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Dexter's Laboratory is an American animated television series created by Genndy Tartakovsky for Cartoon Network. Initially debuting on February 26, 1995, as a seven-minute World Premiere Toons pilot, it was expanded into a full series after gaining network approval. The first season, which consists of 13 episodes divided into three segments each, premiered on TNT on April 27, 1996, and TBS and Cartoon Network on April 28. A second season of 39 episodes followed in 1997. In this season, Allison Moore, the voice actor for Dee Dee, was replaced by Kathryn Cressida, save for a few episodes. "Last But Not Beast", the second-season finale, was originally supposed to conclude the series in 1998. However, Tartakovsky directed a television movie titled "Dexter's Laboratory: Ego Trip" which aired on Cartoon Network on December 10, 1999. He left the series after the movie, focusing on his other projects, Samurai Jack and Star Wars: Clone Wars.

Production on a third season began in 2001 with Chris Savino taking over as creative director and later producer. It premiered in worldwide on November 18, 2001, during Cartoon Network's "Dexter Goes Global" marathon. The third-season episode "Poppa Wheely/A Mom Cartoon/The Mock Side of the Moon" is the first to feature Christine Cavanaugh's replacement Candi Milo as the voice of Dexter. Milo would voice the character from the next episode onward, with the exceptions of "Tele Trauma". A fourth and final season consisting of 13 episodes aired from November 22, 2002, to November 20, 2003. In total there have been 78 episodes and a television movie across 4 seasons. Also released was a controversial unaired episode called "Rude Removal", which was originally only shown at certain comic conventions. The segment was later picked up by Adult Swim and released to the public on January 22, 2013, online.

Series overview

Season Episodes Originally aired DVD release dates
Season premiere Season finale Region 1 Region 4
Pilot 4 February 26, 1995 March 25, 1996 October 12, 2010 (with Season 1) February 13, 2008 (with Season 1)
October 25, 2017 (The Complete Series)
1 13 April 27, 1996 January 1, 1997 October 12, 2010 February 13, 2008
October 25, 2017 (The Complete Series)
2 39 July 16, 1997 June 15, 1998 N/A June 11, 2008
October 25, 2017 (The Complete Series)
3 13 November 16, 2001 September 20, 2002 N/A October 25, 2017 (The Complete Series)
4 13 November 22, 2002 November 20, 2003 N/A October 25, 2017 (The Complete Series)
Banned episode 1 February 21, 1998 N/A N/A
TV Movie 1 December 10, 1999 N/A N/A
Theatrical Short 1 July 3, 2002 N/A N/A

Episodes

Title card # Title Airdate Production Code
1995-02-26 - Pilot 'Changes'
001/5c "Changes" February 26, 1995
001
Dexter and Dee Dee test his latest invention: a device that turns people into animals, which yields crazy results.
The Big Sister
002/4c "The Big Sister" March 10, 1996
002
When Dee Dee eats an experimental cookie of Dexter's design, she grows extremely tall and goes on a Godzilla-style rampage, leaving it up to Dexter to don his mecha-suit and bring her back.
Old Man Dexter Title Card
003/1c "Old Man Dexter" March 24, 1996
003
When Dexter attempts to accelerate his aging so he can stay up late to watch "The Late-Early Movie", Dee Dee sneaks into his lab again and causes Dexter to turn into a 95-year-old man, which has dire effects.
Dimwit Dexter Title Card
004/6c "Dimwit Dexter" March 25, 1996
004
When Dexter's brain shuts down as a result of him overworking, he starts behaving erratically and becoming the butt of jokes amongst Dee Dee and all of the kids in the neighborhood.*

Title card # Title Airdate Production Code
Better Dexter's Rival Picture
1a/12a "Dexter's Rival" May 11, 1996*
101a*/112a
Mandark enrolls at Dexter's school, quickly overshadowing Dexter and forces him to shut down his lab to add more power to his own lab. Dexter and Dee Dee hatch a plan to get revenge on him.*
Simion Title Card
1b "Dial M for Monkey: Simion" May 11, 1996*
101b
An intelligent chimpanzee (Maurice LaMarche) tries to enlist Monkey in getting revenge on the humans who created him.
Old Man Dexter Title Card
003/1c "Old Man Dexter" May 11, 1996*
101c*
When Dexter attempts to accelerate his aging so he can stay up late to watch "The Late-Early Movie", Dee Dee sneaks into his lab again and causes Dexter to turn into a 95-year-old man, which has dire effects.
Deedeemensional
2a "DeeDeemensional" April 27, 1996*
102a
When Dexter falls victim to a terrifying creature brought forth by his latest invention, Dee Dee goes back in time one hour earlier to warn him, but Dexter proves to be hard to convince, until he sees two Dee Dees.*
Magmanamus Title Card
2b "Dial M for Monkey: Magmanamus" April 27, 1996*
102b
Monkey must defend a city from a giant lava creature, Magmanamus (Brad Garrett), who only wants the entire world to be quiet so he can get some sleep (for a few centuries). That episode is a parody of the Godzilla giant monster films made in Japan.
Maternal Combat
2c "Maternal Combat" April 27, 1996*
102c
Dexter creates a Mom-Droid to do his mother's chores when she falls ill. However, Dee Dee gets hold of the remote to the robot and wreaks havoc. Dexter desperately creates another one to counter Dee Dee.
Dexter Dodgeball
3a "Dexter Dodgeball" May 4, 1996*
103a
Dexter tries to excuse himself out of P.E. with a fake note, but the new coach does not accept it so Dexter is forced to play dodgeball and endure torment from three bullies.**
Rasslor
3b "Dial M for Monkey: Rasslor" May 4, 1996*
103b
Intergalactic wrestling champion Rasslor ("Macho Man" Randy Savage) comes to Earth looking for a new opponent, and challenges all of Earth's superheroes, threatening to destroy the planet if anyone doesn't beat him. However, Rasslor refuses to wrestle Monkey due to his size. This also marks the first appearance of the Justice Friends.
Dexter's Assistant Title Card
3c "Dexter's Assistant" May 4, 1996*
103c
In need of an assistant for the science fair, Dexter performs a brain transplant on Dee Dee to make her smart enough to fill the role. Unfortunately, with her new brain, Dee Dee turns out to be much smarter than Dexter, much to his chagrin.
Dee Dee's Room
4a "Dee Dee's Room" June 1, 1996*
104a
When Dexter's critical invention goes missing, he suits up and goes into Dee Dee's room to find it.
HUNTOR
4b "Dial M for Monkey: Huntor" June 1, 1996*
104b
Monkey encounters Huntor, an alien hunting master, and must protect Agent Honeydew and the Commander Chief before they get killed.
