The BEST episodes of Dexter's Laboratory season 1
Every episode of Dexter's Laboratory season 1, ranked from best to worst by thousands of votes from fans of the show. The best episodes of Dexter's Laboratory season 1!
Sleep tight, America! Your fate lies safely in the hands of Dexter, a child genius who whips up dazzling, world-saving inventions in his secret laboratory. Big sister Dee Dee frequently wrecks his experiments, but his bigger nemesis is Mandark, his brilliant rival at Huber Elementary School. Mom and Dad, of course, have no idea what their little angel is up to.

#1 - Old Man Dexter
Season 1 - Episode 9 - Aired 5/12/1996
After Dexter is banned from watching The Late Early Movie due to his age, he decides to accelerate his age so that he can see the movie, but Dee Dee tampers with the age acceleration process, causing him to turn into a 95-year old man.

#2 - Monstory
Season 1 - Episode 38 - Aired 1/1/1997
Dexter accidentally turns Dee Dee into a monster, so he has to turn into one himself to stop her.

#3 - Mandarker
Season 1 - Episode 35 - Aired 12/25/1996
Dexter and Mandark participate in a science fair competition, but Mandark finds himself completely without resources, desperate, he turns to the dark magics...

#4 - Tribe Called Girl
Season 1 - Episode 30 - Aired 12/11/1996
Dee Dee, LeeLee and MeeMee are having a pajama party, which Dexter decides to explore to learn the behavior of other "species".

#5 - Inflata Dee Dee
Season 1 - Episode 36 - Aired 1/1/1997
Dee Dee tries on Dexter's inflatable suit, and is swept away on the wind. In getting her down, Dexter accidentally destroys the suit. Dee Dee fixes it by tying balloons to it.

#6 - The Big Cheese
Season 1 - Episode 27 - Aired 12/4/1996
Dexter decides to study french with an old record, but when the record repeats constantly "Omellete du fromage", it becomes everything Dexter can say.

#7 - Jurassic Pooch
Season 1 - Episode 13 - Aired 5/26/1996
Dexter creates a Tyrannosaurus Rex that has the brain and heart of a dog, and Dee Dee makes him her pet.

#8 - Way of the Dee Dee
Season 1 - Episode 28 - Aired 12/11/1996
Dee Dee tries to get Dexter to loosen up. It works, but Dexter ends up trying to destroy his lab. Dee Dee realizes her mistake, that she tried to change who Dexter is.

#9 - Dexter's Rival
Season 1 - Episode 7 - Aired 5/12/1996
Mandark enrolls at Dexter's school, quickly overshadowing Dexter and forces Dexter to shut down his lab to add more power to his own lab. When Mandark falls in love with Dee Dee, Dexter sets up a date between the two (only because he knew Dee Dee would destroy Mandark's lab).
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#10 - The Justice Friends: Say Uncle Sam
Season 1 - Episode 29 - Aired 12/11/1996
Mayor Glory has one week to teach Valhallen and Krunk some manners before his Uncle Sam arrives.

#11 - Dial M for Monkey: Barbequor
Season 1 - Episode 11 - Aired 5/19/1996
Monkey's birthday is interrupted by Barbequor, a villain who wants to roast Earth for his next meal.

#12 - Double Trouble
Season 1 - Episode 10 - Aired 5/19/1996
In order to rid himself of Dee Dee, Dexter clones himself. However, Dee Dee, and her friends, Mee Mee and Lee Lee do the same, causing havoc.

#13 - The Justice Friends: Ratman
Season 1 - Episode 32 - Aired 12/18/1996
While searching the basement, the Justice Friends discover a new hero with the special ability of repairing.

#14 - Dial M for Monkey: Magmanamus
Season 1 - Episode 2 - Aired 4/28/1996
Due to all the noise being made by all the citizens of the city on a daily basis, the monster Magmanamus is awakened. However, when he goes to the surface to try and get the people to be quiet, he ends up causing even more noise since the people are frightened of him. Now, Monkey prepares to fight him, unaware that Magmanamus only wants peace and quiet, so he can sleep.
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#15 - Deedeemensional
Season 1 - Episode 1 - Aired 4/28/1996
When Dexter falls victim to a terrifying creature brought forth by his latest invention, Dee Dee goes back in time to warn him. The events only end the episode with a permanent time loop.

#16 - Dream Machine
Season 1 - Episode 24 - Aired 11/27/1996
Haunted by nightmares about Dee-Dee explaining to Einstein the purpose of meaning, Dexter decides to induce pleasant dreams into his mind scientifically. Using a barely awake Dee-Dee to operate his Dream Machine, Dexter embarks on a wondrous little adventure where he absorbs knowledge, learns all languages, and learns how to program a VCR. His dream goes well until Dee-Dee accidentally gives the machine a little nudge in the wrong direction.

#17 - Dexter's Assistant
Season 1 - Episode 6 - Aired 5/5/1996
When Dexter's new invention for the science fair proves to hard for him to handle on his own, he is forced to find a new assistant. When no suitable assistant can be found, he takes on DeeDee, but only after giving her some new brains.
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#18 - Spacecase
Season 1 - Episode 31 - Aired 12/18/1996
To get rid of some aliens, Dexter offers Dee Dee as a test subject tricking her into thinking they're going to candy land. The guilt drives Dexter crazy and he goes to rescue her. The aliens willingly gives Dee Dee back (she wrecked their ship looking for candy).

#19 - The Justice Friends: Can't Nap
Season 1 - Episode 37 - Aired 1/1/1997
Major Glory tries to keep White Tiger out of his property with Krunk to help him.

#20 - Game Over
Season 1 - Episode 21 - Aired 11/20/1996
A video game takes over Dexter's lab.

#21 - Dial M for Monkey: Simion
Season 1 - Episode 8 - Aired 5/12/1996
The result of a space experiment, Simion, a super intelligent chimpanzee, plans to get revenge on humans for the way he is now. However, he teleports Monkey onto his ship in order to convince him to join him in his plan for revenge. After almost being convinced, Monkey attempts to show Simion that revenge isn't the answer.
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#22 - Changes
Season 1 - Episode 12 - Aired 5/19/1996
Dexter and Dee Dee test his latest invention: a device that turns people into animals, which yields crazy results.

#23 - Dollhouse Drama
Season 1 - Episode 25 - Aired 12/4/1996
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.

#24 - Dial M for Monkey: Rasslor
Season 1 - Episode 5 - Aired 5/5/1996
Tired of never having a worthy opponent, intergalactic wrestling champion Rasslor arrives on Earth hoping to find someone who can actually prove to be a match for him. So, he challenges all of Earth's superheroes to wrestling matches aboard his ship, which they anxiously accept. However, Rasslor refuses to wrestle Monkey due to his size, even though Monkey is the most eager to wrestle him.
Watch Now:Apple TV
#25 - Babysitter Blues
Season 1 - Episode 22 - Aired 11/27/1996
Unable to win the heart of his babysitter, Dexter ages himself in the hopes of having better luck.