"Hey, Ferb! I know what we're gonna do today!"

Every day during their summer vacation, Phineas Flynn and Ferb Fletcher have big ideas and go through with them. Some of the plans are used as a way of helping someone in need, while others are just to help them have the best possible summer ever, as described in "Rollercoaster".

Season 1 Edit

Episode Image Big Idea Notes
"Rollercoaster" Flying rollercoaster They build a backyard roller coaster.They also train monkeys to juggle (mentioned, happened before roller coaster) The rollercoaster goes all over town.
"Lawn Gnome Beach Party of Terror" LetsGetThisBeachPartyStarted They build a beach in their backyard and do surfing contests, limbo contests, sand castle building contests, etc. This is one of the most impossible plans, since the houses behind Phineas and Ferb disappear.
"Flop Starz" GitcheeGitcheeGoo They become one-hit wonders and make a band called Phineas and the Ferb-Tones to make "Gitchee Gitchee Goo" The boys don't know their mom used to be a one-hit wonder.
"The Fast and the Phineas" 42 lands on the road They enter a race with a life-size remote control car (their mom's modified car). The boys race in the Swamp Oil 500.
"Lights, Candace, Action!" Reassuring Candace about the rubber snakes They become famous movie directors and help Candace make a movie. The boys have an incredible number of hits on their homemade-video website and are hired as the directors of a big budget movie starring Candace. This is also one of the few episodes without a song.
"Raging Bully" 200px Phineas fights Buford after accidentally dropping ice cream on him and have thumb wrestling fights. The boys build an arena to thumb wrestle in the Googleplex Mall parking lot.
"Candace Loses Her Head" Candace and her monument They carve Candace's face into Mount Rushmore for a birthday present. Their work is intended as a birthday present for Candace.
"I, Brobot" 200px They build a second-generation robot-building device to create the Brobots, Phinedroids and Ferbots. Realizing there are too many plans for the two of them to carry out, the boys enlist the help of their newly-created robots.
A total of six plans are shown completed during this episode, with two others designed but not (explicitly) built.
"Run Away Runway" 200px They become fashion designers and create their own style of clothes. The Summer All The Time Collection rocks the fashion world.
"The Magnificent Few" Ride 'Em Cowboy They go on a cattle drive and around Danville. Phineas and Ferb become cowboys and drive a herd of cattle through downtown Danville.
"S'Winter" Snowboard Champions They use a snow-cone machine to create a new season, S'Winter, summer and winter mixed together. Some people call it Wummer.
"Jerk De Soleil" Jds They set up their own circus. They erect a big tent in their backyard after the local performance of Cirque de Lune was canceled.
"Are You My Mummy?" 200px They find a mummy (Candace, with stale bubble gum and toilet paper). After seeing the feature at an Egyptian-themed movie theater, the boys search the theater basement for a real mummy.But the mummy exhibit is fake.
"Ready for the Bettys" 200px They become secret agents and save Candace and the Bettys. Don't actually build anything, but stumble on Perry's secret lair and take on his secret mission. Phineas thinks Ferb put the whole thing together.
"I Scream, You Scream" Well, this can't be right They build the world's biggest ice cream maker for Isabella after her tonsils were removed. They try to create an ice cream machine but end up making Doofenshmirtz's space-laser-inator instead. Ferb takes the laser plans by mistake because he is distracted by Vanessa.
"Toy to the World" Perry Inaction Figure They remodel a toy factory to produce a toy so stupidly simple, so basically bland, so idiotically uncomplicated that it can do absolutely anything. The toy is modeled on Perry the Platypus.
"Get That Bigfoot Outa My Face!" GetThatBigfoot They scare the group with a fake Bigfoot and telling other stories. Candace and their grandparents get the last laugh.
"It's a Mud, Mud, Mud, Mud World" The candace crusher They turn the family car into a monster truck and make a derby. They help Candace learn to parallel park by entering her in a monster truck rally.
"Mom's Birthday" Happy Birthday, Mom! They throw the best birthday party ever for their Mom. Highlights: A breakfast bar, a giant birthday card, a video presentation, and a satellite uplink to Dad, who's out of town.
"Journey to the Center of Candace" Sub They build a shrinking submarine and go inside Candace. They want to help Isabella get her sash back from Pinky's stomach.
