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This is the list of Big Ideas in Season 1.

Episode Image Big Idea Disappearance Notes
"Rollercoaster" Flying rollercoaster They build a backyard roller coaster. They also trained monkeys to juggle (mentioned, happened before the roller coaster). Doofenshmirtz's giant magnet and Magnetism Magnifier pick it up.
It ends up at Melissa Chase's backyard. ("Murphy's Lard")
The rollercoaster goes all over town.
"Lawn Gnome Beach Party of Terror" Backyard beach revealed They build a beach in their backyard and do surfing contests, limbo contests, sandcastle building contests, etc. Doofenshmirtz's Destruct-inator sucks up all the water, then Phineas pushes a button to put up the fence, hiding the beach before Mom enters. It's unknown what happened to the rest of the beach afterwards. This is one of the most near-impossible plans since the houses behind Phineas and Ferb disappear.
"Flop Starz" Flop Starz They become one-hit wonders with a smash hit song.

Building with ad: Gets demolished.

Band: They retire.

The boys don't know their mom used to be a one-hit wonder herself under the moniker Lindana.
"The Fast and the Phineas" 42 lands on the road They enter a race with a life-size remote control car modified from their mother's vehicle. The car goes through a car wash, which removes all the modifications. (There were four other ways this project could have disappeared) The boys race in the Swamp Oil 500.
"Lights, Candace, Action!" Reassuring Candace about the rubber snakes They become movie directors and produce a movie starring Candace. Doofenshmirtz's Age Accelerator-inator zaps the adolescent cinema audience and turns them into pensioners, who hate the movie. The boys are hired thanks to the incredible number of hits on their homemade-video website.
"Raging Bully"

Phineas punching a string of sausages
Boxing ring

Phineas thumb wrestles Buford after accidentally dropping ice cream on him. Doofenshmirtz's Slave-inator mind controls the crowd into cleaning everything up.

Candace takes a picture of the match, but her thumb covers the lens.

The boys build an arena to thumb wrestle in the Googolplex Mall parking lot.
"Candace Loses Her Head" Candace and her monument They carve Candace's face into Mount Rushmore during a trip. A lava flow, spawned by Doofenshmirtz's Drill-inator, causes the face to fall apart.

Their progress was blocked by the gushing of Old Reliable Geyser and a fake knockoff by the Fireside Girls.

Their work is intended as a birthday present for Candace.
"I, Brobot" Circle of brobots
I brobot60
Zoo close-up
I brobot65
I brobot66
Robot Bean & Tea Leaf
They build a second-generation robot-assembling device to create robot versions of themselves. Robot Machine: N/A

Brobots: Doofenshmirtz's giant magnet attaches to Santa's sleigh, and proceeds to pick up the Brobots. One of the Ferbots is bagged by Candace, then taken away by a garbage truck. It is unknown what happened to the bot's creations.

