Season 3
Episodes
1. Streaky Clean
Dexter creates a device to keep his clothes clean.
2. A Dad Cartoon
Dad decides to give the car a retouch.
3. Sole Brother
After a failed mutation experiment, Dexter becomes Dee Dee's foot.
4. Mind Over Chatter
Dexter uses a device to listen to what Dad is thinking, but the experiment backfires and everyone else can hear what Dexter is thinking.
5. A Quackor Cartoon
Quackor returns to battle Monkey in Dexter's Lab.
6. Momdark
Mandark disguises as Mom in order to get into Dexter's Lab.
7. Copping an Attitude
Because of his exceptional grades Dexter's school and parents have decided that he can go to college. At first Dexter is happy to be there so he can fill his mind with college knowledge, but in the end the students influence on Dexter allows him to do college pranks sending him a one way ticket back to Huber Elementary School.
8. A Failed Lab Experiment
Dexter creates a device taht doesn't work the way he wanted.
9. The Grand Daddy of All Inventions
Dexter's mom takes him to his grandpa's house. At first he thinks it's going to be a boring day until he discovers that his grandpa has a secret lab!
10. Poppa Wheely
It's career day and Dexter is ashamed of his Dad so he creates a Dad that looks more like him.
11. A Mom Cartoon
Mom spends a day at the supermarket.
12. The Mock Side of the Moon
Dexter travels to the moon and finds aliens that are planning to come to Earth to take everything.
13. If Memory Serves
Fearing that his memory might be limited, Dexter uses a device to save all his memories.
14. A Mandark Cartoon
Mandark plans another scheme to get rid of Dexter.
15. Tele Trauma
Tired of missing his favorite TV shows because of studying, Dexter creates a special helmet that absorbs all the TV info.
16. A Boy Named Sue
How did a young child called Susan became the being now known as Mandark? Born to free spirits, and with a passionate determination to harness the forces of science for his own ends, this is his story...
17. Lab on the Run
Two robots escape from Dexter's lab in order to have a better life.
18. Dos Boot
Mandark gets in Dexters computer raving havok, so Dexter must stop him.
19. A Dee Dee Cartoon
After being kicked out of Dexter's Lab (AGAIN) She goes and plays in her ""lab"".
20. Would You Like That In The Can
A girl accidentally takes Dexter's lunchbox, so Dexter and his friend must go into the girls bathroom to get it.
21. That Magic Moment
Dexter's Magic Uncle Ferger 'O Reiley pays a visit.
22. A Silent Cartoon
Dexter is trying to build his lab blue, but Dee Dee keeps making it pink.
23. Opposites Attract
Dexter creates a magnetic field to keep Dee Dee away from him.
24. Comic Relief
Dexter creates a special device that lets him create his own life-like superhero comic... along with his sister villian ""Deestructa"".
25. A Third Dad Cartoon
Dad goes with the kids to play some golf.
26. RoboDexo 3000
Dexter creates the ultimate robot (RoboDexo 3000) to replace his previous 200 model.
27. Glove at First Sight
Mom and Dad recall the moments that got them together.
28. A Mom & Dad Cartoon
Mom and Dad are having a discussion while playing scrabble, a discussion that Dexter and Dee Dee don't interpretate the right way.
29. Smells Like Victory
The U.S. army invades Dexter's lab and Dexter fights them, each side thinking the other is a troop of aliens.
30. Oh, Brother
Dexter uses his newest creation to turn Dee Dee into a boy, but the male version of Dee Dee (Doo Dee) is not as cool as Dexter it would.
31. Another Dad Cartoon
While Mom, Dexter and Dee Dee are out shopping, Dad decides to spend the afternoon dancing... like Tom Cruise in Risky Business.
32. Bar Exam
Dexter must pass a physical bar exam if he wants to pass P.E.
33. Jeepers, Creepers, Where is Peepers?
Dexter and Koosy must save Peepers, otherwise the whole land of Koz will disappear.
34. Go, Dexter Family, Go!
Dexter and his family are kidnapped by aliens, Dexter leads his family in an escape attempt, but when Dexter is captured once more, Mom, Dad, and Dee-Dee attempt to save him.
35. Scare Tactics
Dexter and Dad watch a late night horror movie and spend a scary night in their house.
36. My Dad vs. Your Dad
Both Dexter and Mandark's fathers intercede during another of Dexter and Mandark's petty squabbles, but their effort to get along with one another backfire, and the two also soon engage in a heated fight.