"It's About Time!" Needstobepluggedin They fix the museum's time machine and go to the time of the dinosaurs. The boys go back to prehistoric time and need to be rescued by Isabella and the Fireside Girls afterward.
"Dude, We're Getting the Band Back Together" 200px They reunite the band Love Händel after their dad forgets their anniversery. They help recreate the most romantic moment in their parents' relationship for their anniversary.
"Tree to Get Ready" 200px They fix up their and Candace's old treehouses and have a treehouse fight. The treehouse fight controls are based on the ones from a wrestling video game the Candace and Stacy play.
"The Ballad of Badbeard" 200px They make a pirate ship out of Grandpa Clyde's dingy. They use it to find Badbeard's treasure, fake beards.
"Greece Lightning" 200px They have a Chariot race through Danville with Phineas, Ferb, Isabella and the Fireside Girls, Buford, Baljeet, and Candace (who wins). There are no rules for the chariot race from the Flynn-Fletcher House to the museum.
"Leave the Busting to Us" PF ferris wheel
PF waterslide
They build a Ferris Wheel and a backyard water ride. Candace is secretly filming them for the reality show Bust 'Em.
"Crack That Whip" 200px They build a roller-derby rink. Roller derby queen Grandma Betty Jo wants a rematch with an old rival: Jeremy's grandmother.
"The Best Lazy Day Ever" Boys relaxing They do nothing for a whole day to try it out. The boys initially intend to build a train, but decide to relax instead. Though Candace is supposed to have a good day of her own, she can't because she has been used to trying to bust them.
"Boyfriend From 27,000 B.C." Boys with Conk They find a real caveman and teach him. The caveman follows Candace who is bringing a sandwich platter to a costume party. She mistakes him for Jeremy in a costume.
"Voyage to the Bottom of Buford" Submarine They help Buford find his goldfish Biff, who is lost at sea. Phineas uses a submarine to find Biff in Danville harbor.
"A Hard Day's Knight" Tm In England, the boys hold a renaissance fair. Candace starts out as the damsel in distress, but ends up in more distress as the Black Knight.
"Traffic Cam Caper" I'm just borrowing this They build an escalator to the Moon (mentioned) and chase a giant robot to recover Candace's evidence. It takes place at night and Candace is trying to use the traffic camera footage to bust them.
"Bowl-R-Ama Drama" Boys napping They build a giant piloted bowling ball and make the world's biggest pinball game. They use a giant bowling ball to break world records.
"Got Game?" 200px They create a stadium for the F Games. The Boys vs. Girls life-size Foozball, which takes place in the F Games Stadium.
"Comet Kermillian" Kermillians Comet They carve their faces into the passing-by Kermillian's Comet. They build an observatory to do it.
"Put That Putter Away" Minigolf They build a miniature golf course with Stacy. Candace is sick, so she relies on Stacy to bust the boys. Stacy gets distracted and ends up playing with the boys.
"Does This Duckbill Make Me Look Fat?" Candace the Platypus They build a real teleporter after seeing a movie. When Candace and Perry accidentally enter it at the same time, their minds switch.
"The Flying Fishmonger" 200px They help their Grandpa jump a gorge with his motorcycle, the Holy Mackerel. The Mackerel was previously converted into a lamp!
"One Good Scare Ought to Do It!" Mariachi tree
They build a haunted house to scare the hiccups out of Isabella. Before they find out about Isabella's hiccups, Phineas and Ferb create a Mariachi tree.
"The Monster of Phineas-n-Ferbenstein" Platypus monster Past Phineas and Ferb enter a monster contest by creating a giant platypus monster. Phineas and Ferb's ancestors create a giant platypus monster.
"Oil on Candace" Helicopter paint roller They paint the "Unpainted Desert" with Django to make a picture Django made on a piece of paper. They do this for Django so he can make his father proud. In the end, the painting is washed out, but Django's father is still happy with the small painting Django did for him.
"Out of Toon" 200px They make a cartoon about themselves and their friends as superheroes, using the Phineas & Ferb Studios. They are inspired by Pinhead Pierre, who asks, "If you could have any super power, what would it be?"
"Hail Doofania!" 200px They create a machine that will generate a rainbow after Isabella points out she had never seen one.(she was really meaning she had never seen a unicorn) The plan came about because Phineas thought Isabella had never seen a rainbow in real life.
"Out to Launch" 200px They build a rocket to visit the stars their dad bought them on the Internet.

Building a rocket is featured in the Title Sequence Lyric.

