The WORST Episodes of Generator Rex
Every episode ever - ranked by fan votes!
Last Updated: Sep 18, 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 - Day That Everything Changed
Season 1 - Episode 1 - Aired Apr 23, 2010
Rex defeats and cures an E.V.O. rampaging through a city. Criticized by his superiors over his performance and frustrated by his lack of freedom, Rex breaks out of Providence with Bobo and goes on a road trip. In a city, he meets a group of young men. A young blond named Noah comes by and tells him that the boys are just using him. After telling the boys he doesn't want to give them anymore freebies, they call him a freak and leave. Noah stays and quickly befriends Rex. When Agent Six comes to retrieve him, the Pack, three E.V.O.s named Skalamander, Biowulf and Breach, appear and attempt to abduct Rex; during the melee he, Noah and Bobo are thrown through a portal into Abysus. There, they are met by Van Kleiss, who demonstrates his powers, introduces himself, and invites them to his stronghold, a ruined castle which was the location of the original nanite-release Event. Van Kleiss tries to win Rex's trust by hinting that he has knowledge of Rex's past, but after separating him from his friends he turns on him and attempts to drain him of nanites. Noah and Bobo manage to get away from the Pack long enough to distract Van Kleiss, which allows Rex to break away, and the three escape by air with Van Kleiss in pursuit, Agent Six comes to the rescue with a Providence task force, but in a final confrontation it is left up to Rex to defeat Van Kleiss, though his body regenerates itself afterward. And Rex gets a new room that he enjoys.
#2 - String Theory
Season 1 - Episode 2 - Aired Apr 30, 2010
Rex is sent on a mission to lower Manhattan, where an E.V.O.-infected human named Peter Meechum which infects everything it touches is turning humans into zombies. Rex wants to attempt a cure, but White Knight is determined to prevent the infection from spreading, and is willing to resort to destroying the city with a nuclear bomb. Complicating the matter further, Peter is being blackmailed by Van Kleiss (who has Biowulf kidnap his daughter) and refuses the cure. Rex and Agent Six must cooperate to save the girl from the Pack and the city from the bomb, all behind White Knight's back.
#3 - Beyond The Sea
Season 1 - Episode 3 - Aired May 7, 2010
In the hope of finally getting to do something normal, Rex stages another breakout, giving Noah and Bobo a lift to the tourist destination of Cabo Luna for spring break. During a volleyball game, he meets and falls for a girl called Circe, who initially wants nothing to do with him. Another chance encounter later leads Rex to discover that she is an E.V.O. with ultrasonic sound powers who is trying to earn the right to join the Pack by defeating an E.V.O. sea monster. While Agent Six, Bobo, and Noah attempt to hold Biowulf and Breach at bay, Rex helps Circe defeat the sea monster E.V.O., and afterward appeals to her to join him at Providence, but she tells him the Pack is the only place she would feel accepted. Even though Rex helped Circe defeat the Sea Monster E.V.O., Van Kleiss lets her join anyway.
#4 - The Architect
Season 1 - Episode 5 - Aired May 21, 2010
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.
#5 - The Forgotten
Season 1 - Episode 10 - Aired Sep 17, 2010
A team of Providence soldiers led by Captain Calan, carrying an important data rod, are shot down over the "Bug Jar" (formerly Kiev, Ukraine, which has been sealed off from the rest of the world via a one-way force field bubble). Rex, Six, and Bobo are called in to retrieve the rod and any survivors of the crew. Doctor Holiday gives Rex a secret task of collecting samples, on the condition of a dinner date with Rex. Rex is able to secure the data rod after entering the zone, but things go awry when E.V.O.s attack the trio, and they are stranded inside the Bug Jar. The E.V.O.s are being led by a faceless, four-armed E.V.O. called NoFace. Rex and the others escape from NoFace, and meet up with two of Calan's team, who are none too pleased with Rex's carefree nature about the data-rod's retrieval. They lead Rex and Six to a site where NoFace is forcing Calan and another member of his team to repair the downed ship, using a form of telepathy to communicate with the other E.V.O.s. After a struggle, Rex and the others make contact with Holiday, who tells them to head for a hotel for extraction. As the group wait for help to arrive, NoFace leads another charge against Rex and the team, hoping to use the extraction as a way of escaping the Bug Jar. However, Rex manages to use Holiday's sample collector to disable NoFace and escape with the rescue team, leaving the faceless creature and his brood still trapped. Back at Providence headquarters, Rex pretends to have lost the data rod to tick off White Knight, earning recognition from the crew he saved when he allows them to take the credit for it's retrieval. Holiday is happy to see Rex and the others safe, even if he didn't manage to collect samples for her. She mentions it meant everything to her, except a date.
