The twins' latest invention accidentally makes them dumb thanks to Johnny right before their scholarship interview.

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.

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.

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.

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.

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.

Johnny steals a portable black hole, which later creates an early apocalypse.

Johnny joins forces with Dark Vegan to get him back to his home planet.

Susan and Mary build Johnny a robot in order to help him do his homework, but the robot ends up stealing things for Johnny.

Susan and Mary switch Johnny and Hugh's brains after the two make a bet that involves taking on each other's lives.

Johnny and Dukey try to get in a dog show which only allows perfectly groomed and trained dogs.

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.

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.

Susan and Mary make fortune cookies that come true, and Johnny sells them with the typical drastic results.

Johnny gets hired to stop Bling-bling from kissing Susan, but Johnny turns on the sisters once Bling-Bling bribes him.

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.

Johnny tries to get invited to a party to stop a villain. NOTE: Susan and Mary don't appear in this episode.

Mr. Whacko invents a new helium gum that lifts kids into the sky, and Johnny must save them.

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.

Johnny creates a magnetic force field on the Earth which makes Porkbelly the new north pole.

Johnny and Dukey get framed for stuff that Johnny and Dukey look alike robots (which Mr. Black and Mr. White made) do around Porkbelly.

Johnny keeps attempting to ride down Suicide hill, but Susan and Mary keep redeeming Johnny's coupons.

Johnny gets X-Ray goggles.

Johnny and Dukey decide to remain in super hero mode permanently but find being a superhero is harder than they think.

The twins upgrade Johnny's new cell phone. Later the phone becomes too intelligent and begins hacking government space missiles.