Season 2 Edit

Episode Image Big Idea Notes
"Phineas and Ferb Get Busted" 200px They build "The Flying Car of the Future -- Today!" They are also sent to Smile Away Reform School . While at the "school", they build a bed that is like a Ferris Wheel and have a corn dog stand toward the end.
  • In reality the boys never have a plan at all. Almost the entire episode is a dream (of a dream).
"Unfair Science Fair" 200px They help Baljeet get a good grade by building a portal to Mars to win a Science Fair. It is shown that Major Monogram wears a wig.
"Unfair Science Fair Redux (Another Story)" 200px They try to rescue Candace who is trapped in Mars. Ferb is able to speak Martian.
"The Lake Nose Monster" Boys with Lake Nose Monster They build a boat to find proof of the existence of Nosey, the Lake Nose Monster. Later in the episode the boys try to keep Nosey's existence a secret. This episode was the 2nd "Spot The Diff" never before seen episode. (From March 2009)
"Interview With a Platypus" Animal translator They build an animal translator to help all the Danville animals with their complaints, but fail to hear what Perry says (look at notes). The plan was originally for Perry.
"Tip of the Day" Phineas and his Aglet Awareness Ribbon They increase public awareness of the aglet, which is so unknown that this wiki says aglet is spelled incorrectly. This is the first time Phineas, Ferb, Isabella, Baljeet and Buford perform on stage together, but they don't remember.
"Attack of the 50 Foot Sister!" 200px They help Baljeet win the biggest-watermelon contest at the fair with a growth elixir. Baljeet asked Phineas and Ferb to help him because they helped him with the portal to Mars.
"Backyard Aquarium" Backyard aquarium They put on a backyard aquarium water show with many different sea animals. The show was put on for Goldie, Phineas and Ferb's new pet.
"Day of the Living Gelatin" LivingGelatin They create a giant gelatin mold in Isabella's pool. They later try to defeat it due to the mold becoming an evil monster.
"Elementary, My Dear Stacy" 200px They make a water slide around Big Ben and the London Eye. This is Phineas and Ferb's second water slide.
"Don't Even Blink" 200px They make a fun carnival ride that spins you around. Phineas and Ferb make it for the purpose of finding out where their creations disappear to.
"Chez Platypus" Chez Platypus They build a trendy exclusive restaurant named "Chez Platypus", which fails to succeed for the new "Badger Restaurants". Their idea was inspired by a French restaurant Phineas and Ferb found disappointing.
"Perry Lays an Egg" PerryContraption They find an egg they think is Perry's and build a "Platypus-terior" in order to nurture it, but the machine is later replaced by Candace. Before they found the egg their plan was to make it the sunniest day possible which didn't change anything.
"Gaming The System" 200px They recreate a video game named "Jump and Duck" to be able to go in the video game. This is the first time Phineas and Ferb are severely injured, even to the point of death.
"The Chronicles of Meap" 200px
They fix Meap's ship in order for him to go back home, after it crashed on earth, and defeat Mitch. Before meeting Meap they were playing baseball with a gadget they invented that can control the ball.
"Thaddeus and Thor" PnF fort They build a backyard fort to see who's inventions are better. The idea of a fort was bought up Linda in the Original Pitch. It also looks like Big Ben from Elementary, My Dear Stacy with the water slide. This is the first project that Candace made the boys do to compete with Thaddeus and Thor.
"De Plane! De Plane!" 200px They Build a huge airplane made of paper mache called the Paper Pelican. Later on, When the Paper Pelican descended into the lake, it began to dissolve in the water because it is after all made of paper mache. It was made to beat the Spruce Goose.
"Let's Take a Quiz" LetsTakeAQuiz The boys create a game show. Candace and Buford are the contestants in the show.
"At the Car Wash" Phin-tastic Ferb-ulous Car Wash The boys help the Fireside Girls raise money to save the Star-nosed mole by building a car wash. Jeremy invites Candace for a ride through the car wash in his mom's car.
"Oh, There You Are, Perry" Singing for Perry Perry gets relocated to a new nemesis and a new family, so Phineas and Ferb sing a song to bring him home. Perry was reassigned his original family and nemesis at the end of the day. This is also the first time they worry about Perry when he runs off.
"Swiss Family Phineas" 200px The family and Isabella get stranded on an island, so they build a Swiss style treehouse. Candace needs to get home in time for Jeremy's party.