#6 - Lockdown
Season 1 - Episode 4 - Aired May 14, 2010
While investigating a mysterious bunker at Providence's Petting Zoo known as "The Hold," Rex and Noah stumble onto a formidable spider-like E.V.O. After White Knight locks down the Petting Zoo, Rex and Noah must make it to the exit alive. A panicky Noah lets slip that he works for White Knight, which rattles Rex so deeply that he loses the use of his powers. The two manage to make it to the exit, but while Noah apologizes for his deception the friendship seems over. However, after the spider snatches Noah from the threshold of safety, Rex's feelings of betrayal subside, and he proceeds to defeat the E.V.O. and rescue Noah. The E.V.O. is revealed to be Dr. Holiday's incurable sister. Rex threatens to deal with White Knight if he is spied upon again. Rex then resolves to leave Providence.
#7 - Operation: Wingman
Season 1 - Episode 11 - Aired Sep 24, 2010
Rex is stalked by a carnivorous rabbit E.V.O. that he insulted. Surprisingly, every time they meet, Rex is dealt a humiliating defeat made all the worse when Noah convinces Rex to be his wingman for Prom night. The girl Noah set Rex up with is named Annie who is almost supernaturally clumsy, having a bad habit of putting her dates in the hospital or worse. Noah set Rex up with Annie because he is the only one who could possibly survive the night with her. Shockingly, Annie's clumsiness proves to be an asset when Rex uses it to blow the rabbit E.V.O. up with a heat seeker missile. After the prom, the girls agree this is the best date they ever had but Rex states that despite Annie being nice and cute, he'll never go on a date with her again.
#8 - Leader Of The Pack
Season 1 - Episode 7 - Aired Jun 4, 2010
The agents of Providence mobilize to stop Van Kleiss when he arrives in New York City aboard a giant flying whale-like E.V.O., but are forced to stand down when it turns out that he is there to address the UN and therefore has diplomatic immunity. Rex observes Circe among Van Kleiss' followers. Later at Providence, while voicing his suspicions, Rex learns that he has been invited to a reception at the Abysus consulate, though White Knight intends to dispatch Agent Six and Dr. Holiday instead, not wanting Rex to cause any commotion. Rex locks Six into a room, steals one of his suits, and meets Holiday at Van Kleiss' party. Six gets out of the room and he and Bobo go to the party. Rex again spots Circe, but when he tries to get her to tell her what Van Kleiss is doing, she knocks him out. After the party ends, Rex awakens in a prison cell with Bobo, who had been captured while trying to find him. They escape; Rex goes after Van Kleiss, following Bobo to an underground tunnel, where Breach and Circe are using large, worm-like E.V.O.s to transport nanite-infused soil from Abysus into the tunnels (through one of Breach's portals), enabling the full use of Van Kleiss' powers over his surroundings. Breach orders an E.V.O. to attack, but Circe countermands her and tries to convince Rex to join the Pack willingly instead. He declines, and a disappointed Circe retreats with Breach into Abysus. Meanwhile, Van Kleiss addresses the UN General Assembly, immediately showing his cards: he takes the envoys hostage inside the chamber and proceeds to demand that the world submit to him. Rex arrives from the tunnels and tries to fight him, but Van Kleiss' powers prove too strong. However, an offhand comment Van Kleiss makes leads Rex to return to the tunnels below and bust a large hole in one of the walls, causing the East River to flood the passages and flush out the Abysus soil. An angry Van Kleiss attempts to strangle Rex with vines, but as the Abysus dirt dissolves in the water, hi
#9 - Dark Passage
Season 1 - Episode 9 - Aired Jun 18, 2010
After packages boobytrapped with a substance that activates nanites are sent to dozens of powerful people around the world, briefly turning them into rampaging E.V.O.s, White Knight dispatches a team made up of Rex, Agent Six, Bobo Haha, and Dr. Holiday to the Amazon to secure an abandoned base to which the packages have been traced. The base is where a missing scientist named Gabriel Rylander is thought to be hiding; the team is to apprehend him and secure his research, keeping it from falling to the Pack, which is also en route. The voyage is eventful and dangerous, with the team traveling at first by riverboat and encountering a swarm of piranha-like E.V.O., and later overland, contending with Rylander's automated defenses and sentry robots. Meanwhile, the Pack (now including a Jungle Cat E.V.O. member following Breach's presumed death) is led through the forest by Van Kleiss, wearing a special soil-circulating suit to maintain his powers. After the Jungle Cat E.V.O. accidentally ruptures the suit during a skirmish with Rylander's sentry robots, Van Kleiss drains his nanites, petrifying him. The two expeditions locate the base at the same time, and a battle ensues. After Providence air support arrives, White Knight orders them to abandon retrieval and simply bomb the building to deny it to Van Kleiss. With the rest of the team fighting the Pack outside, Rex enters the base and finds Rylander, who surprisingly recognizes Rex. The somewhat unstable, rambling Rylander gives Rex a fragmentary account of his past before injecting him with a syringe containing a single large, abnormal-looking nanite. Van Kleiss unexpectedly arrives and injures Rylander before he is able to answer any more of Rex's urgent questions. Van Kleiss and Rex fight, but when Rex cuts off Van Kleiss's mechanical left hand he uses his powers to gain the upper hand. Before he could finish Rex off, the injured Rylander lunges at Van Kleiss. The two are thrown into the aperture of a reactor vessel,