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, with two others designed but not explicitly built.
"Run Away Runway" P&FClothes They build a cold-fusion reactor, but then decide to become fashion designers instead and create their own style of clothes. Doofenshmirtz's clones set a new trend for lab coats, so everyone starts wearing them instead. The boys' collection rocks the fashion world.
"The Magnificent Few" Horse riding They go on a hectic cow roundup around town. They gather the cattle and a fence, made by termites eating part of a roller coaster, falls around them. Phineas and Ferb imitate cowboys for the drive.
"S'Winter" Snowboard Champions They use a snow cone machine to create a new season, S'Winter, summer and winter mixed together. Doofenshmirtz plugs in his Melt-inator, causing a power surge, so the fans and freezers keeping it cold turn off and it melts. Another name for the season is "Wummer".
"Jerk De Soleil" Circus Tent They set up their own circus. Doofenshmirtz's Voice-inator fills the tent with Doofelium until it bursts. Ferb then presses a button which lowers the bleachers into the ground. They erect a big tent in their backyard after the local performance is canceled.
"Are You My Mummy?" Hi, Mummy
Are You My Mummy76
They try to find and catch a mummy, mistaking a wrapped Candace for it. A water flow shatters the sarcophagus and cleans all the toilet paper, butter, and gum off of Candace. Phineas and Ferb are inspired to do this after watching a movie at an Egyptian-themed theater. The boys search the theater basement for a real mummy, but the exhibit is just promotional junk.
"Ready for the Bettys" Inside Agent P's lair They "become secret agents" after accidentally discovering Agent P's lair and save Candace and the Bettys. Perry takes back his hovercar and dumps the boys into Isabella's pool. Phineas thinks Ferb put the whole thing together.
"I Scream, You Scream" Well, this can't be right
Ice cream in bed
They build the world's biggest ice cream maker for Isabella to celebrate her tonsil extraction. They accidentally get the blueprints for and wind up building the Space Laser-inator and launch it. Fortunately, they don't attach the laser when it takes off. Ferb takes the laser plans by mistake because he is distracted by Vanessa. The original plan had been to recreate the Trojan War.
"Toy to the World" Perry the 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 Har D Har Toy Company stops production of the toy when Phineas and Ferb resign. 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. Doofenshmirtz gets tied up in the wires for the Bigfoot dummies and he runs away with the fake Bigfoots in tow. Candace and their grandparents get the last laugh.
"It's a Mud, Mud, Mud, Mud World" IAMMW-364-The Candace Crusher They turn the family car into a monster truck and make a derby. Buck Buckerson takes the track and the boys turn off the modifications to the family car. They help Candace learn to parallel park by entering her in a monster truck rally. Earlier, the two have their toy trucks go light speed.
"Journey to the Center of Candace" Sub They build a shrinking watercraft and go inside Candace. The submarine is sucked up by a giant vacuum cleaner and later swallowed by Pinky. They want to help Isabella get her sash back from her dog's stomach.
"It's About Time!" Needstobepluggedin They fix the museum's time contraption and go to the era of the dinosaurs. The first time machine is stepped on by a T. rex. The one that Isabella and the Fireside Girls build does not vanish, but the dinosaur that follows them back to present-day is zapped by the Freeze-inator, transforming it into a display in the museum. Other "ripples", such as Lawrence seeing an imprint of his daughter on a fossil, are undone when Phineas and Ferb ride their scooter over it, splattering the mud back in the Cretacious Period before he can show Linda. Isabella and the Fireside Girls come to the rescue after Phineas figures out how to send a message through time.
"Dude, We're Getting the Band Back Together" Love Händel reunion concert They reunite the band Love Händel after their dad forgets his wedding anniversary. N/A They help recreate the most romantic moment in their parents' relationship for their anniversary.
"Tree to Get Ready" Phineas and Ferb's Treehouse They fix up their and Candace's old tree houses and have a treehouse fight. After they trip over a cable, they roll all over town and the modifications fall off. The treehouse fight controls are based on the ones from a wrestling video game played by Candace and Stacy.
"The Ballad of Badbeard" Phineas and Ferb's ship They make a pirate ship out of Grandpa Clyde's dinghy. N/A They use it to find Badbeard's treasure, bad fake beards.
"Greece Lightning" Leading the chariot race They host a chariot racing event through Danville with Isabella, the Fireside Girls, Buford, Baljeet, and Candace. The chariots are destroyed when they crash into the museum. There are no rules for the chariot race, which spans from the Flynn-Fletcher house to the museum. Candace ends up winning it.
"Leave the Busting to Us!" PF ferris wheel
PF waterslide
They build a gigantic observation wheel and a backyard water ride.

Ferris wheel: A laser, presumably from Doofenshmirtz, hits it and it rolls away.

