Young Johnny is gung-ho and full of courage. Johnny's brainiac twin sisters, Susan and Mary, use Johnny as their guinea pig for their outrageous scientific experiments. If they can dream it up, Johnny will do it; as long as his genetically engineered super dog, Dukey, can come along.
Where to watch
-
Netflix
-
Hoopla
-
Amazon Video
-
Google Play Movies
-
Fandango At Home
see all options Availability data: JustWatch
- Seasons
- 6
- Episodes aired
- 234
- Latest aired
- S06E51
- Total runtime
- 1d 18h
Timeline when each season aired
- Season 1 September 2005 – July 2006 26 episodes
- Season 2 October 2006 – May 2007 26 episodes
- Season 3 August 2007 – February 2008 26 episodes
- the show was away for 1 year and 7 months
- Season 4 September 2009 – December 2010 52 episodes
- Season 5 June 2011 – August 2012 52 episodes
- Season 6 April 2013 – June 2014 52 episodes
-
S04E01 Johnny's New Baby Sisters
September 10 · 11min find the promo
Show synopsis
Susan and Mary purposely turn themselves into babies while the parents are out, and Johnny has to keep them safe from the irresponsible babysitter Gil; this interferes with a party he and Dukey had been planning.
-
S04E02 Porta Johnny
September 10 · 11min find the promo
Show synopsis
Johnny tricks his sisters into letting him have teleporting powers. Susan and Mary mess with the powers to get revenge. Later the twins accidentally get them caught in a middle of an art robbery.
-
S04E03 Join the Johnny Scouts
September 17 · 11min find the promo
Show synopsis
After Johnny lands his bike into a garbage truck, he becomes a Lady Bird Scout and tries to sell 1,000 boxes of cookies to get a new one. Little does he know, Sissy wants the bike as well, but for a better reason.
-
S04E04 Johnny BC
September 17 · 11min find the promo
Show synopsis
Johnny goes back in time in order to get a sloth bone for the twins, but when he returns he becomes a caveman, interfering with his grounding from selling Hugh's personal items.
-
S04E05 Runaway Johnny
September 24 · 11min find the promo
Show synopsis
Johnny and Dukey run away when Johnny's parents say he's old enough to do chores but not old enough to watch PG-13 movies.
-
S04E06 Johnny on the Spot
September 24 · 11min find the promo
Show synopsis
Johnny steals a portable black hole, which later creates an early apocalypse.
-
S04E07 Dark Johnny
October 1 · 11min find the promo
Show synopsis
Johnny joins forces with Dark Vegan to get him back to his home planet.
-
S04E08 No Homework for Johnny
October 1 · 11min find the promo
Show synopsis
Susan and Mary build Johnny a robot in order to help him do his homework, but the robot ends up stealing things for Johnny.
-
S04E09 Papa Johnny
October 8 · 11min find the promo
Show synopsis
Susan and Mary switch Johnny and Hugh's brains after the two make a bet that involves taking on each other's lives.
-
S04E10 The Johnnyminster Dog Show
October 8 · 11min find the promo
Show synopsis
Johnny and Dukey try to get in a dog show which only allows perfectly groomed and trained dogs.
-
S04E11 Dukey Jekyll and Johnny Hyde
October 15 · 11min find the promo
Show synopsis
Dukey drinks a liquid which makes him turn into a monster. To make matters worse, a dog catcher (and later Mr. Black and Mr. White) are after him.
-
S04E12 Johnny's Trophy Case
October 15 · 11min find the promo
Show synopsis
Johnny wants to get a trophy to put in his trophy case. Susan and Mary get obsessed with winning, so the three of them enter The Pork Belly River Jumpoff to win 1 million dollars and a trophy.
-
S04E13 Johnny's Amazing Cookie Company
November 26 · 11min find the promo
Show synopsis
Susan and Mary make fortune cookies that come true, and Johnny sells them with the typical drastic results.
-
S04E14 Johnny's Big Dumb Sisters
November 26 · 11min find the promo
Show synopsis
The twins' latest invention accidentally makes them dumb thanks to Johnny right before their scholarship interview.
