The BEST Episodes of Generator Rex

Every episode ever - ranked by fan votes!

Last Updated: Dec 30, 2019

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.

Target: Consortium

#1 - 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.

star 9.80
5 votes
Directors: Chris Graham
Writers: Alexx Van Dyne
A Brief History of Time

#2 - 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.

star 9.75
4 votes
Directors: Chris Graham
Writers: Paul Giacoppo
Remote Control

#3 - Remote Control

Season 3 - Episode 12 - Aired Feb 3, 2012

Quarry uses Providence collars to control EVOs.

star 9.50
4 votes
Endgame (1)

#4 - 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.

star 9.50
8 votes
Directors: John Fang
Writers: Rob Hoegee
Rock My World

#5 - 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.

star 9.50
4 votes
Directors: Kenji Ono
Writers: Alexx Van Dyne
Heroes United (1)

#6 - 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).

star 9.23
39 votes
Writers: Man of Action
Endgame (2)

#7 - 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?

star 9.22
9 votes
Directors: Chris Graham
Writers: Rob Hoegee
Six Minus Six

#8 - 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.

star 9.17
6 votes
Directors: Chris Graham
Writers: Alexx Van Dyne
Hermanos

#9 - 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.

star 9.17
6 votes
Basic

#10 - Basic

Season 1 - Episode 17 - Aired Nov 5, 2010

Rex decides to attend "Providence Boot Camp" in an attempt to beat Noah. Once the boys arrive at the camp, they must dissect E.V.O.s, do sit-ups until they puke (literally), and even brush their teeth a specific way. When Rex and Noah fail a crash landing test and are ordered to do it over and over again until they do it correctly, they realize this may not be as easy as they thought. Things take a turn for the worse when a cadet, Kenwyn, who is angry at Rex for dropping her rank from #1, turns off the power restraint collar placed on E.V.O.s agents in training must battle. As a twist, the General sends her down instead of Rex since Rex fought it eariler in the episode. All the E.V.O.s, including Weaver, break loose and wreak havoc until Kenwyn works with Noah and a very helpful extra to distract the E.V.O.s so Rex can beat them. These four graduate from Basic Training and Noah and Rex are seen walking down the Stone Steps, betting money on who will make it to the bottom first.

star 9.09
11 votes
Directors: Rick Morales
Writers:
Robo Bobo

#11 - Robo Bobo

Season 2 - Episode 5 - Aired Mar 11, 2011

Rex discovers that Bobo has replaced himself with a robot duplicate.

star 9.00
8 votes
Directors: Seung-Hyun Oh
Writers: Rob Hoegee
Guy vs. Guy

#12 - Guy vs. Guy

Season 3 - Episode 8 - Aired Jan 6, 2012

Rex plans a prank on Noah and ropes Bobo into his scheming.

star 9.00
4 votes
Directors: Seung-Hyun Oh
Writers: Jake Black
Mind Games

#13 - Mind Games

Season 3 - Episode 14 - Aired Feb 17, 2012

Circe behaves strangely after joining Rex and the gang at the Plant.

star 9.00
4 votes
Enemies Mine

#14 - Enemies Mine

Season 3 - Episode 17 - Aired Mar 2, 2012

Hunter Cain, Gatlocke, No Face, and Valve team up to take down Rex.

star 9.00
4 votes
Directors: Kenji Ono
Writers: Eugene Son
Waste Land

#15 - Waste Land

Season 2 - Episode 2 - Aired Feb 11, 2011

On a mission to recover a set of nuclear reactor cores from a research ship, Rex and Six encounter an advanced civilization of marine E.V.O.s.

star 8.78
9 votes
Directors: Chris Graham
Writers: Rob Hoegee
Grounded

#16 - Grounded

Season 2 - Episode 17 - Aired Oct 14, 2011

While the rest of Providence is off-site for training exercises, Rex is grounded. Noah convinces him to have a party, but can only deliver four hoodlums for guests. When an EVO intruder is found inside the base, it's up to the six of them to stop it.

star 8.75
4 votes
Directors: Seung-Hyun Oh
Writers: James Felder
Lost Weekend

#17 - Lost Weekend

Season 2 - Episode 3 - Aired Feb 18, 2011

Providence Agent Kenwyn Jones and Rex are assigned an undercover mission to investigate an underground E.V.O. party. However, their unique way of getting things done soon causes problems and they must learn to work together.

star 8.71
7 votes
Directors: Seung-Hyun Oh
Writers: Rob Hoegee
Divide by Six

#18 - 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.

star 8.64
11 votes
Directors: Rick Morales
Writers: Rob Hoegee
The Swarm

#19 - The Swarm

Season 1 - Episode 16 - Aired Oct 29, 2010

Rex faces off against a group of mutant locusts that feed on metal, leaving a path of destruction behind them. However, defeating them is not an easy task as. When they are attacked, the locusts keep dividing through binary fission. As the locusts rage toward China (which holds the Earth's largest metal concentration, Beijing), Providence pulls out all stops to halt their advance. Dr. Holiday comes to odds with White Knight, Six, and Rex as she strongly protests against their "attack first, ask questions later" policy. Finally, the team is forced to consult her for help when the increasing numbers of locusts destroy the Great Wall of China where Providence had made its stand. Eventually, Dr. Holiday synthesizes a concentrated version of a pheromone tag used by the locusts to mark prey, which she sent Rex to gather. While trying to gather the pheromone, Rex almost ends up dead. However, the nanite that Dr. Rylander injected into Rex saved his life, and the only sample left was in his underpants (which had red motorcycles on it). After everyone had a good laugh (Dr. Holiday gave Rex his underwear in front of everyone), Providence sprays it on the locusts, causing them to go berserk and attack (and devour) each other. Finally, Bobo, as revenge for Rex destroying more locusts than him, makes it public that "Providence's Secret Weapon, Underwear, Saves the Day". Rex leaves the Providence briefing room in anger as the story runs on TV, while the other Providence agents continue to laugh at his expense.

star 8.60
5 votes
Directors: Sam Montes
Writers:
Riddle of the Sphinx

#20 - Riddle of the Sphinx

Season 3 - Episode 6 - Aired Dec 16, 2011

The gang go to Egypt, where strange EVO activity surfaces.

star 8.60
5 votes
Directors: Seung-Hyun Oh
Writers: James Felder
Back in Black

#21 - Back in Black

Season 3 - Episode 1 - Aired Nov 10, 2011

Six months into the future, Rex learns that Black Knight became the head of Providence after White Knight went against the orders of his superiors the Directorate. During this time-skip, Providence has adopted a new method of dealing with captured E.V.O.S. Instead of researching the incurable creatures, they now use a machine to brainwash them into servitude.

star 8.43
7 votes
Writers: Paul Giacoppo
Written in Sand

#22 - 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.

star 8.43
7 votes
Directors: Chris Graham
Writers: Rob Hoegee
Night Falls

#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.

star 8.43
7 votes
Directors: Rick Morales
Writers: Amy Wolfram
Lions and Lambs

#24 - 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.

star 8.43
7 votes
Directors: Seung-Hyun Oh
Writers: Rob Hoegee
Rampage

#25 - Rampage

Season 2 - Episode 1 - Aired Feb 4, 2011

Van Kleiss turns Noah into an EVO! Can Rex cure his best friend in time?

star 8.40
10 votes
Directors: Rick Morales
Writers: Rob Hoegee