Candace is secretly filming them for the reality show Bust 'Em.
Water ride: A tornado from Doofenshmirtz's Gloom-inator 3000-inator sucks it up. The footage is then lost when Doofenshmirtz steals the Bust 'Em van.
"Mom's Birthday" Happy Birthday, Mom! They throw the best birthday party ever for their Mom. N/A Highlights: A breakfast bar, a giant birthday card, a video presentation, and a satellite up-link to Dad, who is out of town.
"Crack That Whip" View from above the new arena They build a roller derby rink for a replay competition. Doofenshmirtz's Bread-inator hits it and then a flock of magpies eat it. Roller derby queen Grandma Betty Jo wants a rematch with an old rival: Jeremy's grandmother.
"The Best Lazy Day Ever" Boys relaxing
The Best Lazy Day Ever130
They do nothing for a whole day to try it out. Candace, annoyed at this, decides to build something herself: a dinosaur-themed water slide. The dinosaur comes into contact with Doofenshmirtz's balloon and it flies the slide out of the yard. 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 caveman and attempt to teach him about the modern world. Doofenshmirtz falls into a sandwich suit, which a hungry Conk chases away. Conk follows Candace in a cavegirl costume, who is bringing a sandwich platter to a costume party. She mistakes him for Jeremy in a costume.
"Voyage to the Bottom of Buford" The Submarine is Lowered Into the Water They build a waterfront submarine to help Buford find his goldfish Biff, who is lost at sea. The camera that Candace uses to take photos is shorted out by the water from the water tower. It is unknown what happens to the submarine. This is the second time Phineas and Ferb build a submarine.
"A Hard Day's Knight" The Jousting Arena In England, the boys hold a medieval jousting tourney. A giant robot dragon, controlled by Doofenshmirtz, explodes and destroys everything. Candace starts out acting the part as the damsel in distress, but ends up in even more distress as the Black Knight.
"Traffic Cam Caper" TCC-202-Good thing we had this extra rocket They construct a lunar elevator, and chase Norm to recover Candace's evidence.

Bike: The bike takes off and explodes.

It takes place at night. Candace is trying to use the traffic camera footage to bust them; they help her out because they think it would be cool to fight a giant robot. Candace later had to sacrifice the disk to save Phineas from a life-threatening fall.

Disc: Perry takes the disk because it had recorded his secret identity, so he has to dispose of it.

