Unconventional / Dexter Is Dirty / Ice Cream Scream
Season 3, Episode 1 Unrated
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"Unconventional" Mom drops Dexter and two of his friends off at the Star Check Convention - they're dressed as Capt. Irk, Spork and Phones (respectively). Mayhem ensues when the three little checkies wander into the doll convention by mistake. "Dexter is Dirty" Irritated at always having to wash his hands and himself, Dexter laminates his body from head to toe. The only problem is that now he's so slick and slippery that he can't do anything. "Ice Cream Scream" After several unsuccessful attempts to flag down the ice cream truck, it becomes clear that the ice cream man is purposely avoiding Dexter. Using some high-tech tricks, Dexter finally catches him, but learns that the ice cream man was ignoring him because of a past purchase that totally devastated his life.
Decode of Honor / World's Greatest Mom / Ultrajerk 2000
Season 3, Episode 2 Unrated
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In `Decode of Honour', Dexter and Dee Dee mix up their Action Hank and Pony Puffs membership rings. In `World's Greatest Mom', Dexter accidentally fires a laser at his mother - giving her super powers. In `Ultrajerk 2000', Dexter creates a robot that will clean his laboratory.
Techno Turtle / Surprise / Got Your Goat
Season 3, Episode 3 Unrated
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"Techno Turtle" When Dee Dee rescues a wounded turtle from a hawk's talons, Dexter helps rebuild the little shelled animal into a bionic powerhouse. Dee Dee and the turtle become friends until the day the turtle returns to the wild and beats up the hawk. "Surprise" It's Dexter's birthday and he's intent on sneaking a peak at his presents. In order to get around Mom, Dad and the vigilant Dee Dee, he makes himself invisible. "Got Your Goat" Dee Dee shows Dexter a picture of the Chupacabra only to have him realize that it's Charlie, one of his biological mutations/inventions that escaped. Dee Dee and Dexter fly to Puerto Rico to retrieve his "pet."
Dee Dee Be Deep / 911 / Down In The Dumps
Season 3, Episode 4 Unrated
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"Dee Dee Be Deep" Dee Dee wants to join the choir, but her bad singing is making it impossible for Dexter to work. Using one of the machines in his lab he plans to give her a melodic voice, but Dee Dee alters the setting and winds up as a baritone! "911" Dexter is watching his favorite TV show when all of a sudden it is interrupted by the Emergency Broadcast System alert. In order to get back to his favorite show, he sets out to rectify every emergency in the city. "Down in the Dumps" While Dexter is working in lab, Dee Dee tries to distract him with her teddy bear, Mr. Fuzz-ums. In anger, Dexter shoots Mr. Fuzz-ums out of the lab where he lands in a garbage truck. Dee Dee goes into shock and Dexter realizes that he'll have to retrieve the bear from the dump in order to revive her.
Unfortunate Cookies / Muffinking
Season 3, Episode 5 Unrated
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"Unfortunate Cookie" (11 Minutes) When Dexter and Dee Dee get stuck together by a Chinese Finger Puzzle, they track it to its maker in Chinatown, USA. The maker refuses to give the secret unless the two kids perform a series of tasks. "The Muffin King" (11 Minutes) Dad is just crazy about Mom's muffins. He's got to have them. Mom needs to go out and asks Dexter and Dee Dee to guard the muffins. Dad tries everything to get the muffins from dressing in drag to full frontal attack.
Picture Day / Now That's a Stretch / Dexter Detention
Season 3, Episode 6 Unrated
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"Picture Day" It's picture day at school and Dexter must face the truth: he is not photogenic. Using Dee Dee's Teen magazine as a guide for restructuring his physical appearance, Dexter becomes grotesquely handsome. Only things get a little hot under the lights, and Dexter's good looks melt away before the picture is snapped. "Now, That's a Stretch" With everything out of his rather limited reach, Dexter uses science to make himself extremely stretchy. He's having the time of his life until Dee Dee gets hold of him and uses him for everything from silly putty to bubble gum. "Dexter Detention" Dexter is sentenced to detention after school for "allowing" someone to cheat off his test. Wrongly accused, Dexter is sentenced to solitary confinement. Luckily, he masters a plan of escape only to end up in the State Penitentiary serving real hard time.
Don't Be A Baby / Dial M for Monkey: Peltra / G.I.R.L. Squad
Season 3, Episode 7 Unrated
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"Don't be a Baby" Being too young to watch an R-rated movie, Dexter tries to make Dee Dee and himself older than Mom and Dad. They end up stuck with infant versions of their parents. Running a house and a laboratory while trying to take care of your toddling parents is more than Dexter and Dee Dee can handle. "Peltra" (Monkey) When the evil Petra spots Monkey, she desires his fur to make into clothing. Peltra kidnaps Monkey and Agent Honeydew, preparing to carry out her terrible plan. At the last moment, Honeydew breaks free and splashes red paint onto Monkey ruining his pelt for Peltra's purposes. "G.I.R.L. Squad" After watching a McBark (the crime dog) school presentation, Dee Dee and her two friends decide to lick crime in their own neighborhood. They set out to watch everything and everyone, but in true Dee Dee fashion, the girls go a bit overboard and end up getting a "lickin'" from McBark himself.
