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Johnny Test - Johnny's New 'Do (S1E10)

Johnny Test – Season 1 - Episode 10 – Johnny's New 'Do

Eager to meet a rollercoaster's height requirement, Johnny asks his twin sisters to make him taller. And they do — sort of.

Runtime (min)14
Air Date2021-07-16
GenresAnimation, Comedy, Kids, Action & Adventure, Sci-Fi & Fantasy
TV RatingTV-Y7
Network(s)Netflix

Storyline

Johnny Test is desperate to ride the Mega Extreme roller coaster at the local amusement park, but he falls short of the height requirement by just a few inches. Frustrated and determined, he turns to his genius twin sisters Susan and Mary for help. The girls agree to use their scientific inventions to make Johnny taller so he can finally experience the thrill ride he's been dreaming about.

Using one of their experimental devices, Susan and Mary manage to increase Johnny's height, but their solution comes with unexpected complications. The episode follows Johnny as he deals with the consequences of his artificially enhanced stature, learning that shortcuts don't always lead to the outcomes we hope for. The sisters must work to reverse their experiment while Johnny navigates the challenges his new height creates, all building toward a resolution that teaches him about patience and accepting himself as he is.

What kids learn

This episode offers children a meaningful lesson about patience and the importance of waiting for the right time. Johnny's eagerness to ride the roller coaster immediately, rather than waiting until he naturally grows tall enough, leads to unforeseen problems. Children can see through his experience that some goals require time and that trying to force or rush outcomes often creates more difficulties than simply being patient.

The story also explores themes of self-acceptance and being comfortable with who you are. Johnny's dissatisfaction with his current height drives the plot, but the complications that follow demonstrate that changing yourself just to meet an external requirement isn't always the best solution. Young viewers learn that physical characteristics like height are natural parts of growing up and that everyone develops at their own pace.

Additionally, the episode touches on problem-solving and taking responsibility for one's choices. When Johnny asks his sisters for help, he sets events in motion that he must then deal with, showing children that decisions have consequences and that quick fixes rarely solve problems in lasting ways.

Parents' top 5 questions

QuestionAnswer
Is the science experiment portrayed in a way that might encourage unsafe behavior?The height-altering device is clearly presented as fictional cartoon science with exaggerated, impossible results. The episode frames the experiment's consequences as problematic rather than desirable, reinforcing that such shortcuts cause trouble. The fantastical nature of the invention makes it clear this isn't something children could or should attempt to replicate in real life.
What's the main lesson Johnny learns by the end of the episode?Johnny learns that trying to artificially change himself to meet an arbitrary requirement creates more problems than it solves. The episode emphasizes patience and self-acceptance, showing that waiting to grow naturally is better than seeking quick fixes. He discovers that some experiences are worth waiting for and that being himself is more important than forcing changes to access immediate gratification.
How do Johnny's sisters handle the situation they create?Susan and Mary take responsibility for fixing the problem their invention causes. They work to reverse the effects of their experiment, demonstrating accountability for their actions. The sisters show problem-solving skills and scientific thinking as they address the complications, modeling how to take ownership of mistakes and work toward solutions rather than abandoning a problem they helped create.
Is there any scary or intense content related to the roller coaster?The roller coaster itself is portrayed as an exciting attraction rather than something frightening. The episode focuses more on Johnny's desire to ride it and the complications of his increased height than on any intense thrill-ride sequences. The cartoon style keeps everything light and comedic, so younger viewers sensitive to heights or fast rides shouldn't find the content distressing.
Does this episode address body image issues appropriately for young viewers?The episode handles Johnny's height concerns within an age-appropriate framework, showing that dissatisfaction with physical characteristics can lead to poor decisions. Rather than dwelling on body image anxieties, the story quickly moves to consequences and resolution, ultimately affirming that physical development happens naturally and shouldn't be rushed. The message supports self-acceptance without making body concerns the central emotional focus.