The Big Sister
002/4c "The Big Sister" June 1, 1996*
104c*
When Dee Dee eats an experimental cookie of Dexter's design, she grows extremely tall and goes on a Godzilla-style rampage, leaving it up to Dexter to don his mecha-suit and bring her back.
Double Trouble
5a "Double Trouble" May 18, 1996*
105a
When Dexter gets caught up in between Dee Dee and her friends Lee Lee and Mee Mee, he uses the Clone-o-Matic to make clones of himself. However, the girls get ahold of the machine and make clones of themselves, making things worse.
Dial M for Monkey-Barbequor
5b "Dial M for Monkey: Barbequor" May 18, 1996*
105b
Monkey's birthday is interrupted by Barbequor, a villain who wants to roast Earth for his next meal.*
1995-02-26 - Pilot 'Changes'
001/5c "Changes" May 18, 1996*
105c*
Dexter and Dee Dee test his latest invention: a device that turns people into animals, which yields crazy results.*
Jurassic Pooch Title Card
6a "Jurassic Pooch (episode)" May 25, 1996*
106a
Dexter uses his dog's brain and heart for a Tyrannosaurus rex, and Dee Dee makes him her pet, despite Dexter's efforts to convince her that its a dinosaur.
Orgon Grindor Title Card
6b "Dial M for Monkey: Orgon Grindor" May 25, 1996*
106b
A space creature with an Italian accent takes over Monkey's mind during his date with Agent Honeydew.
Dimwit Dexter Title Card
004/6c "Dimwit Dexter" May 25, 1996*
106c*
When Dexter's brain shuts down as a result of him overworking, he starts behaving erratically and becoming the butt of jokes amongst Dee Dee and all of the kids in the neighborhood.*
Star Spangled Sidekicks
7a "Star Spangled Sidekicks" November 20, 1996
107a
Dexter and Dee Dee enter tryouts to become Major Glory's sidekick, but they soon realize that fancy costumes are not the only requirement.
TV Super Pals
7b "The Justice Friends: TV Super Pals" November 20, 1996
107b
Krunk, Valhallen, and Major Glory all have programs that come on at 5:30, prompting a huge argument between them.
Game Over
7c "Game Over" November 20, 1996
107c
When Dad buys his children a video game, Dexter gets sucked into the game when he plugs it into Computer's motherboard, leaving Dee Dee to rescue him from his dilemma. The episode is loosely based on Tron.
Babysitter Blued
8a "Babysitter Blues" November 27, 1996
108a
Dexter tries everything to win the heart of his much older babysitter, even sabotaging her relationship with her boyfriend and accelerating his age, only to get knocked out by her boyfriend.
Valhallens Room Title Card
8b "The Justice Friends: Valhallen's Room" November 27, 1996
108b
When Valhallen loses his magic "axe" and starts to transform into a geek, Krunk and Major Glory venture into his room to find it.
Dream Machine Title Card
8c "Dream Machine" November 27, 1996
108c
Dexter has recurring nightmares each night and invents the Dream Machine to help him have only good dreams with Dee Dee's assistance. However, when Dee Dee falls asleep, Dexter's nightmares go from bad to worse.
Way
9a "Way of the Dee Dee" December 11, 1996
109a
Dee Dee tries to change Dexter's ways to be more carefree like her instead of staying focused on science all the time. However, Dexter soon turns much more carefree than his big sister, leaving disastrous results.
Say Uncle Sam
9b "The Justice Friends: Say Uncle Sam" December 11, 1996
109b
Major Glory's uncle, Sam, is about to pay a visit, but the apartment is in no shape for company.
Tribe Called Girl 0001
9c "Tribe Called Girl" December 11, 1996
109c
Wanting to learn more about girls, Dexter spies on Dee Dee and her friends, Mee Mee and Lee Lee during a sleepover. Unfortunately, the girls catch him spying on them and make him participate in their activities.
Space Case
10a "Spacecase" December 18, 1996
110a
Dexter sends Dee Dee in place to avoid being taken away by aliens as part of an experiment, under the pretext that she is going to Candyland. However, Dexter soon regrets his mistake after learning how much he cares for his big sister and goes to save her.
Ratman
10b "The Justice Friends: Ratman" December 18, 1996
110b
While The Justice Friends are trying to fix their plumbing, they head to the basement and see a vigilante named Ratman.
Dexters Debt
10c "Dexter's Debt" December 18, 1996
110c
Dexter's lab is threatened with repossession when he receives a $200,000,000 bill from NASA, the monitors of his lab, prompting to do various deeds to get enough cash. Dee Dee, on the other hand, wins a lottery containing the same amount, making Dexter desperately steal her money. However, she agrees to pay the debt for him, if she has her share of the lab.
Doll House Drama Title Card
11a "Dollhouse Drama" December 4, 1996
111a
After Dexter shrinks himself to doll size, he becomes an unwilling character in Dee Dee's doll story. Due to a side effect of shrinking, he starts to confuse fantasy with reality, and starts to believe the story is real.
Krunk's Date Title Card
11b "The Justice Friends: Krunk's Date" December 4, 1996
111b
Krunk falls in love with She-Thing, the female equivalent of him.
The Big Cheese
11c "The Big Cheese" December 4, 1996
111c
Dexter invents a device in order to learn French in his sleep, but when the record skips and repeats a single phrase all night long, he wakes up to finds that he can only say "Omelette au fromage" (Omelette du fromage) (which roughly translates to "cheese omelet"). This strangely makes Dexter something of a celebrity, until he is faced with his laboratory's explosive security measures.
Bee Where
12b "The Justice Friends: Bee Where?" December 25, 1996
112b
When a bee flies into Muscular Arms, the Justice Friends do whatever they can to chase it out.
Mandarker
12c "Mandarker" December 25, 1996
112c
Taking place after the events of Dexter's Rival, Mandark seeks revenge on Dexter after he and Dee Dee demolish the lab by turning to magic.
Inflata Dee Dee
13a "Inflata Dee Dee" January 1, 1997
113a*
Dee Dee uses Dexter's hydro-plasmatic suit to fly around in the air, prompting Dexter to bring her down.
Cant Nap
13b "The Justice Friends: Can't Nap" January 1, 1997
113b*
Valhallen invites White Tiger to spend a night at Muscular Arms, but Major Glory's cat allergy makes White Tiger feel unwelcome.
Monstory
13c "Monstory" January 1, 1997
113c*
Hoping to silence Dee Dee so he will not have to hear her story, Dexter gives her a silencing potion. However, he grabs the wrong vial and turns her into a monster by mistake. As the effects worsen, Dexter turns to drastic measures to subdue her. As when he does that, they look like giant monsters battling each other and destroying the city with some Godzilla-style giant monster rampages and battles. This is a spoof of the Kaiju films made in Japan.