"Hide and Seek" Candance discovers the shrinking device The boys shrink themselves, their friends, and their new friend, Irving down to microscophic size to play an indoor game of hide-and-seek. Irving is Phineas and Ferb's biggest fan. He carries a scrapbook of their big ideas with him everywhere.
"That Sinking Feeling" 200px Phineas and Ferb help Baljeet impress his childhood friend from India, Mishti with a romantic cruise. Mishti is one one of Baljeet's friends from India.
"The Baljeatles" 200px Phineas and Ferb help Baljeet to rock out for Summer Rocks Camp. Phineas and Ferb and Buford are a part of the Baljeatles
"Vanessassary Roughness" 200px Ferb catches some pizzazium for Vanessa, but Buford, Baljeet, Perry, Stacy, and Candace are after it too. Phineas relaxes in a massage chair. Ferb helps Vanessa get chemical for her dad to prove herself. This is the second episode where Phineas justs sits around. (The Best Lazy Day Ever)
"No More Bunny Business" X-Ray Glasses
Candace and Dennis
Phineas and Ferb make X-Ray glasses. Candace finds a lost rabbit and names it Mr. Cutie-Patootie.
"Spa Day" SpaPrepare2 Phineas and Ferb create a spa.\ for Candace and Stacy. Candace and Stacy also build a house with Jeremy before they go to Phineas and Ferb's spa.
"Phineas and Ferb's Quantum Boogaloo" 200px Phineas and Ferb use the time machine used in It's About Time to go to the future to find a tool that hasn't been made yet. Phineas and Ferb run into the future Candace and her kids, which are Phineas and Ferb's niece and nephews. The future Candace takes the time machine to bust Phineas and Ferb for building the roller coaster. Isabella marries one of the boys.
"Musical Cliptastic Countdown" 200px Major Monogram and Dr. Doofenshmirtz host this episode to countdown all the favorite Phineas and Ferb songs of Season 1. This is the first time a new project is seen, since the boys appear for some seconds asking where Perry is.
"Bubble Boys" KidsGetInBubble Create a giant bubble that they can travel through town in. This episode shows that Buford has a soft spot.
"Isabella and the Temple of Sap" GirlsInFrontOfTemple Isabella and the Fireside Girls get sap from a tree to help Phineas and Ferb make the bubble. Ginger admits her liking of Baljeet. This happened during Bubble Boys.
"Cheer Up Candace" PnFMixNMingler Phineas and Ferb help cheer Candace up after Jeremy cancels a date. In the end, Jeremy says he broke the date to earn money for a surprise date.
"Fireside Girl Jamboree" FinalPackageDelivery Phineas and Ferb make Candace a Fireside Girl. Candace only did it to go to the Fireside Girl Jamboree to go to a sold out concert. She realy didn't need to be a Fireside Girl because Isabella could bring guests. In order to earn Candace's 'Delivering cupcakes patch' the boys build their second Roller coaster. (Roller coaster)
"The Bully Code" Baljeet saves Buford The boys build a giant contraption that puts the life of Baljeet in great peril as soon as he stands on the X, so that Buford will save his life. They do this because Baljeet saved Buford's life from chocking on his windmill dog, so according to the bully code Buford becomes Baljeet's slave. Baljeet hated this, so of course, he turned to Phineas and Ferb. Linda sees the boys' contraption in the end, but since it was abandoned thinks it's only public art.
"Finding Mary McGuffin" 200px Phineas and Ferb help Candace to retrieve her doll, which was accidentally sold off to Doofenshmirtz, then gives it to Vanessa. Vanessa wants it too. The doll was discontinued.
"Picture This" Matter Transporter in action Phineas and Ferb create a transporter after Ferb leaves a skateboard back in England. They also helped their friends find lost items.
"Nerdy Dancin'" NerdyDancin - Ferb Backstage LADTWS Phineas and Ferb "teach" Jeremy how to dance using a metal exo-skeleton. Jeremy and Candace are entered in "Let's All Dance Until We're Sick."
"What Do It Do?" WhatIsThis Phineas and Ferb figure out what an invention does using reverse-engineering. It is Doofenshmirtz's anti-romance invention. It landed in Phineas and Ferb's front yard.
"Atlantis" 200px Phineas and Ferb and their friends go to the beach and find the lost city of Atlantis. Irving is included in the adventure because he went into Phineas and Ferb's car while their mom got gas.
"Phineas and Ferb Christmas Vacation!" 200px

Phineas and Ferb thank Santa by decorating Danville and making a rest stop for him. After the effects of Doofenshmirtz's Naughty-inator, Phineas and Ferb release a song to get the attention of Santa Claus.