"Bowl-R-Ama Drama" BRD-48-The bowling ball headed for the pins They build a big piloted bowling ball and make the world's biggest bowling game. It hits Doofenshmirtz's Giant Robot Penguin Icy Freeze Your Socks Off Breath -Inator Thingies and explodes. They use the giant bowling ball to break world records.
"Got Game?" GG-79-The plane having passed the stadium They begin a series of bizarre sports for Candace, Isabella, Baljeet, and Buford to compete in, hosting them in a stadium. Doofenshmirtz's falls into the pet shop, startling the woman holding it, who stumbles backwards and knocks over a cage with a cat in it. The cat runs into the road, causing a lorry to swerve and hit a giant globe, which rolls into a space rocket about to launch, knocking it over. It flies sideways and picks up the stadium. The boys go against the girls in a game of life-size Foosball.
"Comet Kermillian" CK-220-View of the observatory behind the house They build the Observa-Ferb-atory with an enormous laser, with which they carve their faces into the passing-by Kermillian's Comet. Doofenshmirtz's heat ray makes the Observa-Ferb-atory explode. They intend to show it to their grandchildren when it comes back after another seventy-three and a half years.
"Put That Putter Away" Miniature Golf They build a miniature golf course to make it up for the closure of Little Duffer's. Doofenshmirtz's Atomic Leaf Blower-inator blows the windmill at the top, making it fly away. It eventually ends up at Little Duffer's. Candace is sick, so she relies on Stacy to bust the boys. Stacy gets distracted and ends up playing with them.
"Does This Duckbill Make Me Look Fat?" The teleporters They build a real teleporter after seeing one in a movie. Doofenshmirtz's old Shrink-inator hits the teleport rings, turning them small enough to be replacement earrings for the ones their mother cannot find. When Candace and Perry accidentally enter it at the same time, their minds switch.
"The Flying Fishmonger" Fishmonger post-flight They help their Grandpa Reginald jump a gorge with his motorcycle, the Holy Mackerel. A giant shoe from Doofenshmirtz's Who's Crying Now-inator hits some dump trucks, which fill up the gorge. Grandpa Reginald requests to hear his old theme song once more, causing it to rain, making grass grow. The Holy Mackerel, however, still stands. The Mackerel had been previously converted into a lamp.
"One Good Scare Ought to Do It!" Mariachi Tree
The Haunted House
They build a haunted manor to scare the hiccups out of Isabella. The haunted house is picked up by a string of Christmas lights and then destroyed by Doofenshmirtz's Disintivaporator. Before they find out about Isabella's hiccups, Phineas and Ferb create a Mariachi tree.
"The Monster of Phineas-n-Ferbenstein" Platypus monster walking through town Phineas and Ferb's ancestors enter a monster contest by creating a giant platypus monster. The angry mob doesn't notice the monster platypus and starts chasing after Constance, who had drank Jekyll Doofenshmirtz's potion, changing her into a monster. It was raining at the time, so Phineas and Ferb could not follow through with their plan to "stand alone in a field with a metal rod". Instead, their grandfather tells them this story to pass the time.
"Oil on Candace" Helicopter paint roller They paint the Unpainted Desert alongside Django to make a replica of a painting done by him. Doofenshmirtz accidentally destroys the Danville dam, so the water rushes over the Unpainted Desert, washing the paint off. 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 his son did for him.
"Out of Toon" Team Improbable They make a cartoon about themselves and their friends as superheroes, using the Phineas & Ferb Studios. Doofenshmirtz's Dance-inator hits the studio and screen, so it gets up and dances away. They are inspired by Pinhead Pierre, who asks, "If you could have any super power, what would it be?"
"Hail Doofania!" Rainbowinator firing They create a Rainbow-inator after Isabella points out she had never seen one. Perry, who is wearing a scratch collar, tries to run into his lair, but rebounds off the wall and hits the self-destruct button. The plan comes about because Phineas believes Isabella had never seen a rainbow. When she points out that what she wants to see is a unicorn, Phineas declares that he knows what he will do tomorrow.

Phineas and Ferb build the inator of the episode, when it's usually Doofenshmirtz who does that.

"Out to Launch" The boys' rocket They build a rocket to visit a shooting star bought for them by their dad on the internet. They also build a second rocket for Candace.

The first rocket: It explodes.

The second rocket: Linda reverses the car into the garage. The car is still connected to the rocket, however, so it launches back into space, taking Mission Control with it.

Building a rocket is featured in the theme song.

"Phineas and Ferb Get Busted!" Vlcsnap-2020-05-15-17h06m12s110
Vlcsnap-2020-05-15-17h08m20s120
They build the "Flying Car of the Future -- Today". They are then sent to a reform school. While there, they build a bed that is like a Ferris wheel, and have a corn dog stand. The car gets destroyed on the way there, then falls into a canyon and breaks.

The parking tower falls on its side due to a missing bolt, destroying part of the house.

The entire adventure is a dream.
"Unfair Science Fair" Portal to Mars They help Baljeet get a good grade by building a Portal to Mars. Mr. McGillycuddy plugs it into a high voltage outlet and turns it all the way up to high, so it implodes. Baljeet doesn't win the fair. However, he isn't dismayed by that because he only desired the grade.
"Unfair Science Fair Redux (Another Story)" Ferb talking to the Martians They try to rescue Candace, who is trapped on Mars. They retrieve their sister. The Martians' carving of Candace's face on Mars is blown up by Doofenshmirtz's first inator. They fix and upgrade the Mars rover that Candace destroys by turning it into a car.

See also[]

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