-
S04E15 My Johnny Guard
December 3 · 11min find the promo
Show synopsis
Johnny gets hired to stop Bling-bling from kissing Susan, but Johnny turns on the sisters once Bling-Bling bribes him.
-
S04E16 Tom and Johnny
December 3 · 11min find the promo
Show synopsis
Johnny turns into a mouse for Susan and Mary, but when Mr. Mittens comes, things get chaotic. This episode is a parody of Tom and Jerry.
-
S04E17 The Quantum of Johnny
December 10 · 11min find the promo
Show synopsis
Johnny tries to get invited to a party to stop a villain. NOTE: Susan and Mary don't appear in this episode.
-
S04E18 Johnny Get Yer Gum
December 10 · 11min find the promo
Show synopsis
Mr. Whacko invents a new helium gum that lifts kids into the sky, and Johnny must save them.
-
S04E19 Old School Johnny
January 7 · 11min find the promo
Show synopsis
Johnny travels to 1845 when school was easier, but he gets stuck there because the power supplier to the Turbo Time Tea house hasn't been invented yet. The sisters and Johnny try to find outdated technology to power the tea house.
-
S04E20 Johnny Degrees Below Zero
January 7 · 11min find the promo
Show synopsis
Johnny creates a magnetic force field on the Earth which makes Porkbelly the new north pole.
-
S04E21 Johnny Johnny
February 4 · 11min find the promo
Show synopsis
Johnny and Dukey get framed for stuff that Johnny and Dukey look alike robots (which Mr. Black and Mr. White made) do around Porkbelly.
-
S04E22 Johnny Double Coupons
February 4 · 11min find the promo
Show synopsis
Johnny keeps attempting to ride down Suicide hill, but Susan and Mary keep redeeming Johnny's coupons.
-
-
S04E24 The Destruction of Johnny X
February 18 · 11min find the promo
Show synopsis
Johnny and Dukey decide to remain in super hero mode permanently but find being a superhero is harder than they think.
-
S04E25 iJohnny
February 25 · 11min find the promo
Show synopsis
The twins upgrade Johnny's new cell phone. Later the phone becomes too intelligent and begins hacking government space missiles.
-
S04E26 Johnny vs. The Mummy
February 25 · 11min find the promo
Show synopsis
Johnny goes on a trip to the museum and brings the things to life, including a mummy.
-
S04E27 Johnny Grow Your Own Monster
May 10 · 11min find the promo
Show synopsis
Johnny's mail order foam monster becomes a real monster once the twins swap the water with their bottle of "side effects".
-
S04E28 Who's Johnny
May 17 · 11min find the promo
Show synopsis
When Sissy considers Johnny too gross to help her in a science project, he begs Susan and Mary to change his personality.
-
S04E29 Princess Johnny
May 24 · 11min find the promo
Show synopsis
Johnny poses as a princess in order to prevent a war. Meanwhile, Susan and Mary decide that they would like to act like normal girls.
-
S04E30 99 Deeds of Johnny Test
July 5 · 11min find the promo
Show synopsis
After getting his 99th detention, Johnny learns he must perform 99 good deeds or he will be sent to military school.
-
S04E31 Johnny's Amazing Race
July 12 · 11min find the promo
Show synopsis
Johnny and Dukey challenge his sisters, their friends, and their enemies to a survival challenge in which the winning team gets hundreds of dollars in gift certificates.
-
S04E32 Johnny Test in 3D
July 19 · 11min find the promo
Show synopsis
While the tests go on vacation, Johnny and Dukey try to get back into their hotel room and avoid the hotel manager that doesn't allow pets.
-
S04E33 Guess Who's Coming to Johnny's for Dinner
July 26 · 11min find the promo
Show synopsis
Mr. Black moves in with the Tests after he embarrasses Mr. White at the dance contest auditions.
-
S04E34 Johnny's New BFF
August 2 · 11min find the promo
Show synopsis
Johnny's parents keep setting Johnny up with new friends. When those don't work out, Johnny reveals Dukey's intelligence. Later, Dukey spends more time helping Johnny's parents instead of playing with Johnny.
