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"Mom's in the House" is an episode of Phineas and Ferb.


When Phineas and Ferb can’t find Perry, they decide to create the Perrytronic 3000, a mechanical structure that can assume any form. Of course, being aware of the boys’ every move, Candace decides to take a different tactic on her busting approach by using a new technique that keeps Phineas and Ferb from finishing their Perry project. Meanwhile, Doofenshmirtz invents a Duplicator-Inator-2 so that he can duplicate his own head and make himself twice as smart.


Phineas and Ferb are in the yard. Linda walks out and asks what they're going to do today, to which Phineas explains that they want to take Perry on a walk. Linda says that she's either going to make spaghetti and meatballs, or a spaghetti meatball, which is just spaghetti inside of a meatball. She heads to the store to get ingredients. Phineas asks Ferb where Perry is and it shows a quick image of different rooms of the house. He then decides to make a Perrytronic 3000, which Ferb then finishes his sentence by pulling out a blueprint.

At Doofenshmirtz Evil Incorporated, Perry circling around the building with bat like wings. Monogram explains the new evilness readiness programs will make Perry ready to strike while Doofenshmirtz watches and wonders why he's flying around in circles that is creeping him. As Doofenshmirtz declares his ready for his scheme, Perry dives in and punches him, before getting trap in a bird cage. Doofenshmirtz reveals his Duplicator-Inator 2, and it will give himself two heads, as "two heads are better than one" and installed his own microwave oven to powered it.

Back at the Flynn-Fletcher house, Phineas tells Isabella to separate the eyes a little, as Perry's eyes are always out of focus. Baljeet asks what the Perrytronic 3000 will do, and Phineas explains that it has limitless ability. Inside Candace's room, she is yelling "Work! Work! Work!" which irritates Stacy. Candace explains to Stacy that it's her plan was to make Phineas and Ferb keep working with their invention so it won't disappeared that she called "Busy Bee Busting" or "B.B.Busting" for short. Stacy isn't convinced, so leaves, disappointing Candace. Meanwhile, Doofenshmirtz using the Duplicator-Inator 2 to create his second head, with a then drops to the floor and tells him to carry him and compliment each other that they like handsome.

Candace still doing the "B.B.Busting" technique, Candace gets the kids to do a "preliminary test" but won't let them completely finish it. Candace asks what do the Perrytronic do, and Phineas tells her as they about to take off that the theme song will tell everything. As they came back to the backyard, Candace asked them that it can transform anything else that Phineas conclude that they are not done yet with the Perrytronic. Candace calls Linda in the supermarket that she's coming home with the grocery but unknowingly left her purse.

Doofenshmirtz and the second head can't come up with a good idea so decide to have fun and zap random things with the Duplicator-inator 2. They shoot Perry's arm, making a duplicate of it. The arm frees Perry, and the second head blames Doofenshmirtz on it. The second head tells him to hit him but Doofenshmirtz fires Duplicator-Inator 2 and accidentally make a bunch of Perry body parts. The head tells him to point the inator somewhere else that Doofenshmirtz continues to fire it out of the building and one of the beams goes past Phineas and Ferb's house.

Candace calls Linda that she is in the driveway bringing groceries inside and telling Phineas and Ferb to don't stop working on the Perrytronic. Candace asks her where she is, and she says she's in the front door. When Candace runs in, Linda isn't there, so she calls her again. Linda tells her that she in the bathroom, then to Candace's room and later in the kitchen and Candace runs to her again, Linda wasn't there either. After a while, Linda drives off since the supermarket calls her that she left her purse and leaves, and Candace notices that there are two houses.

To fight off the Perry parts, Doofenshmirtz makes more out of him heads with the Duplicator-Inator 2. As they fight, two of Doofenshmirtz heads hold Perry in place with their mouths. Perry calls one of his copy arm and toss him towards the self-destruct button but it then disappears. Doofenshmirtz realizes that he still had the microwave attachment set to "Baked Potato", meaning that whatever he made would disappear after about three minutes. At the house, Linda pulls up and Candace tries to show her the two houses, but the second house disappears. Candace doesn't care, because the Perrytronic is still in the backyard.

Doofenshmirtz fight two of Perry's arms but quickly disappears. Perry is surrounded by Doofenshmitz's heads, but they also disappear. With one head left to defeat, Perry grabs a golf club and uses it to destroy the Duplicator-Inator 2 and Doofenshmirtz tries to stop Perry by throwing his second head but misses him and throws off the balcony with the inator fires a beam. The head comments that he should have disappeared before hitting the ground and curses Perry but cut off when he disappears. Doofenshmirtz tries to know what his second head was going to say until Perry destroyed the Duplicator-Inator 2 and leaves via jetpack that Doofenshmirtz knows now what he was going to say.

At the same time, Candace tries to get Linda to see the Perrytronic while she making the spaghetti meatball but decides to order pizza. When Candace tries to show her the Perrytronic, but the beam hits it. The two Perrytronics hit each other, and tumbles away from the backyard just as Candace brings Linda out, who only sees the real Perry. She invites the kids in for pizza and ice cream sandwiches. Ferb replies he only wants pie. Candace, who is disappointed and saying that now she has to "but-but-but".