Then they save Christmas for the Danville area (which is a typical thing to do in a Christmas special).
"Just Passing Through" JustPassingThrough 2 Linda looses her guitar pick. So Phineas and Ferb make an orb that goes through anything and then use it to find their Mom's guitar pick. This invention saves Phineas and Ferb's life, by allowing a steamroller to safely pass through them.
"Candace's Big Day" Wedding day ice sculpture Phineas and Ferb help throw a wedding, for Aunt Tiana and Uncle Bob. The ice sculpture they make, is destroyed by Doofenshmirtz Junk food-inator because the liquid is warm and so the ice melts.
"I Was a Middle Aged Robot" Phineas and Ferb in a hot air balloon Candace and Lawrence compete in a competition, so Phineas and Ferb and the Fireside Girls make a hot air balloon to cheer on Candace and Lawrence. The balloon is run by the energy exercise equipment creates, so like Doofenshmirtz (sometimes) Phineas and Ferb appreciate the environment. The balloon also includes a tube-like "360-Fun Bounce" Lawrence and Linda sees the balloon, but apparently don't care or are not aware it was built by the boys.
"Suddenly Suzy" PF replica of Niagara Falls Phineas and Ferb build a replica of Niagara Falls so they can ride a barrel over it and Phineas and Ferb try to bust themselves. They get the idea while under the broken sprinkler and Linda mentions that it looks "like Niagra Falls".
"Undercover Carl" PFandFriendsintheairwithnogravity Phineas and Ferb build an Anti-Gravity Fun Launcher but Carl accidentally intercepts their plans and assumes they are working for Dr. Doofenshmirtz, so he is sent undercover to figure out what they are doing and Carl helps Phineas and Ferb build the Anti-Gravity Fun Launcher and use the Anti-Gravity Fun Launcher. This is the first episode where Carl plays a lead role, and he comes in direct contact with the boys and their friends for the first time.
"Hip Hip Parade" 200px Phineas and Ferb decide to help build floats for all the neighborhood kids in the yearly "Tri-State Area Unification Day" parade. Candace was out with Linda all day, and had promised not to obsess about the boys for the day, but seeing the parade go by made the temptation too irresistable.
"Invasion of the Ferb Snatchers" Ferbsnatchershideousballofgoo After watching a sci-fi movie marathon, Candace becomes convinced that Ferb is an alien. In the end, of course Ferb is not an alien, and there are logical explanations for all of her proof. For example, Candace thought she saw Ferb's head floating in liquid in a jar, but the jar only contained the liquid and Ferb was standing behind it; and when Candace thought she saw Ferb's head ripped off, but she had mistaken him for a cord in a tent.
"Ain't No Kiddie Ride" 200px Phineas and Ferb trick out kiddie rides at a store. Candace ends up flying around town uncontrollably, and the boys and their friends have to save her. Ferb literally saved her life while she was plummeting off a cliff by doing the impossible - slingshotting a quarter right into the slot on the rocket.
"Not Phineas and Ferb" Holographic Eiffel Tower Phineas and Ferb do nothing, but Baljeet and Buford pose as Phineas and Ferb beside a giant hologram of the boys’ Eiffel Tower construction. For Irving’s brother Albert because he doesn’t believe that Phineas and Ferb are anything special.
"Phineas and Ferb-Busters!" Spinningtops Phineas and Ferb create an unlimited power supply to propel a group of cyclone-like vehicles known as “Spinning Tops of Doom.” Candace could've easily busted the boys in this episode, but because she was waiting for a signal from Stacy and Jenny in the backyard (which never came; their headsets were destroyed), the tops disappeared. At the beginning they show an amusement park type thing containing their third Roller coaster. (Roller Coaster) (Fireside Girl's Jamboree)
"Lizard Whisperer" Ferb's inspirational speech The boys build a giant ice cream machine to last them the summer. This invention was built at the start of the episode, and quickly destroyed when Steve the chamelion grows to a gigantic size. Ferb gives a really long speech.
"Robot Rodeo" Backyard rodeo
It's because of the humidity
The boys host a rodeo with robotic bulls. Isabella's hair gets frizzy.
"The Beak" The Beak A super villain arrives in Danville to challenge Phineas and Ferb after the boys are mistaken as a superhero (while wearing an indestructible suit they designed to safely conquer their newly built extreme skate-track) known as The Beak. With the super villain wreaking havoc, it’s up to Phineas and Ferb to thwart him. They initially built a super skate ramp of doom. After realizing the dangers of the ramp, they build the super suit to protect themselves.
"She's the Mayor" Pioneer Village Phineas and Ferb build an authentic log cabin and a pioneer village using only their dad's antique collection of pioneer tools to do it. This is fourth time that Candace busts her brothers, though the giant time lapse that Doofenshmirtz caused by his Accelerate-inator made it never happen.
"The Lemonade Stand" Lemonade2 After Candace asking them if they could think of something normal to do for a change, they build a very typical lemonade stand and begin to offer franchise opportunities In order for Phineas and Ferb to make the lemonade, they made a giant machine that looked similar to a robot, so it could produce the lemonade. It later gets destroyed by Doofenshirtz's Paper-Cut Inator.
"Phineas and Ferb Hawaiian Vacation" Phineas and Ferb with A-Primes Phineas and Ferb buy Aqua Primates and use their growth elixir to make them grow to be human sized. The growth elixir was used on Candace in "Attack of the 50 Foot Sister"
"The Wizard of Odd" Cleaning the House Phineas and Ferb clean the house by spinning it. They later build a giant unicycle. During the dream, they build several alternate routes for Candace, but she refuses to go on any of them.