Title card # Title Airdate Production Code
The Beard to Be Feared
14a "Beard to be Feared" July 16, 1997
201a
After Dexter watches a movie, he grows a beard just like his hero Action Hank. However, the police mistake him for Action Hank and send him to warehouse that's being attacked.
Quackor the Fowl
14b "Quackor the Fowl" July 16, 1997
201b
Mandark does not know that his pet duck is really Quackor the Fowl, Monkey's rival. Quackor overhears Mandark talking in his sleep about destroying Dexter's lab and tries to do it, unaware that Monkey is Dexter's pet.
Ant Pants
14c "Ant Pants (episode)" July 16, 1997
201c
Dexter takes Dee Dee inside his giant ant farm to teach about the ways of ants. However, after learning that while the ants are organized, they are nasty in behavior.
Mom and Jerry
15a "Mom and Jerry" July 23, 1997
202a
Dexter accidentally switches his brain with a mouse, and must avoid his mother when she decides to exterminate him. As the title suggests, this short parodies classic cat & mouse animated subjects such as Tom and Jerry.
Chubby Cheese
15b "Chubby Cheese (episode)" July 23, 1997
202b
At the Chubby Cheese pizza restaurant, Dexter tries to slow down the "Whack the Weasel" machine to win a stuffed Monkey doll before Dee Dee does. When he gets captured by security for tampering with the machine, he falls into the hands of a mad scientist who seeks to use him as his assistant.
That Crazy Robot
15c "That Crazy Robot" July 23, 1997
202c
One of Dexter's robot inventions becomes Dee Dee's servant when she removes a wrench that froze him up, but the robot, much to Dee Dee's dismay, is willing to destroy anyone who is mean to Dee Dee or scolds her, even her friends, her mother, and Dexter himself.
D and DD
16a "D & DD" July 30, 1997
203a
When Dexter's friends become tired of the complicated traps he sets up as Game Master while playing a RPG game, they put Dee Dee in charge for a change of pace. Dexter does not find Dee Dee's style of play as fun as his friends do. A spoof of Dungeons and Dragons board game.
Hamhocks and Armlocks
16b "Hamhocks and Armlocks" July 30, 1997
203b
Dexter's father gets challenged to an arm-wrestling match against a local champion, Earl, at a truck stop which the family car breaks down nearby. Upon seeing Earl's determination to fight their father, Dexter attaches a robotic arm to his body to ensure he wins.
Hunger Strikes
17a "Hunger Strikes" August 6, 1997
204a
Dexter uses radiation therapy so he can like vegetables, but a severe side-effect turns him into an Incredible Hulk-like character if he goes too long without them.
The Koos is Loose
17b "The Koos is Loose" August 6, 1997
204b
Dee Dee's imaginary friend, Koosalagoopagoop (Dom DeLuise), comes to life and annoys Dexter. Koosalagoopagoop later appears in another episode in the series and makes a cameo appearance in The Powerpuff Girls episode "Imaginary Fiend".
Morning Stretch
17c "Morning Stretch" August 6, 1997
204c
Dexter oversleeps after a late-night work at the lab, waking up one minute before his school bus comes, leaving him no time to finish his homework and get ready for school, so he makes a helmet which turns 30 seconds into 30 minutes, unaware that the school is closed due to a snowdown.
Labels
18a "Labels" August 27, 1997
205a
Dee Dee starts to take anything that belongs to Dexter, claiming that it "doesn't have his name on it." He invents a label-making gun to make sure his things do.
Game Show
18b "Game Show" August 27, 1997
205b
Dexter and Dee Dee compete against each other on a game show.
18c "Fantastic Boyage" August 27, 1997
205c
Dexter tries to inject himself into Dee Dee to find a cure to the common cold, but mistakenly ends up inside his dog subsequently believing Dee Dee has been infected with a dog virus.
Dee Dee Locks and the Ness Monster
19a "Dee Dee Locks and the Ness Monster" August 13, 1997
206a
Dexter's mother approaches Dexter to read a bedtime story to Dee Dee when she's sick, but she makes up her own story after being bored by Dexter's story.
Backfire
19b "Backfire" August 13, 1997
206b
Dexter fuses Dee Dee with the family car by accident, causing mayhem.
Bookem
19c "Book 'Em" August 13, 1997
206c
Dexter and Dee Dee must return a library book that was illegally checked out, but Dee Dee's antics make the task more difficult than usual.
Sister's Got a Brand New Bag
20a "Sister's Got a Brand New Bag" August 20, 1997
207a
Dee Dee's new dance moves annoys Dexter to no end.
20b "Shoo, Shoe Gnomes" August 20, 1997
207b
Dexter calls upon the "Shoe Gnomes" to repair his shoes, but cannot rid himself of them afterwards.
20c "Lab of the Lost" August 20, 1997
207c
Dexter ends up in the "old part of the lab" where his earliest inventions, long since forgotten, are not too happy to see him.
Dexter's Lab - Episode 059 soul
21a "Filet of Soul" September 3, 1997
208a
Dexter and Dee Dee do not want to give their dead fish Fishy a proper burial, but are haunted by spirits of him when they do not.
Dexter's Lab - Episode 060 disk
21b "Golden Diskette" September 3, 1997
208b
Dee Dee finds a "golden diskette" allowing her and Dexter to enter Professor Hawk's computer factory. Dee Dee's behavior in the factory frees Professor Hawk from his robotic body.
Ewwthatsgrowth
22a "Ewww That's Growth" September 17, 1997
209a
Tired of his small stature after he cannot get on a rollercoaster, Dexter makes himself taller.
Nuclear Confusion
22b "Nuclear Confusion" September 17, 1997
209b
Dee Dee hides the power core to Dexter's nuclear lamp, and he must decipher her clues within 40 minutes after which it would explode, destroying the earth with it.
Germ Warfare title card
22c "Germ Warfare" September 17, 1997
209c
A very sick Dee Dee gets her germs all over Dexter's lab.
Snowdown
23a "Snowdown" September 10, 1997
210a
When Dee Dee's snowball skills outclass Dexter, their father trains him to be the snowball terror he was at their age. It soon turns out that Dee Dee was trained by their mother, who was a bigger snowball terror than her husband.
Figure Not Included
23b "Figure Not Included" September 10, 1997
210b
Dexter cannot join his local Major Glory gang because he does not have an action figure, so he makes his own. He then learns an important lesson about how his friends should treat him.
Mock 5
23c "Mock 5" September 10, 1997
210c
To race in the "Annual Soapbox Derby down Volcano Mountain", Dexter and his father build the "Mock 5". The episode is a parody of Speed Racer.
