Season 4
200952 episodes
10
September 10, 2009
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.
Episode 3
Join the Johnny Scouts
September 17, 2009
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.
Episode 4
Johnny BC
September 17, 2009
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.
Episode 5
Runaway Johnny
September 24, 2009
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.
Episode 6
Johnny on the Spot
September 24, 2009
Johnny steals a portable black hole, which later creates an early apocalypse.
Episode 7
Dark Johnny
October 1, 2009
Johnny joins forces with Dark Vegan to get him back to his home planet.
Episode 8
No Homework for Johnny
October 1, 2009
Susan and Mary build Johnny a robot in order to help him do his homework, but the robot ends up stealing things for Johnny.
Episode 9
Papa Johnny
October 8, 2009
Susan and Mary switch Johnny and Hugh's brains after the two make a bet that involves taking on each other's lives.
Episode 10
The Johnnyminster Dog Show
October 8, 2009
Johnny and Dukey try to get in a dog show which only allows perfectly groomed and trained dogs.
Episode 11
Dukey Jekyll and Johnny Hyde
October 15, 2009
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.
Episode 12
Johnny's Trophy Case
October 15, 2009
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.
Episode 13
Johnny's Amazing Cookie Company
November 26, 2009
Susan and Mary make fortune cookies that come true, and Johnny sells them with the typical drastic results.
Episode 14
Johnny's Big Dumb Sisters
November 26, 2009
The twins' latest invention accidentally makes them dumb thanks to Johnny right before their scholarship interview.
Episode 15
My Johnny Guard
December 3, 2009
Johnny gets hired to stop Bling-bling from kissing Susan, but Johnny turns on the sisters once Bling-Bling bribes him.
Episode 16
Tom and Johnny
December 3, 2009
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.
Episode 17
The Quantum of Johnny
December 10, 2009
Johnny tries to get invited to a party to stop a villain. NOTE: Susan and Mary don't appear in this episode.
Episode 18
Johnny Get Yer Gum
December 10, 2009
Mr. Whacko invents a new helium gum that lifts kids into the sky, and Johnny must save them.
Episode 19
Old School Johnny
January 7, 2010
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.
Episode 20
Johnny Degrees Below Zero
January 7, 2010
Johnny creates a magnetic force field on the Earth which makes Porkbelly the new north pole.
Episode 21
Johnny Johnny
February 4, 2010
Johnny and Dukey get framed for stuff that Johnny and Dukey look alike robots (which Mr. Black and Mr. White made) do around Porkbelly.
Episode 22
Johnny Double Coupons
February 4, 2010
Johnny keeps attempting to ride down Suicide hill, but Susan and Mary keep redeeming Johnny's coupons.
Episode 24
The Destruction of Johnny X
February 18, 2010
Johnny and Dukey decide to remain in super hero mode permanently but find being a superhero is harder than they think.
Episode 25
iJohnny
February 25, 2010
The twins upgrade Johnny's new cell phone. Later the phone becomes too intelligent and begins hacking government space missiles.
Episode 26
Johnny vs. The Mummy
February 25, 2010
Johnny goes on a trip to the museum and brings the things to life, including a mummy.
Episode 27
Johnny Grow Your Own Monster
May 10, 2010
Johnny's mail order foam monster becomes a real monster once the twins swap the water with their bottle of "side effects".
Episode 28
Who's Johnny
May 17, 2010
When Sissy considers Johnny too gross to help her in a science project, he begs Susan and Mary to change his personality.
Episode 29
Princess Johnny
May 24, 2010
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.
Episode 30
99 Deeds of Johnny Test
July 5, 2010
After getting his 99th detention, Johnny learns he must perform 99 good deeds or he will be sent to military school.
Episode 31
Johnny's Amazing Race
July 12, 2010
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.
Episode 32
Johnny Test in 3D
July 19, 2010
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.
Episode 33
Guess Who's Coming to Johnny's for Dinner
July 26, 2010
Mr. Black moves in with the Tests after he embarrasses Mr. White at the dance contest auditions.
Episode 34
Johnny's New BFF
August 2, 2010
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.
Episode 35
Johnny vs. Bling Bling IV
August 9, 2010
Johnny once again has to protect Susan from Bling Bling Boy who is determined to have her as his valentine.
Episode 36
Johnny's Big Sister Smackdown
August 16, 2010
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.
Episode 37
Sunshine Malibu Johnny
August 23, 2010
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.
Episode 39
King Johnny
September 6, 2010
Johnny becomes obsessed with domination after Susan and Mary bring his chess pieces to life.
Episode 40
Johnny Re-Animated
September 13, 2010
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.
Episode 41
Johnny Cakes
September 20, 2010
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.
Episode 43
Sleepover at Johnny's
October 4, 2010
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.
Episode 44
Johnny's Got a Wart!
October 11, 2010
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.
Episode 45
Johnny's Royal Flush
October 18, 2010
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.
Episode 46
Johnny Test's Day Off
October 25, 2010
Johnny ditches school with a relentless truant officer in hot pursuit.
Episode 47
Johnny & Dark Vegan's Battle Brawl Mania
November 1, 2010
Dark Vegan once again tries to destroy Johnny, who is trying to cheer up lonely Repto-Slicer.
Episode 48
A Scholarship for Johnny
November 8, 2010
Hugh wants to train Johnny to be good at sports so that he could get a sports scholarship to college.
Episode 49
Johnny Boat Racing
November 15, 2010
Johnny, his friends, and his enemies all compete in a boat race against an arrogant rowing team.
Episode 50
Johnny Lock Down
November 22, 2010
Johnny is determined to get a flytrap plant from his sisters for his school's science fair.
Episode 51
Good Ol' Johnny Test
November 29, 2010
Johnny is in charge of the school play about recycling while Susan and Mary create a garbage-eating monster.
Episode 52
Johnny X Strikes Back Again
December 30, 2010
The general takes away the lab, and than builds agent cyborgs. They charge up Johnny X and their friends to stop them!