#10 - Frostbite
Season 1 - Episode 6 - Aired May 28, 2010
Absorbing the nanites from cured Evos takes its toll on Rex, and he is taken to a remote Providence base in the Arctic codenamed "Paradise" to have the excess nanites extracted and stored. The base commander Weaver is upset about the unscheduled visit, and his personnel are uncooperative. Dr. Holiday has to threaten them to have Rex treated. Rex is sedated for the procedure; after having an odd dream, he wakes up to find the base personnel unconscious (possibly dead), Six, Holiday, and Bobo missing, and the Pack members Biowulf and Skalamander arriving at the base outside. After burying them in an avalanche, Rex goes back inside to find Weaver, who attempts to render him unconscious. Rex learns that Weaver has been reactivating the extracted nanites and selling them to Van Kleiss. When Rex unexpectedly showed up earlier, Weaver had panicked. Rex finds Six, Holiday, and Bobo locked up in a storeroom, when Biowulf and Skalamander enters the base. Weaver escapes his grasp and demands safe passage, backed with the threat to open the tank containing the extracted nanites. While trying to make it look realistic, Weaver accidentally triggers the release and mutates into a gigantic tentacled E.V.O. with regenerative powers. Biowulf and Skalamander flee, while Rex and Six fight Weaver. Holiday and Bobo try to launch their air transport before it falls into a trench in the ice opening under the collapsing base. Rex tries to cure Weaver, but passes out from absorbing too many nanites, though not until after he experiences more jumbled memories and taps into nanite communications frequencies. Weaver is taken down by Agent Six and the air transport that Dr. Holiday and Bobo are on. He wakes up in "Purgatory," a Providence base in a desert, a backup for the Arctic base, with no memory of hearing the nanites. As Bobo and Rex wander out onto the sand, Dr. Holiday tells Six about a odd nanite code (it is shown as a binary code on the computer screen) that had appeared after she extr
#11 - Breach
Season 1 - Episode 8 - Aired Jun 11, 2010
Rex wakes up in a creepy boarding school, full of mannequins and stuffed animals, but no people. He is able to use his ear-link communicator to talk to Dr. Holiday, who informs him that he had been fighting an E.V.O. when Breach appeared out of nowhere and teleported Rex away. Providence has Breach in custody, but while Six and Bobo are detected in a desert somewhere, Rex cannot be located. Rex is about to leave the school when he hears a roar; he rescues a small girl from a spider-like E.V.O. which he then cures only to have Breach teleport it away. Rex finds the girl "creepy" and suspects something is wrong with her, but puts on a brave face for her. Meanwhile, Dr. Holiday is unable to get Breach to cooperate; she tries firing probes at Breach, who instinctively opens portals to random spots around the world to protect herself. Rex wanders through a deserted town; he finds a missing cat poster identifying the town as Greenville, Ohio. He manifest his hoverbike and tries to drive away, but falls off a cliff at the edge of the city, discovering it to be floating in a gray void. Dr. Holiday informs him that Greenville vanished two years ago, with all its citizens appearing randomly around the world. She realizes that Breach must have taken it and sent it to a pocket dimension to use as her personal dollhouse, with Rex as her latest doll. Rex kicks over a row of mopeds; Breach gets rid of them through a portal. Rex realizes that this bothers Breach; he begins wrecking things, with Breach dumping them in random places worldwide. The little girl then reveals herself to be a shape-shifting, slug-like E.V.O. with a desperate codependent relationship with Breach. She fights Rex, but damages Breach's prize possessions in the process. Eventually, Breach starts having a nervous breakdown, as her "toys" had been the only thing keeping her stable. During her breakdown, she opens a portal to Providence. Even though the slug-girl E.V.O. tries to stop him, Rex escapes, while Breac
#12 - The Hunter
Season 1 - Episode 13 - Aired Oct 8, 2010