24a "Sassy Come Home" October 8, 1997
211a
Dexter hunts for Sasquatch, who befriends Dee Dee because of her similarly huge feet.
Photo Finish
24b "Photo Finish" October 8, 1997
211b
Dee Dee photographs Dexter's lab, and Dexter has to get the film back before his mother sees the pictures of his lab.
A Hard Days Day
25a "A Hard Day's Day" September 24, 1997
212a
Dexter needs to find a way to move the moon, which is blocking Saturn and its "science waves" (which is what makes it a "good day for science"). Unfortunately he brings the moon to the earth, destroying his lab.
Road Rash
25b "Road Rash" September 24, 1997
212b
Dexter's parents get him a bike for exercise, but he's unable to catch Dee Dee on her inline skates. This episode parodies the Wile E. Coyote and Road Runner cartoons, with Dexter trying similar techniques as Wile E. Coyote in capturing Dee Dee, and at one point Dee Dee imitating the Roadrunner with the trademark "Meep-meep!"
25c "Ocean Commotion" September 24, 1997
212b
Dexter's family goes to the beach, where Dexter tries to communicate with whales, and Dee Dee (dressed as a mermaid) is captured by manic pirates.
The Bus Boy
26a "The Bus Boy" October 1, 1997
213a
A couple of girls knock Dexter's pencil into the deep, dark back of the bus, which legend says no one returns from.
Things That Go Bonk In the Night 0001
26b "The Justice Friends: Things That Go Bonk in the Night" October 1, 1997
213b
After a Puppet Pals marathon, Krunk dreams the Puppet Pals are attacking puppet versions of Major Glory and Valhallen.
26c "Ol' McDexter" October 1, 1997
213c
Dexter becomes disappointed when he ends up at an Amish farm instead of the high-tech farm for summer camp. His subsequent attempts to modernize the Amish family do not fall down well with them.
Star Check Unconventional
27a "Star Check Unconventional" October 15, 1997
214a
Dexter and his friends try to escape a Darbie doll convention where they arrived because they were not paying attention to were they were going, while dressed as "Star Check" characters, a parody of Star Trek.
27b "Dexter Is Dirty" October 15, 1997
214b
Tired of bathing, Dexter laminates himself to keep himself clean.
27c "Ice Cream Scream" October 15, 1997
214c
Dexter cannot get the ice cream truck to stop for him following an incident where he paid for his ice-cream in pennies to the driver.
DecodeofHonortitlecard
28a "Decode of Honor" October 22, 1997
215a
Dexter and Dee Dee's secret decoder rings hold the keys to joining the Action Hanks and Pony Puff fan clubs, but the clues do not seem right.
World'sGreatestMomtitlecard
28b "World's Greatest Mom" October 22, 1997
215b
Dexter accidentally gives his mother super powers, when she is hit with a ray of energy. She does not even notice she has superpowers, but she acts like a superhero.
Ultrajerk2000titlecard
28c "Ultrajerk 2000" October 22, 1997
215c
Dexter designs a new robot Ultramark 2000 to help him with his laboratory. Unfortunately, it ends up controlling his lab, so Dexter must find a way to destroy it.
Unfortunate Cookie title card
29a "Unfortunate Cookie" November 12, 1997
216a
Dexter and Dee Dee are stuck together by a Chinese finger trap and must travel to Chinatown to free themselves. This proves difficult, due to their constant bickering.
The Muffin King title card
29b "The Muffin King" November 12, 1997
216b
Dexter and Dee Dee have to keep their father away from their mother's freshly baked muffins while she is out shopping.
Techno Turtle 0001
30a "Techno Turtle" October 29, 1997
217a
Dexter rebuilds an injured turtle Dee Dee befriends.
Surprise
30b "Surprise!" October 29, 1997
217b
In order to see his birthday presents, Dexter turns himself invisible.
Got Your Goat title card
30c "Got Your Goat" October 29, 1997
217c
Dexter and Dee Dee go to South America to catch the legendary chupacabra, which is actually one of Dexter's experiments. He tries to remember what he created it for.
1997-11-05 - Episode 084 'Dee Dee Be Deep'
31a "Dee Dee Be Deep" November 5, 1997
218a
Dee Dee's voice becomes a booming baritone after Dexter attempts to "improve" her singing.
1997-11-05 - Episode 085 911
31b "911" November 5, 1997
218b
When an Action Hank episode is interrupted by the Emergency Broadcast System, Dexter travels around the world to solve the problem. Dee Dee uses her imagination to figure out the ending of the episode, which turns out to be right.
1997-11-05 - Episode 086 dump
31c "Down in the Dumps" November 5, 1997
218c
Dee Dee's favorite teddy bear gets sent to the dump. Dexter and Dee Dee travel to the dump to get it back.
Sports a Poppin
32a "Sports a Poppin" December 3, 1997
219a
Dexter's father wants to teach Dexter some sports, but it soon turns out that Dexter is not athletic, forcing his father to give up.
Koosalagoopagoop
32b "Koosalagoopagoop (episode)" December 3, 1997
219b
Dee Dee enters the land of her imaginary friend Koosalagoopagoop after he lies to her that he is the king of his land.
Project Dee Dee
32c "Project Dee Dee" December 3, 1997
219c
When Dexter learns that Dee Dee is trying to make a science project alone he wants to help her, but she does not want his help. She ends up getting Dexter's help, but she propels the entire school into space.
Dont Be a Baby
33a "Don't Be A Baby" November 26, 1997
220a
Dexter tries to make himself and Dee Dee older in order to see an R-rated movie, but, due to an accidental mishap by Dee Dee, makes everybody (except for Dexter and Dee Dee) babies instead.
Peltra title
33b "Dial M for Monkey: Peltra" November 26, 1997
220b
Peltra wants to turn Monkey into a fur coat.
G.I.R.L.Squadtitlecard
33c "G.I.R.L. Squad" November 26, 1997
220c
After a crime prevention talk at school, Dee Dee and her friends become crime fighters. However, they unintentionally end up being neighborhood criminals.
Picture Day
34a "Picture Day" November 19, 1997
221a
Dexter transforms his face so his school picture will look nice, by molding a handsome face out of wax.
Now Thats a Stretch
34b "Now That's a Stretch" November 19, 1997
221b
Dexter makes himself stretchy using a machine to turn himself into bubble gum.
Dexter Detention
34c "Dexter Detention" November 19, 1997
221c
Dexter gets sent to detention after someone caused him to shout the answer to the first question of the test in annoyance. When Dexter tries to escape the detention room, but this location it's revealed to be the State Prison.