-
S04E35 Johnny vs. Bling Bling IV
August 9 · 11min find the promo
Show synopsis
Johnny once again has to protect Susan from Bling Bling Boy who is determined to have her as his valentine.
-
S04E36 Johnny's Big Sister Smackdown
August 16 · 11min find the promo
Show synopsis
Susan and Mary both want Gil to go on a date with them, so they put up a wrestling match using rough guts (Susan uses Johnny's while Mary uses a lion's), but it leads to destructive results.
-
S04E37 Sunshine Malibu Johnny
August 23 · 11min find the promo
Show synopsis
Johnny goes to the beach to surf, but there are no waves, so Susan and Mary build a wave making machine and special surfboard for him.
-
S04E38 Johnnyicle
August 30 · 11min find the promo
Show synopsis
Johnny and Dukey try to help Brain Freezer get a girlfriend.
-
S04E39 King Johnny
September 6 · 11min find the promo
Show synopsis
Johnny becomes obsessed with domination after Susan and Mary bring his chess pieces to life.
-
S04E40 Johnny Re-Animated
September 13 · 11min find the promo
Show synopsis
Johnny uses one of his sisters' inventions to bring two cartoon characters to the real world in order to scare Sissy out of the house, but the characters mistake Porkbelly for a zombie world and try to destroy it.
-
S04E41 Johnny Cakes
September 20 · 11min find the promo
Show synopsis
It's Lila's birthday and the family spends the morning to make her birthday a success. Johnny struggles to make her breakfast, Hugh tries to figure out a good but inexpensive gift for her, and the twins keep trap Lila in her bedroom until Hugh and Johnny are ready.
-
S04E42 Johnny Tube
September 27 · 11min find the promo
Show synopsis
Johnny wants to become a internet sensation.
-
S04E43 Sleepover at Johnny's
October 4 · 11min find the promo
Show synopsis
Johnny is dragged into Susan and Mary's plan to get Gil to be in a sleep-over, but Bling-Bling Boy and Dark Vegan's daughter Jillian become involved as well, with the usual chaos ensuing.
-
S04E44 Johnny's Got a Wart!
October 11 · 11min find the promo
Show synopsis
Johnny gets a wart, and when his sisters try to get rid of it, it gives the wart intelligence and seems to make Johnny's life better, but he tries to take over his body as he gets more powerful.
-
S04E45 Johnny's Royal Flush
October 18 · 11min find the promo
Show synopsis
When Susan and Mary turns Johnny into a fish as part of one of their experiments, Hugh flushes him down the toilet by mistake where he ends up in the sewer, and he has to swim for his life when he runs into an alligator.
-
S04E46 Johnny Test's Day Off
October 25 · 11min find the promo
Show synopsis
Johnny ditches school with a relentless truant officer in hot pursuit.
-
S04E47 Johnny & Dark Vegan's Battle Brawl Mania
November 1 · 11min find the promo
Show synopsis
Dark Vegan once again tries to destroy Johnny, who is trying to cheer up lonely Repto-Slicer.
-
S04E48 A Scholarship for Johnny
November 8 · 11min find the promo
Show synopsis
Hugh wants to train Johnny to be good at sports so that he could get a sports scholarship to college.
-
S04E49 Johnny Boat Racing
November 15 · 11min find the promo
Show synopsis
Johnny, his friends, and his enemies all compete in a boat race against an arrogant rowing team.
-
S04E50 Johnny Lock Down
November 22 · 11min find the promo
Show synopsis
Johnny is determined to get a flytrap plant from his sisters for his school's science fair.
-
S04E51 Good Ol' Johnny Test
November 29 · 11min find the promo
Show synopsis
Johnny is in charge of the school play about recycling while Susan and Mary create a garbage-eating monster.
-
S04E52 Johnny X Strikes Back Again
December 30 · 11min find the promo
Show synopsis
The general takes away the lab, and than builds agent cyborgs. They charge up Johnny X and their friends to stop them!