During a routine job in a small town neighborhood, a flea E.V.O. that Rex was in the middle of curing is destroyed by Hunter Cain, a Punisher-styled vigilante who uses an advanced weapon known as "Sweet Caroline" that causes targeted Nanites to self destruct. Hunter claims that Providence has been lying to the public for years and that the E.V.O. Crisis isn't caused by nanites in every form of life on the planet but in fact a disease that spreads from person to person. Six is able to prevent a fight from breaking out between Rex and Hunter and when they get back to Providence, Hunter's back story is explained. He went insane several months ago when his wife went E.V.O. and whom is the one he first euthanized. Six cites Hunter as a threat because of his rallying of the public against Providence. Meanwhile Rex has lost his will to fight E.V.O.s after a accident in which he was attacked by civilians and injured one by mistake. Meanwhile a large amount of phantom like E.V.O.s are on a rampage at the docks and are immune to conventional weapons. Hunter and his private army arrive on the scene with their specialized anti-nanite weapons and are able to fight off a large amount of the phantoms. Rex, having finally regained his belief in humanity, arrives to fight the phantom E.V.O.s and is attacked by Hunter. While the two are alone, Hunter reveals that he spent a fortune cloning a lone phantom E.V.O. to create the small army to prove Providence's ineffectiveness (not knowing a news team had captured his admitting the crime). After a rough battle, Rex ties up Hunter and leaves him for Providence and, with the help of Hunter's not so loyal army, Rex is able to kill off the phantom E.V.O.s. The episode ends with dozens of interviews about how Rex saved lives while at least partially repairing his reputation and strengthening his new-found belief in humanity, but knows that another person like Hunter will take his place.
#13 - Rabble
Season 1 - Episode 12 - Aired Oct 1, 2010
While in Hong Kong with Agent Six, cracking down on three E.V.O. criminals, Rex discovers that a member of the gang named Tuck knew Rex despite Rex not being able to remember him. White Knight concludes that there is someone behind the robberies and orders Agent Six to have Rex infiltrate the three criminals. Tuck leads Rex to Tuck's friends Sqwydd and Cricket. Rex can't remember being a member of their gang because of memory blackouts which Tuck mentioned he suffered from frequently. Rex also discovers that they're being forced to work for an E.V.O. crime lord named Quarry. When Rex finally confronts Quarry he discovers that it was he who gave Tuck and the others to Quarry, who reveals the information on a Diary kept on a PDA. This causes the others to turn on Rex. Rex, suffering from a guilt trip, goes to shut down Quarry's ring, causing the others to turn on Quarry after seeing Rex standing up for them and destroying the PDA when Quarry bribed him. Quarry and his E.V.O. servants are arrested by Providence. Rex tells White Knight that Quarry had been apprehended while Tuck, Sqwydd, and Cricket had gotten away. Rex tells Tuck, Sqwydd, and Cricket that Providence won't come after them long as they don't give good reason and departs on a good note. Back at Providence, Rex informs Holiday and Six of his blackouts. Agent Six gives Rex a journal and pen for Rex to record anything that he does remember to help cope with future black outs while Dr. Holiday theorizes that the blackouts are triggered by extreme trauma.
#14 - Badlands
Season 1 - Episode 20 - Aired Dec 3, 2010
A large Providence convoy commanded by Six is transporting a case of unstable nanites through a desert. Rex, Bobo, and Noah are assigned the humiliating task of transporting the force's toilet paper on a beaten-up truck; Rex is further annoyed at not being allowed to drive. After his attempt to resuscitate the truck's radio backfires and fills the cabin with smoke, the three stray down a side road. Meanwhile, the convoy is ambushed by a criminal gang of self-declared anarchists, led by the deranged cyborg Gatlocke. The gang successfully hijacks the nanite carrier, only to discover that it is a decoy, its actual cargo being toilet paper; the nanite case had been covertly loaded onto Rex's truck. After some misadventures including an unsuccessful snack stop and an attempt to flirt with girls in a convertible, Rex, Bobo, and Noah trace their way back to the convoy route, coming across the aftermath of the ambush and the waiting gang. Gatlocke demands the truck; a short brawl ensues between him and Rex before the three are able to escape with the truck and one of the gang's all-terrain vehicles. After a running Mad Max-style battle, the gang is defeated and Gatlocke falls into a canyon; his cybernetic parts damaged, he climbs out and demands the nanites again when Providence relief forces show up. Six explains that the nanites are now inert; what he had meant by "unstable" was that they were vulnerable to vibration. The turmoil of battle having resulted in their deactivation, they are now useless to either Providence or Gatlocke. An enraged Gatlocke takes a swing at Rex; he is knocked out cold and taken into custody. Rex, Noah, and Bobo get back in the truck, Rex finally being allowed to drive.