Topped Off
35a "Topped Off" January 14, 1998
222a*
Dexter and Dee Dee try coffee after seeing how it energizes their parents and become addicted to it.
Dee Dee's Tail 0008
35b "Dee Dee's Tail" January 14, 1998
222b*
Dee Dee complains that she wants to be a Pony Puff Princess, so Dexter turns her into a horse. Dexter and Dee Dee's friends try to take advantage of her, and it is up to Pony Puff Princess to rescue her.
No Power Trip
35c "No Power Trip" January 14, 1998
222c*
Dexter uses too much electric power, causing his laboratory to shut down until he can recharge it. However, Dee Dee wisely tells Dexter he must take a moment to enjoy the outdoors.
Dexter's Lab-A-Story
36a "Dexter's Lab: A Story" January 28, 1998
223a*
Dexter adopts a Labrador Retriever and gives him a way to speak human language.
Coupon for Craziness
36b "Coupon for Craziness" January 28, 1998
223b*
Dexter gets accidentally switched with an average hyperactive child who has scientist parents; neither couple notices.
Better Off Wet
36c "Better Off Wet" January 28, 1998
223c*
Dexter tries to avoid being pushed into the family's new swimming pool by his father.
Sister Mom
37a "Sister Mom" January 21, 1998
224a*
Dexter is afraid to bring his mother to see his principal, so he transforms Dee Dee as her.
The Laughing
37b "The Laughing" January 21, 1998
224b*
Dexter is bitten by a clown's dentures, causing him to turn into a clown every night like a werewolf. Now Dee Dee must use the power of mime to stop him and get him back to normal.
Critical Gas
38a "Critical Gas" February 4, 1998
225a*
Dexter assumes that he only has thirty minutes to live after eating an extra-large burrito, however it just turns out to be a huge fart.
Let's Save the World You Jerk!
38b "Let's Save the World You Jerk!" February 4, 1998
225b*
Dexter has to team up with Mandark to prevent asteroids from destroying Earth. They fail due to their arguing, and the asteroids destroy the Earth anyway. Dexter and Mandark continue to fight.
Average Joe
38c "Average Joe" February 4, 1998
225c*
An intelligence test brands Dexter as "average" and the computers that graded it never makes mistakes. He shuts down his lab and lives a normal life.
Rushmore Rumble
39a "Rushmore Rumble" February 11, 1998
226a*
Dexter and Mandark bring the Abraham Lincoln and George Washington faces on Mount Rushmore to life and make them fight each other.
A Boy and His Bug
39b "A Boy and His Bug" February 11, 1998
226b*
When Dexter neglects his pet bug, which he created to devour the things metal that Dee Dee destroys, it begins eating his lab.
You Vegetabelieve It!
39c "You Vegetabelieve It!" February 11, 1998
226c*
Dexter's growth formula causes the plants in the garden to grow to enormous size.
Aye Aye Eyes
40a "Aye Aye Eyes" February 18, 1998
227a*
A silent solitary autistic little girl with big eyes is focused on Dexter and follows him everywhere after he returns a toy she dropped.
1998-02-18 - Episode 113 man
40b "Dee Dee and the Man" February 18, 1998
227b*
Dexter "fires" Dee Dee, only to realize that the chaos she causes has been helping him concentrate.
PaperRouteBouttitlecard
41a "Paper Route Bout" March 4, 1998
228a
Dee Dee's newspaper route is threatened by a team of rogue bicyclists (dressed as ninjas) who cause trouble.*
The Old Switcharooms
41b "The Old Switcharooms" March 4, 1998
228b
Dexter's father makes him and Dee Dee switch each other's rooms as a punishment for running into him (causing his bowling trophy to break). Dexter believes that Dee Dee is destroying his lab and decides to get revenge by destroying her room. After seeing that Dee Dee did nothing but sleep on his bed, Dexter is grounded for destroying her room, trying to escape and breaking his father's bowling trophy again and goes to the Doghouse and the family dog goes to Dexter's Lab but the dog ends up destroying his lab.
Trick or Treehouse
41c "Trick or Treehouse" March 4, 1998
228c
Dee Dee builds a treehouse and will not let Dexter inside to spite him for all the times he kicked her out of his lab; however, everyone but Dexter is allowed in.
Quiet Riot 0001
42a "Quiet Riot" March 11, 1998
229a
Dexter tries to get some sleep, which is complicated by Dee Dee's counterproductive attempts to make sure he has peace and quiet.
Accentyouhate card
42b "Accent You Hate" March 11, 1998
229b
A school bully picks on Dexter and his friends because of the way they talk.
Catchoftheday card
42c "Catch of the Day" March 11, 1998
229c
Dexter's father tries to get himself and Dexter to his fishing spot before the sun comes up and anybody else gets there. If someone gets there first, they have to try again the next day.
Old Flame
43a "Old Flame" February 25, 1998
230a
Dexter brings the caveman who first discovered fire back from the past.
Dont Be a Hero
43b "Don't Be a Hero" February 25, 1998
230b
Dexter tries to turn himself into a superhero, but discovers that hero work is not all it is cracked up to be. He gives up after every power he tries backfires.
My Favorite Martian
43c "My Favorite Martian" February 25, 1998
230c
Dexter travels to Mars to find intelligent life, unaware that Dee Dee has stowed away in his space capsule. After Dee Dee gets covered in red dirt, Dexter thinks she is a real life Martian.
BigBots
44a "Big Bots" April 8, 1998
231a
Dexter and Dee Dee, using their giant robots, try to save an island's population from being destroyed by a volcano.
GooeyAliensThatControlYourMindTitleCard
44b "Gooey Aliens That Control Your Mind" April 8, 1998
231b
Dexter's parents and sister Dee Dee have their minds taken over by an alien life form that escaped Dexter's lab. In the end of episode, Dexter's parents and sister Dee Dee are poorly.*
Dexters Lab - 2x34 0001
44c "Misplaced in Space" April 8, 1998
231c
A transporter malfunction sends Dexter to an alien prison and Dee Dee goes on a mission to save Dexter.
Dad Is Disturbed
45a "Dad is Disturbed" March 18, 1998
232a
Dexter's father tries to watch a golf tournament. But he is constantly distracted by his family. Barney Rubble and Betty Rubble from The Flintstones make an appearance.
Framed
45b "Framed" March 18, 1998
232b
When Dexter's glasses are broken by Dee Dee (when she made a few jokes), he creates a new trend: cracked glasses.
Anim000
45c "That's Using Your Head" March 18, 1998
232c
Dexter thinks a crazy homeless person wearing a metal hat really can communicate with aliens, so he takes the man to his lab to improve the reception of his hat.
