far in an effort to get more camera time.
9.89 
#13 - Phantom of the Soap Opera
Season 3 - Episode 5 - Aired Dec 9, 2011
Noah lands a job at the TV studio where Rex's favorite show is filmed.
9.89 
#14 - Haunted
Season 2 - Episode 9 - Aired Apr 8, 2011
A ghostly cat-like E.V.O. interrupts Rex and Noah's double-date with Claire and Annie at a haunted hotel.
9.89 
#15 - Guy vs. Guy
Season 3 - Episode 8 - Aired Jan 6, 2012
Rex plans a prank on Noah and ropes Bobo into his scheming.
9.88 
#16 - A Family Holiday
Season 2 - Episode 15 - Aired Sep 30, 2011
Doctor Holiday goes to disastrous lengths to get her younger sister, Beverly, cured by a mysterious man named Dr. Brandon Moses, who says that he has found a cure for incurable E.V.O.s. However, there may be more to his "cure" than meets the eye.
9.88 
#17 - Black and White
Season 3 - Episode 9 - Aired Jan 13, 2012
After hearing rumors about what Black Knight is really up to within Providence HQ; Rex, Six, Holiday and White Knight break in to try and confirm the rumor. If true, the Planet could once again come under threat. Caesar reveals a secret about the original outbreak.
9.88 
#18 - Mind Games
Season 3 - Episode 14 - Aired Feb 17, 2012
Circe behaves strangely after joining Rex and the gang at the Plant.
9.87 
#19 - Written in Sand
Season 2 - Episode 12 - Aired Apr 29, 2011
While investigating a nanite-free sandstorm, both Rex and Van Kleiss become trapped underground, with their nanites slowly being destroyed. The two enemies must work together in order to survive.
9.87 
#20 - Six Minus Six
Season 2 - Episode 18 - Aired Oct 21, 2011
An effort to restore Rex's memories results in Six losing most of his. Now having reverted to his earlier, less-refined self, Rex has to help Six find his way back from heartless mercenary to the mentor he has come to know.
9.87 
#21 - Alliance
Season 2 - Episode 4 - Aired Mar 4, 2011
Rex and Bobo are sent to fix a failing shield around the Bug Jar. Unfortunately, Van Kleiss and the Pack, along with Circe, arrive in order to forge an alliance with the inhabitants of the Bug Jar and their vengeful leader, NoFace.
9.85 
#22 - Heroes United (1)
Season 3 - Episode 3 - Aired Nov 25, 2011
A one hour crossover episode between Ben 10: Ultimate Alien and Generator Rex in which Ben Tennyson accidentally travels to Rex Salazar's dimension. After quarrels with each other, the two finally work together to stop a threat once created by Rex's brother, Caesar, the Alpha Nanite (Michael Emerson).
9.85 
#23 - Night Falls
Season 2 - Episode 13 - Aired Sep 16, 2011
Caesar takes Rex to visit a family friend back in Mexico where they are met with cold suspicion and a dark secret.
9.85 
#24 - Rock My World
Season 3 - Episode 18 - Aired Mar 22, 2012
Rex becomes a security guard of a music band called the Trendbenders. He has to protect them from an obsessed fan who was angry at the change in the band.
9.84 
#25 - Divide by Six
Season 2 - Episode 6 - Aired Mar 18, 2011
Six asks for Rex's help to cure his old mentor, who's become an E.V.O.
9.82