Sports a Poppin' / Koos a la Goop a Goop / Project Dee Dee
Season 3, Episode 8 Unrated
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"Sports a Poppin'" Dad tries to teach Dexter a sport, like all the other fathers and sons. But Dexter is just horrible at every sport - from baseball to football, soccer to badminton, Dexter stinks! Dad finally gives up, unaware that Dexter becomes engaged in an athletic battle with a monster from his lab. "Koosalagoopagoop" When Koosalagoopagoop tells Dee Dee about his magical kingdom, Dee Dee forces him to take her there. After picnic time with the trollbetoots, Dee Dee and Koosie set off to his castle at Rainbow Mountain for the King's Ball. But when Dee Dee sees another King on the throne, she tries to replace the King with Koosie and all heck breaks loose. Koosie's glowing heart saves the day. "Project Dee Dee" Dee Dee is working on a science project for school, and Dexter says he's too busy to help her. However, after seeing the quaint, silly flying machine Dee Dee made, Dexter grabls her project and rebuilds it himself. The next day at school, Dexter's Dee Dee Project manages to launch the entire school into space.
Topped Off / Dee Dee's Tail / No Power Trip
Season 3, Episode 9 Unrated
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"Topped Off" After watching Mom and Dad awaken to coffee, Dexter and Dee Dee decide to try some on their own. Nothing happens until they try to go to sleep and can't. So, they bounce balls, play with dolls, turn wrenches, and fly around until morning. "Dee Dee's Tail" Dee Dee begs Dexter to turn her into a Pony Puff Princess Pony. Dexter, seeing this as an opportunity to study horses, complies. Pony Dee Dee's friends abuse their pony riding privileges. Dexter, Mee Mee, and Lee Lee chase after Dee Dee only to be confronted by the Pony Puff Princess Spirit Pony. "No Power Trip" Not listening to his trusty computer, Dexter blows out the main fuse and shuts down the lab. Afraid to go outside, Dexter decides to try some natural resources to regenerate the lab's power.
Sister Mom / The Laughing
Season 3, Episode 10 Unrated
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"Sister Mom" (11 Minutes) When Dexter has to have a "parent-principal" meeting at school, the boy genius is distraught. He's never been in trouble so how can he disappoint his parents now? Luckily he talks Dee Dee into changing her into Mom in his lab so she can go to the meeting in Mom's place. "The Laughing" (11 Minutes) When Dexter gets bitten by a set of false teeth belonging to an old clown, he slowly becomes infected with clown's syndrome (something like getting bitten by a werewolf). At night, Dexter transforms into a clown and terrorizes the town. Dee Dee takes mime lessons and is able to save her brother.
Dexter's Lab:A Story / Coupon for Craziness / Better Off Wet
Season 3, Episode 11 Unrated
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"Dexter's Lab: A Story" When Dexter takes in a lost Labrador Retriever, he decides to enable the dog to talk. This backfires when it turns out that the dog has very little of interest to say. "Coupon for Craziness" While at the supermarket, Dexter gets switched with his complete opposite, Dextor. Dexter thinks he's found his true family as Dextor's parents are scientists. Meanwhile, Dextor thoroughly enjoys Dexter's goofy family. "Better Off Wet" It's the first day of summer, and Dad's dark side comes out when he plays tricks on Dexter to get his nervous son to jump into the pool.
Critical Gas / Let's Save the World You Jerk! / Average Joe
Season 3, Episode 12 Unrated
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"Critical Gas" Dexter wolfs down a burrito and suddenly feels a growing pain inside. After having his computer analyze the pain, Dexter thinks he's going to explode. This being his last hour of life, Dexter tries to take care of a few items on his wish list. "Let's Save the World, You Jerk" When a hundred huge meteors are targeted towards Earth, Dexter must team up with his arch-jerk enemy Mandark to save the world. Since the two are incapable of working together, the earth seems doomed. Luckily, all the meteors burn up in the atmosphere. "Average Joe" When Dexter's IQ test results prove him to be only average, he thinks that there must be some mistake. But there's no mistake - Dexter shuts down his lab and tries to be a normal average kid.
Rushmore Rumble / A Boy and His Bug / You Vegetabelieve It!
Season 3, Episode 13 Unrated
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"Rushmore Rumble" Dexter and Mandark face off in a battle of Titans using the stone figures of Lincoln and Washington (respectively) from Mount Rushmore. When the two granite giants go off to have their own life, Dexter and Mandark stand facing each other. "A Boy and His Bug" Dexter inadvertently develops a new breed of termites that eats metal instead of wood. When they destroy the lab, Dexter builds a wooden containment box to hold them and finally outwits the little buggers. "You Vegetabelieve It" Dee Dee's plant is slowly dying so Dexter gives her a flask of plant growth hormone. When Dee Dee gives the plant too much, it grows too large for its pot and must be transplanted to the yard.