Dim
46a "DiM" March 25, 1998
233a
Dexter deals with the annoyances of the hardware superstore to get a light bulb. The episode is notable for containing almost no dialog except for the final punch line.
Just an old
46b "Just an Old Fashioned Lab Song..." March 25, 1998
233b
Dexter takes piano lessons from "Professor Williams" and gradually Dexter discovers he has more musical aptitude than he thought after Professor Williams discovers his lab. Guest starring Paul Williams as Professor Williams.
Repaiaranoid
46c "Repairanoid" March 25, 1998
233c
Dexter enlists the aid of an electrical repairman to improve the electrics in the lab. But the overall electric bill turns out to be very high.
Dexter and Computress Get Mandark
47a "Dexter and Computress Get Mandark!" April 29, 1998
234a
Written and narrated by a six-and-a-half-year-old boy who sent a tape containing the episode's audio to Cartoon Network, the story follows Dexter and Mandark's robot "brother" Computress teaming up with Dexter to make Mandark's head shrink.
47b "The Justice Friends: Pain in the Mouth" April 29, 1998
234b
Krunk gets a tortilla chip stuck in his tooth, and Major Glory decides to fix it by pulling the tooth out himself.
Dexter vs Santas Claws
47c "Dexter vs. Santa's Claws" April 29, 1998
234c
Dexter tries to prove to Dee Dee that "Santa" is really just their father in disguise but is actually wrong.
Sdrawkcab
48a "Sdrawkcab" April 1, 1998
235a
Dexter invents a belt that makes its wearer do everything backwards, but Dee Dee gets her hands on the directional switch.
Continuum of Cartoon Fools
48b "The Continuum of Cartoon Fools" April 1, 1998
235b
Dexter tries to figure out how Dee Dee keeps getting into his lab every time he sends Dee Dee out of one entrance and seals it. Finally, Dee Dee reveals that she entered through the secret book-case entrance, so Dexter seals that too, but later realizes that he can no longer enter his lab.
Sunsurfandsciencetitlecard
48c "Sun, Surf, and Science" April 1, 1998
235c
Mandark enters a surfing contest to win Dee Dee's heart from another surfer.
DeeDeesRival
49a "Dee Dee's Rival" April 15, 1998
236a
Mandark's sister, Olga Astronomonov (a.k.a. Lalavava), tries to upstage Dee Dee at Dance School. However, they call off their rivalry when they learn how much they resemble Dexter and Mandark.
35 Dee Dees Rival - Pslyghtly Psycho - Game for a Game 1
49b "Pslyghtly Psycho" April 15, 1998
236b
It is Mother's Day, but Dexter's mother cannot find her trademark gloves and her family teases her by doing a very poor job trying to clean the house.
Game For a Game 0001
49c "Game for a Game" April 15, 1998
236c
Dee Dee claims she can beat Dexter in any game, but fails to realize that Dexter can think up very confusing games. In the end, Dexter's Lab is destroyed which he's turned into a sandwich.
Anim054
50a "Blackfoot and Slim" April 22, 1998
237a
A nature documentary team observes "Blackfoot" (Dexter) and "Slim" (Dee Dee) in their "natural habitat".
Trapped With a Vengeance 0001
50b "Trapped with a Vengeance" April 22, 1998
237b
The school janitor plans revenge on Dexter for making him stay late every night until Dexter leaves.
Anim001
50c "The Parrot Trap" April 22, 1998
237c
Dexter has to keep his robot parrot from telling his parents about his lab.
Dyno Might
51a "Dyno-Might" May 6, 1998
238a
Blue Falcon asks Dexter to fix Dynomutt, but Dexter instead builds a new Dynomutt that does everything wrong.
LABretto
51b "LABretto" May 6, 1998
238b
In this musical episode, Dexter's life is shown in opera form.
Last But Not Beast
52 "Last But Not Beast" June 15, 1998
239
During a trip to Japan as part of a student exchange program, Dexter accidentally releases a monster with an axe-like head from a volcano (parody of Godzilla or, Gamera), forcing Dexter to enlist the aid of his entire family in order to defeat it. This episode, a spoof of anime, Voltron, the Super Sentai/Power Rangers genre and kaiju films, is the series' first full episode-length story, and also features the casts of The Justice Friends and Dial M for Monkey in battle against the monster. During the battle, Dexter finally reveals to his parents the secret of his lab, but he erases it from their memories after defeating the monster. Dexter also finds out that his lab monkey is a superhero, but Monkey erases this from Dexter's memory at the end of the episode. The title is a play on the phrase, "last but not least," indicating this was intended to be the series finale, until the series returned in 2001 for a third season.

Title card # Title Airdate Production Code
Anim034
53a "Streaky Clean" November 16, 2001*
301a
Dexter creates a satellite to clean stains off of his clothes, but it goes horribly wrong when another satellite hits the satellite that Dexter created and the satellite becomes damaged, causing the fabric beneath each stain to be eliminated as well.
Anim029
53b "A Dad Cartoon" November 16, 2001*
301b
Dad decides to give the car a retouch, but keeps breaking things and saying he will fix it later. After having enough, he pushes the car over a cliff, and below it are other crushed cars, meaning this was not the first time.*
Sole Brother
53c "Sole Brother" November 16, 2001*
301c
Dexter accidentally becomes Dee Dee's foot when the two fuse together. Now they have to wait 24 hours to reverse the fusion.*
Mind Over Chatter Title Card
54a "Mind Over Chatter" November 16, 2001*
302a
Dexter accidentally gives himself telepathy that he cannot shut off when trying to overhear his father's thoughts to figure out what he got for his birthday, causing everyone to read his own mind.
A Quackor Cartoon
54b "A Quackor Cartoon" November 16, 2001*
302b
Quackor returns to battle Monkey in Dexter's Lab until Quackor lays an egg; then the two fall in love.
Momdark
54c "Momdark" November 16, 2001*
302c
Mandark disguises himself as Dexter's mom to get into Dexter's Lab. Unfortunately he has to deal with Dexter, Dad, and Dee Dee's requests.
55a "Poppa Wheely" January 18, 2002
303a*
It is Career Day, and because Dexter is ashamed of his father, he creates a better father.
55b/64b "A Mom Cartoon" January 18, 2002*
303b*/312b*
Dexter's mom fights another woman at the supermarket for some new latex gloves.
55c "The Mock Side of the Moon" January 18, 2002
303c*
Dexter travels to the moon and finds that aliens are planning an invasion.
Copping an Aptitude
56a "Copping an Aptitude" November 30, 2001
304a
Dexter's school and parents decide to send him to college. He ignores his fellow students, who prefers to "party now, study later", until his mind finally snaps from the workload.
