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Season 4 Episodes
38 episodes
1
70
Beau Tie
Dee-Dee has a new boyfriend who also likes science and Einstein, and soon the boy finds himself caught in a vicious tug of war...
2
70
Remember Me?
Dexter is hit by a wrench while working on a device, and suffers amnesia, Dee Dee decides to mess with his head
3
70
Overlabbing
Dexter and Mandark drill underground to expand their labs, but end up overlapping each other's work. They secretly devise a plan to destroy each other.
4
70
Sis-Tem Error
Dee Dee accidentally breaks down Dexter's lab, and she tries to not and let him know its broken.
5
70
Bad Cable Manners
Dad wants cable really bad, so Dexter illegally pirates cable for him.
6
70
Dexter's Library
When Dexter becomes the head of a library, he inforces the rules really hard, driving everyone crazy.
7
70
The Scrying Game
Dee Dee learns a new game that can ""predict peoples futures"". She uses it on Dexter, and finds out that the game REALLY DOES predict peoples futures...
8
70
Monstrosi-Dee Dee
A Monster starts roaming Dexter's lab, although Dexter doesnt know its just Dee Dee, who ate an apple in a failed lab experiment.
9
70
Dad Man Walking
Dexte'rs father begins to sleepwalk, and accidently stumbles into Dexter's Lab
10
70
Dexter's Little Dilemma
Dexter accidentally shrinks his parents, and puts them into a model of there house. Although the house isnt completed, so Dexter must find a way to reverse it before they know the truth.
11
70
Faux Chapeau
Dexter creates a new invention and wears it on his head. It suddenly becomes the latest fashion craze at Huber elementry.
12
70
D²
Dexter and Dee Dee realise when they work together, they make a pretty good team.
13
70
Head Band
Dee Dee has a song stuck in her head. Literally.
14
70
Stuffed Animal House
Dee Dee's stuffed animals come to life and roam the house. Dee Dee and Dexter must get them before Mom and Dad find out.
15
70
Used Ink
Dexter creates an ink in which lets him command them to do whatever he wants them to do. Although when Mandark gets a hold of it, Dexter is the one being the slave.
16
70
School Girl Crushed
Decxter and Mandark are both outperformed by a new girl attending the school, jealous, they become allies to deal with her.
17
70
Chess Mom
Mom thinks she should spend quality time and watch Dexter in his chess comatition. Although, she really embarasses Dexter while hes there...
18
70
Father Knows Least
Dad gets fired from his job, and has to do the same job Mom does. He realises it isnt as easy as it looks.
19
70
Dexter the Barbarian
Dexter goes on a quest. His quest is to reach the bathroom before he explodes.
20
70
Tuber Time
When Dexter realises the power of the potato, he redesigns his lab to work on it.
21
70
Sore Eyes
Dexter is tired of wearing glasses, so he uses laser surgery on his eyes to make him have 1/20 vision. Although, he learns than no human should be able to see THIS well...
22
70
Babe Sitter
Dee Dee goes over to Mandark's house to baby sit him, and Mandark likes that idea.
23
70
Mountain Mandark
Mandark drops technology and starts being more in touch with nature.
24
70
2Geniuses 2Gether 4Ever
Dexter decides its better if him and Mandark work together, although in the end Dexter does all the work while Mandark does nothing
25
70
Height Unseen
Dexter is tired of being short, since his old plan of growing himself didnt work, he decides to make everyone shorter than him.
26
70
Bygone Errors
This takes place in the future, where Old Man Dexter tells about his ""glory days"". And Old lady Dee Dee keeps on adding her opinions as well...
27
70
Folly Calls
When Dee Dee accidentally chops off her pigtail, Dexter gives her some hair growth potion. Although when she uses it, her hair floods the entire house.
28
70
Voice Over
When Dexter's Computer gets Laryngitus, Dexter must find a replacement voice for her.
29
70
The Blonde Leading the Blonde
Dexter refuses to see that blonde's have more fun, so he dyes Dee Dee's hair to prove it.
30
70
Comic Stripper
Dexter finds out that all of Mandark's plans are taken from a comic book. This way, he can get ready.
31
70
Tee Party
Dexter and his dad enter a Golf tournament, with Dad eager to get his hands on the Trophy, but there is one problem: he is hopeless at Golf, so Dexter decides to help with a remote controlled Golf ball
32
70
Dexter's Wacky Races
Dexter, Monkey, The Justice Freinds, Dee-Dee, her imaginary freind Coosie, Mandark, his parents, and Dexter's Parents participate in a cross-country race
33
70
The Lab of Tomorrow
Monkey narrates a documentry of the future of Laboratories and sciences.
34
70
Chicken Scratch
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.
35
70
Garage Sale
Dexters parents accidentally sell Dexter's latest invention, and it is bought by Mandark.
36
70
They Got Chops
Dee Dee starts layin' down the Judo on Dexter, then Dexter learns how to fight back.
37
70
Poetic Injustice
Dexter falls in love with a new girl at his school, but decides to impress her with poetry rather than science.
38
70
Comedy of Feathers
When Dee Dee sees an Ostrage at the Zoo, she wants one of her own as a pet.