Specials Edit

Episode Image Big Idea Notes
"Camp Rock 2: The Final Jam" Its On Phineas and Ferb directed the Summer version of the music video "It's On" from "Camp Rock 2: The Final Jam" kicking off Disney Channel's Summer Vacation. The first time crossover meet Cast of Camp Rock 2: The Final Jam.

Background InformationEdit

  • The plans the boys come up with can be described as impossible because they are accomplished in a very short amount of time (less than a morning {they use the invention in the afternoon, most likely}) and involve technology that has yet to exist in the real world: teleportation, mind-switching, time traveling... Phineas and Ferb do not think of their plans as impossible, just fun and great. When Isabella asks Phineas if building a time machine is "kind of impossible", he replies, "That's a possibility". ("It's About Time!")
  • The phrase "Big Ideas" references the advertising campaign that Disney Channel ran prior to the launch of the series in February 2008. For Phineas, it was "he thinks big". For Ferb, it was "he thinks how".
  • Despite Phineas saying that he likes to "keep moving forward", he actully has repeated his big ideas. Examples are the waterslide in "Leave the Busting to Us!" and "Elementary, My Dear Stacy" and the time machine in "It's About Time!" and "Phineas and Ferb's Quantum Boogaloo."
  • Phineas and Ferb have been busted eight times on-screen, although the first time ("Phineas and Ferb Get Busted") it was all Candace's dream in Perry's dream. The second time ("Interview With a Platypus") mom saw the animal translator, only to her Phineas and Ferb were just using some sort of recording machine. The third time occurred in the episode "Thaddeus and Thor", when their mom saw only the top portion of the fort (and not the other giant parts of it). Upon seeing this, she remarks on how Phineas and Ferb are "beginning to take an interest in building things." The fourth time ("The Lake Nose Monster") their mom actually sees the small boat which they built (Nosebud) and says that it's "pretty cool" because it actually floats. The fifth and sixth time ("Phineas and Ferb's Quantum Boogaloo) it both happened in a different universe. The fifth time older Candace busted them while building the Rollercoaster, which has been undone by herself after she saw that this would lead to a dystopian society run by Emperor Doofenshmirtz. The sixth time Candace busted them by showing herself to future mom, but this has probably been undone by Isabella when she went back in time and made the entire episode undone. The seventh time ("The Bully Code") mom saw Phineas and Ferb's creation, only Phineas and Ferb were gone and she thought it was some kind of modern art. The eighth time was when they built a pioneer village in "She's the Mayor", but that was undone when the acceleratorinator moves time backwards. Note: there are other times where Phineas and Ferb's plots have been seen by their parents, a famous example being in "Dude, We're Getting the Band Back Together" among others, however they weren't "busted" for them (assuming "busting" implies that they were intentioned to get in trouble for whatever they're doing). Also, all times Phineas and Ferb have been busted happened in Season 2.
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