56b "A Failed Lab Experiment" November 30, 2001
304b
When Dexter's new device, made to help him see through solid objects, fails to work as expected, he ends up seeing through people's clothes.
56c "The Grand-Daddy of All Inventions" November 30, 2001
304c
During a trip to his grandfather's house, Dexter learns that the outwardly boring old man has a lab just like his own.
57a "A Boy Named Sue" March 29, 2002
305a*
Mandark's origin is revealed.
57b "Lab on the Run" March 29, 2002
305b*
Two robots escape from Dexter's lab in order to have a better life, because if a robot makes even the tiniest mistake, Dexter turns them into cubes of steel.
5BFFAF89-C05C-4B06-A41D-DF3AE514900C
58a "If Memory Serves" February 22, 2002
306a*
To keep himself from forgetting anything important, Dexter uses a device to copy his memories.
58b "A Mandark Cartoon" February 22, 2002
306b*
Mandark plans another scheme to get rid of Dexter. Everything in this cartoon is to the tune of Mandark's trademark laugh.
1A8CE519-6CC0-4B7E-8794-81ECD7B26FAA
58c "Tele Trauma" February 22, 2002
306c*
Since his studying is interrupting his favorite TV shows, Dexter creates a helmet to absorb the shows directly.
Dos Boot
59a "Dos Boot" June 7, 2002
307a*
Mandark gets inside Dexter's computer system, so Dexter must follow him inside.
A Dee Dee Cartoon
59b "A Dee Dee Cartoon" June 7, 2002
307b*
Dee Dee goes and plays in her own "lab" after being kicked out of Dexter's.
Would You Like That in the Can
59c "Would You Like That in the Can" June 7, 2002
307c*
Dexter and his friend Douglas Mordecai must enter the girls bathroom to retrieve Dexter's lunchbox.
60a "That Magic Moment" June 14, 2002
308a*
Dexter's magician uncle pays a visit.
60b "A Silent Cartoon" June 14, 2002
308b*
Dexter is trying to paint his lab blue, but Dee Dee wants to make it pink. (Spoof of Pink Panther cartoon The Pink Phink).
60c "Opposites Attract" June 14, 2002
308c*
Dexter creates a magnetic field to keep Dee Dee away from him.
61a "Oh, Brother" July 5, 2002
309a*
Dexter turns his sister into a boy, but is disappointed when "he" is not as genius as Dexter would like.
Another Dad Cartoon
61b "Another Dad Cartoon" July 5, 2002
309b*
With everyone out of the house, Dexter's father decides to spend the time dancing.
61c "Bar Exam" July 5, 2002
309c*
Dexter must pass a physical exam if he wants to pass P.E. and move up a few grades.
62a "Comic Relief" June 21, 2002
310a*
Dexter creates a device to make a lifelike superhero comic, with his sister villain "Deestructa".
62b "A Third Dad Cartoon" June 21, 2002
310b*
Dexter's father plays golf with his kids. (Spoof of Nickelodeon's Sports Cartoon shorts of the 1980s).
62c "Robo-Dexo 3000 (episode)" June 21, 2002
310c*
Dexter creates the ultimate robot to replace his previous model.
63a "Glove at First Sight" June 28, 2002
311a*
Dexter's parents remember their first date and dance.
63b "A Mom & Dad Cartoon" June 28, 2002
311b*
Dexter and Dee Dee listen in on their parents' conversation, they are playing Scrabble, but the way they talk makes it sound like Dad was cheating on Mom.
63c "Smells Like Victory" June 28, 2002
311c*
The U.S. army invades Dexter's lab under the mistaken impression that aliens are using it as a base.
64a "Scare Tactics" September 20, 2002
312a*
After watching a horror film, Dexter and his father become easily frightened.
64c "My Dad vs Your Dad" September 20, 2002
312c*
Dexter and Mandark's fathers become embroiled in a conflict after trying defuse one between their sons.
65a "Jeepers, Creepers, Where Is Peepers?" July 12, 2002
313a*
Dee Dee and Koos must save Peepers to keep the land of Kooz from disappearing.
65b "Go, Dexter Family! Go!" July 12, 2002
313b*
Dexter's family must rescue him from aliens.

Title card # Title Airdate Production Code
Sis-Tem Error
66a "Sis-Tem Error" April 25, 2003
401a*
Dee Dee accidentally shuts down Dexter's lab.
66b "Bad Cable Manners" April 25, 2003
401b*
Dexter pirates cable for his father.
Dexter's Library
66c "Dexter's Library" April 25, 2003
401c*
Dexter becomes the stern administrator of his local library.
67a "Beau Tie" November 22, 2002
402a
Dee Dee has a new boyfriend who likes science and Einstein. Unfortunately, when Dexter tries to get the boyfriend, named Beau, to see his stuff, Beau ends up running away from the both of them in fear.
67b "Remember Me?" November 22, 2002
402b
When Dexter gets amnesia, Dee Dee decides to play tricks on him by creating a whole new identity for him.
Overlabbing
67c "Over-Labbing" November 22, 2002
402c
Dexter and Mandark drill underground to expand their labs, but end up running into each other's work. So they agree to share the lab, inducing chaos.
Dexter's Little Dilemma
68a "Dexter's Little Dilemma" May 9, 2003
403a*
Dexter shrinks his parents and puts them into a model of their house for observation.
Faux Chapeau
68b "Faux Chapeau" May 9, 2003
403b*
Dexter's newest invention looks like a hat, so Dee Dee takes it and wears it around town.
Dsquare
68c "" May 9, 2003
403c*
Dexter and Dee Dee realize that they make a good team. They decide to do stuff together, but that only makes things worse.
69a "Head Band" May 16, 2003
404a*
Dee Dee gets a song stuck in her head which is actually a virus. Dexter and Mom soon catch it too.
69b "Stuffed Animal House" May 16, 2003
404b*
Dee Dee's stuffed animals come to life and roam the house when Dee Dee uses a formula that brings inanimate objects to life.
69c "Used Ink" May 16, 2003
404c*
Dexter creates a new type of ink that lets him command people to do whatever he wants. However, when Mandark gets his hands on it, Dexter becomes the one being commanded.
The Scrying Game
70a "The Scrying Game" May 2, 2003
405a*
Dee Dee learns a new game that can predict the future.
Monstrosi-Dee Dee
70b "Monstrosi-Dee Dee" May 2, 2003
405b*
A monster is roaming Dexter's lab, but he does not realize that it is actually Dee Dee, under the effects of one of his experiments.
Dad Man Walking
70c "Dad Man Walking" May 2, 2003
405c*
Dexter's father sleepwalks into his son's lab.
Dexter the Barbarian
71a "Dexter the Barbarian" May 30, 2003
406a*
Dexter tries to emulate the barbarian hero of his favorite comic book.