#16 - Payback
Season 1 - Episode 21 - Aired Dec 10, 2010
Rex and Noah are aboard the Keep and returning to Providence HQ when news breaks of surprise attacks against major Providence bases around the world. Having lost his nature-controlling powers at Rex's hands (he has apparently manage to turn himself back into a E.V.O. through a as of yet unidentified means), Van Kleiss is out for revenge; he personally leads the Abysus forces which board the Keep. Rex counter attacks, but is restrained by Biowulf long enough for Van Kleiss to drain Rex of all his active nanites. This alters his powers into the mirror image of Rex's: as Rex is able to cure E.V.O's, Van Kleiss is now able to create them, which he demonstrates on Captain Calan. The depowered Rex is thrown from the Keep by Biowulf, but is rescued in midair by Six's jumpjet. Van Kleiss is determined to destroy Providence once and for all; the Keep is rammed into the HQ tower, and a heavy battle develops. Rex, Noah and Bobo escape in a jumpjet to Purgatory Base, where Rex risks his life by immersing himself in active nanites in order to reactivate his powers. The procedure seemingly activates the large, unusual nanite that Dr. Rylander had injected into him in Dark Passage. Providence HQ is about to fall; Van Kleiss makes it into the situation room, defeats Six, and dispatches Biowulf and Skalamander after White Knight and Dr. Holiday. Rex reappears and attacks Van Kleiss, manifesting a new, whip-like build granted by Rylander's nanite; he is able to use its abilities to disable Van Kleiss. Meanwhile Holiday takes down Skalamander by releasing her E.V.O. sister, and White Knight lures Biowulf into a trap. Van Kleiss is snatched to safety by an E.V.O., while Breach sets bombs throughout Providence as a diversion. Rex finds he is able to shut down the entire HQ with his new powers. Providence takes Biowulf, Skalamander, and many other E.V.O.s left behind into custody; Rex, back to his old self, cures Captain Calan. Rex is warmly commended by White Knight and confidently obse
#17 - Robo Bobo
Season 2 - Episode 5 - Aired Mar 11, 2011
Rex discovers that Bobo has replaced himself with a robot duplicate.
#18 - Moonlighting
Season 2 - Episode 10 - Aired Apr 15, 2011
Rombauer and Lansky, two Providence training washouts, form their own amateur E.V.O. hunting business. Rex, dissatisfied with his work at Providence, decides to do some moonlighting with them.
#19 - 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.
#20 - Rampage
Season 2 - Episode 1 - Aired Feb 4, 2011
Van Kleiss turns Noah into an EVO! Can Rex cure his best friend in time?
#21 - 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.
#22 - 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.
#23 - 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.
#24 - Gravity
Season 1 - Episode 14 - Aired Oct 15, 2010
Dr. Holiday and small group of Providence scientists are on board a satelite station working on a modified form of nanites that deactivate regular nanites. The test run is a success until ZAG-RS, the rogue AI system from the village of engineers from The Architect, hacks into the satelite to steal the deactivated nanite research. Holiday manages to shut down the satellites' systems thus preventing the download and trapping ZAG-RS but causes the satelite to enter orbital decay. Rex arrives to help using the Space Elevator but the damage done to the elevator destroys it. With the assistance of a drone named Salvator, Rex is able to stabilize the station with an escape pod with Rex, the surviving crew and nanites on board. However, it is eventually revealed that ZAG-RS downloaded herself into Salvator to avoid the effect of the shut down and now intends to leave everyone else on the satellite while she escapes to earth in Salvator with the nanites and the research. However, Rex and Dr. Holiday are able to defeat ZAG-RS by both destabilizing the station and sacrificing the nanites. The episode ends with a crew member, Dr. Holiday, and Rex in an escape pod in the middle of the ocean awaiting pickup.