Writing

Directing

Season
Season #Episode #Episode Name
11
Tired of losing in the game “Melee Island,” Bling Bling transports Johnny Test and the rest of the crew to a real island to show off his combat skills.
12
Susan and Mary create an adorable robot baby brother that seems to have just one thing on its mind: mass destruction.
13
Susan and Mary perform a wee bit of brain surgery on Johnny to re-calibrate his feelings about eating vegetables.
14
Johnny and Dukey sneak into an Enormazon warehouse. Meanwhile, Susan and Mary suspect their household's digital assistant of something sinister.
15
After Johnny is silenced by the town librarian for making too much noise, his sisters and Dukey set out to give him his voice back.
16
A new monster-hunting mobile game is a hit with everyone in town... until the creatures cross over into the real world and threaten to take over.
17
To help Johnny avoid having to go to summer school, Susan, Mary and Dukey shrink themselves and enter his brain to boost his memory.
18
Johnny and Dukey try to help down-on-his-luck movie star Speed McCool while Susan and Mary strive to create the perfect microwave popcorn.
19
Johnny and Dukey challenge each other to spend one night in the newly created — and ultra-spooky — backyard forest.
110
Eager to meet a rollercoaster's height requirement, Johnny asks his twin sisters to make him taller. And they do — sort of.
111
In an effort to get Johnny excited for a family vacation, Susan and Mary decide to show him ancient Rome, up close and personal.
112
Things get weird fast when Johnny attempts to throw a modest music festival in his own backyard.
113
When Susan and Mary create a new face-swapping invention, Johnny and Dukey are more than happy to test it out.
114
Johnny and Dukey sell Susan and Mary's stuff at a yard sale, not knowing the so-called "junk" is actually a pile of very powerful weaponry.
115
After disrupting Susan, Mary and Dukey's spa day, Johnny finds himself stuck in an unremovable face mask and gets mistaken for a luchador.
116
Johnny's mom has scheduled a famous photographer to take a family portrait, but Susan and Mary's hair isn't in the mood to cooperate.
117
Johnny and Dukey, Susan and Mary, Bling Bling and many more set out to solve a booby-trapped corn maze in hopes of winning a sweet prize.
118
Mr. White and Mr. Black are given a time-sensitive mission, but there's a problem involving sheep, experiments, and — of course — Johnny Test.
119
Bored with life in his hometown, Johnny asks his inventor sisters to get him out of Porkbelly — a wish they're more than happy to grant.
120
With Christmas around the corner, the Test family tries to out-do their neighbors' irritatingly impressive holiday light display.
Season #Episode #Episode Name
21
When Johnny gets in trouble at school, he asks his sisters to develop a robot mom that looks just like the real thing to trick his teacher.
22
Bling Bling forces Johnny, Dukey, Susan, Mary and many others to return to Melee Island for another over-the-top battle royale.
23
Johnny sets out to prove a popular series of wizarding books is overrated and needlessly long by becoming a wizard in virtual reality.
24
Desperate to avoid embarrassment on the basketball court, Johnny uses his sisters' latest invention: the world's first fully functional good luck charm.
25
After suffering nightmares about the Big Bad Wolf, Johnny decides to face his fears in Susan and Mary’s dream chamber invention.
26
Ten-hut! Johnny’s nefarious baby-brother-bot escapes from military school to cause more chaos among the Test family.
27
After Bling Bling pleads for help with a genetically altered crab, Johnny and Dukey decide that even their biggest rival deserves a claw — er, a hand.
28
It's family game night in the Test household, and Johnny wants his parents and sisters to take the escape room trend to a whole new level.
29
After someone — or something — destroys a candy store, Mr. Black and Mr. White call on Johnny X to handle the fallout.
210
When Johnny gets locked out of his video game, Mary and Susan send him into Tiny'mon's virtual world in hopes of getting some answers.
211
After devouring a chapter of a yet-to-be-released Wizard Lad novel, Susan and Mary must know what happens next — and it’s up to Johnny to find out.
212
Johnny enlists Dukey to star in a series of hilarious online videos for Snoob-Tube in hopes of making some serious money,
213
Johnny loves it. Dad and Dukey do not. The members of the Test family have strong opinions about Susan and Mary’s new smart home upgrade.
214
Johnny embarks on a quest to complete his Squishy Wooshie collection by nabbing a Gnarly Narwhal from a stubborn vending machine at the car wash.
215
Johnny and Dukey each uncover a dinosaur fossil then set out to see whose dinosaur would win a fight by bringing them both back to life.
216
How can there be a Johnny X Con without the real Johnny even being invited? Fear not! That’s exactly what our intrepid hero intends to find out.
217
When Johnny’s beloved video game console catches on fire, he sets out to win a limited edition version at a restaurant filled with creepy animatronics.
218
Dad buys the car of his dreams and forbids Johnny from driving, touching or even looking at it. If only there were a way around these rules...
219
Johnny and Dukey get a surprise visit from their future selves, who have an important message about how to save Porkbelly.
220
When the action figures Johnny is obsessing over are quickly sold out, he decides to make his own using his sisters' 3D printer.

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