Tuber Time
71b "Tuber Time" May 30, 2003
406b*
Dexter studies the potato. When he is fascinated by its power to light up a light bulb, tries to use it as an energy source.
Sore Eyes Title Card
71c "Sore Eyes" May 30, 2003
406c*
Dexter tries to improve his eyesight by giving himself laser eye surgery, but goes too far in doing so.
SchoolGirlCrushedCard
72a "School Girl Crushed" May 23, 2003
407a*
Dexter and Mandark are both outperformed by a new girl at school, so they team up to get rid of her.
72b "Chess Mom" May 23, 2003
407b*
Dexter's mother attempts to support him during a chess tournament but does nothing but embarrass him.
Father Knows Least
72c "Father Knows Least" May 23, 2003
407c*
Dexter's father is left to watch the kids while his wife visits her sister.
Height Unseen
73a "Height Unseen" September 12, 2003
408a*
Again tired of being short, but mindful of his past failures, Dexter decides to make everyone shorter than himself.
Bygone errors
73b "Bygone Errors" September 12, 2003
408b*
An elder Dexter talks about the glory days, and his sister is still there to inject her opinions, telling him what really happened.
Folly calls
73c "Folly Calls" September 12, 2003
408c*
When Dee Dee accidentally chops off her pigtail, Dexter gives her some hair growth potion.
74a "Voice Over" September 19, 2003
409a*
When Dexter's computer gets laryngitis, Dexter must find a replacement voice.
The Blonde Leading the Blonde
74b "The Blonde Leading the Blonde" September 19, 2003
409b*
Dexter refuses to admit that blondes have more fun, so Dee Dee secretly dyes his hair blond to prove it to him.
74c "Comic Stripper" September 19, 2003
409c*
Dexter finds out that all of Mandark's plans are taken from a comic book.
75a "Tee Party" September 26, 2003
410a
Dexter and his father enter a golf tournament, but Dexter's father proves inept at the sport.
Dexters Wacky Races
75b "Dexter's Wacky Races" September 26, 2003
410b
Dexter, Monkey, the Justice Friends, Dee Dee, her imaginary friend Koosalagoopagoop, Mandark, his parents, and Dexter's parents participate in a cross-country race.
76a "The Lab of Tomorrow" November 4, 2003
411a
Monkey narrates a documentary of the future of laboratories and sciences.
Chicken scratch title card
SH01/76b "Chicken Scratch" November 4, 2003
411b*
Dexter catches the chicken pox, and Dee Dee tells him a ridiculous tale that if he keeps scratching them, he will turn into an evil chicken. His nonstop scratching eventually does just that.
76c "Garage Sale" November 4, 2003
411c
Dexter creates a device that turns people into hideous blobs. His parents then sell it at a garage sale, where it ends up in Mandark's hands.
77a "They Got Chops" November 20, 2003
412a
When Dee Dee's Judo skills prove too much for Dexter, Dexter learns how to fight back from the same dojo she went to.
77b "Poetic Injustice" November 20, 2003
412b
Dexter falls in love with a new girl at his school, but cannot win her heart.
77c "Comedy of Feathers" November 20, 2003
412c
Dexter is forced to take Dee Dee to the zoo; she ends up trying to save an ostrich, with disastrous results.
Babe Sitter
78a "Babe Sitter" September 5, 2003
413a
Dee Dee is hired by Mandark's parents to babysit him.
Mountain Mandark
78b "Mountain Mandark" September 5, 2003
413b
Mandark gets in touch with nature.
2Geniuses 2Gether 4Ever
78c "2Geniuses 2Gether 4Ever" September 5, 2003
413c*
Dexter decides to work with Mandark, but finds himself doing all the work.*

Title card # Title Airdate Production Code
Rude Removal
Unknown "Rude Removal" February 21, 1998*
Unknown
As Dexter is putting the finish touches on his newest invention, the "Rude Removal System", Dee Dee shows up, interrupting Dexter as usual. Dexter explains his new invention and plans to remove the rudeness from Dee Dee, causing the siblings to engage in a fight. Inadvertently, the Rude Removal System is activated, and the two end up inside of the device, splitting the pair into well-behaved and rude halves. The rude halves constantly use profanity and break things. As their mother calls them for lunch time, the rude halves go to the kitchen. There, they cause a mess and act insubordinate, enraging their mother. The well-behaved halves soon follow and are forced to answer for the mess their counterparts caused. Eventually, the rude halves end up in Dexter's laboratory, destroying his lab. The well-behaved halves think up of a plan to trap the rude halves in the Rude Removal System and activate a reversal sequence to merge back together. Once they have merged and head out of the lab, they encounter their mother with a bar of soap to literally wash out her kids' mouths to which Dexter responds with "Oh, ****"
Shortly after its release, the episode was set to 'unlisted' on YouTube and fully removed from AdultSwim.com.

Title card # Title Airdate Production Code
F1 "Ego Trip" December 10, 1999
F1
An army of robots comes out of Dexter's time machine, under orders to "destroy the one who saves the future." Believing them to mean him, Dexter travels to the future in order to see this event happen. He is horrified to find himself a wimpy young man, who works designing office cubicles for Mandark, his boss. Dexter convinces his older self that he is a genius who will one day save the future, and they travel to a later time together. Although they arrive in a scientific utopia, they find that the Dexter in this period is a doddering old man who can barely remember anything he has ever done. Backing up a few years, the three Dexters discover the world has fallen into ruin, and the inhabitants are extremely stupid. The Dexter in this time is a muscular hero, who reveals that Mandark stole his most prized invention, the Neurotomic Protocore (which D22 left in his cubicle). However, Mandark did not use the core correctly and reversed its energies, causing the widespread stupidity and allowing him to forbid technology to all but himself. All four of them team up to bring down Mandark, using the laboratory to build a large robot to storm Mandark's castle. When they arrive to confront Mandark, he summons his counterparts from the time period of each Dexter. At the climax of the battle, Dee Dee appears from the time machine and is revealed to be the one who saves the future (due to her curiosity about buttons). In a jealous rage, the Dexters build and send back through time an army of robots to destroy her — the very same seen at the beginning of the film. As the original Dexter returns to his own time and sees himself fighting with the robots, he realizes he has completed the cycle of events. However, tired of the whole ordeal, he decides to forget it and have a snack.

Title card # Title Airdate Production Code
Chicken scratch title card
SH01/76b "Chicken Scratch" July 3, 2002
411b
Dexter catches the chicken pox, and Dee Dee tells him a ridiculous tale that if he keeps scratching them, he will turn into an evil chicken. His nonstop scratching eventually does just that.