  • Perry enters D.E.I. with a pair of wings and is trapped in the cage, but later on the wings disappear while he is in the cage.
  • Although the first head to be duplicated was created first, it was the last to disappear, longer than the others created which should have lasted only for 3 minutes.
  • When Doofenshmitz's first head tells Doofenshmirtz to hit him, Doofenshmirtz hits the Duplicator-Inator 2 button 3 times, hitting Perry's hand and tail. But in the next scene, more than three of Perry's hands and tail were shown.
  • Before Doofenshmirtz throws his duplicate head, his hair is dark brown instead of light brown.
  • Candace knocks on the bathroom door to get Mom out, but the door is for Mom's bedroom. (Identified by the pictures on either side)
  • When Doofenshmirtz's second head is yelling at him for accidentally letting Perry out of the cage, Doofenshmirtz's eyes are red.
  • This episode reveals that there is an empty lot next door to the Flynn-Fletcher house, but in previous episodes, there is another house in that empty lot.
  • After the song Perrytronic, while Candace is telling the boys she is telling her mother, Isabella's hair is all blue.
  • Candace shouldn't have tried to bust Phineas and Ferb for building the second house because they didn't build it.
  • When Linda looked out the window seeing the fence of the duplicated house, she should've seen the house itself.
  • On the word "Juvenile", the seventh Doofenshmirtz head's mouth moves, but the heads were heard saying in in unison.
  • When Candace turns around to see the house duplicate, her eyelashes disappear.
  • Candace runs from the bathroom upstairs to her room when the bathroom should really be upstairs.


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Major Characters: Phineas FlynnFerb FletcherCandace FlynnPerryDr. Heinz Doofenshmirtz

Secondary Characters: Linda Flynn-FletcherLawrence FletcherIsabella Garcia-ShapiroBaljeet TjinderBuford Van StommMajor Francis MonogramJeremy JohnsonCarl KarlStacy HiranoGinger HiranoMillyKatieHollyAdyson SweetwaterGretchenVanessa Doofenshmirtz
Recurring characters: Giant Floating Baby HeadDjango BrownColtraneCharlene DoofenshmirtzRoger DoofenshmirtzVivian Garcia-ShapiroIrvingJenny BrownSuzy Johnson Nana Shapiro• • DannyBobbi FabulousShermanMeapMitchNormClyde FlynnBetty Jo FlynnPinkyAlbertPeterKlimpaloonTalking ZebraMonty MonogramHildegard JohnsonReginald FletcherWinifred FletcherAloyse von Roddenstein
Minor Characters: JerryBigfootYetiKhaka Peu PeuThe RegurgitatorBob WebberPrincess BaldegundeMelissaUnnamed Fireside GirlsAgent EBrobotsDrill SergeantBuck BuckersonTiana WebberJack JohnsonMrs. JohnsonWendyEliza FletcherNicoletteMandyThaddeus and ThorMindyAmandaLucy FletcherAdrian FletcherBeppo BrownDr. HiranoAnnabelle JohnsonSaraBrigitte, Josette, and ColletteMishti PatelLiam McCrackenRodrigoMorgGlenda WilkinsDr. GevaarlijkHeinz Doofenshmirtz's motherBlanca DishonProfessor PoofenplotzEliza M. FeyersiedLyla LolliberryBalloony • Corn Colossus • Professor Parenthesis
Guest Characters: Santa ClausKim Possible PinocchioBaby BaboonThor OdinsonSpider-ManHulkIron ManRed SkullNick FuryVenomWhiplashMODOK

Season One: "Rollercoaster" • "Candace Loses Her Head" • "The Fast and the Phineas" • "Lawn Gnome Beach Party of Terror" • "The Magnificent Few" • "S'Winter" • "Are You My Mummy?" • "Flop Starz" • "Raging Bully" • "Lights, Candace, Action!" • "Get That Bigfoot Outta My Face!" • "Tree to Get Ready" • "It's About Time!" • "Jerk De Soleil" • "Toy to the World" • "One Good Scare Ought to Do It!" • "A Hard Day's Knight" • "I, Brobot" • "Mom's Birthday" • "Journey to the Center of Candace" • "Run Away Runway" • "I Scream, You Scream" • "It's a Mud, Mud, Mud, Mud World" • "The Ballad of Badbeard" • "Dude, We're Getting the Band Back Together" • "Ready for the Bettys" • "The Flying Fishmonger" • "Phineas and Ferb Get Busted!" • "Greece Lightning" • "Leave the Busting to Us!" • "Crack That Whip" • "The Best Lazy Day Ever" • "Boyfriend From 27,000 B.C." • "Voyage to the Bottom of Buford" • "Put That Putter Away" • "Does This Duckbill Make Me Look Fat?" • "Traffic Cam Caper" • "Bowl-R-Ama Drama" • "The Monster of Phineas-n-Ferbenstein" • "Oil on Candace" • "Unfair Science Fair" • "Unfair Science Fair Redux (Another Story)" • "Out to Launch" • "Got Game?" • "Comet Kermillian" • "Out of Toon" • "Hail Doofania!"

Season Two: "The Lake Nose Monster" • "Interview With a Platypus" • "Tip of the Day" • "Attack of the 50 Foot Sister" • "Backyard Aquarium" • "Day of the Living Gelatin" • "Elementary My Dear Stacy" • "Don't Even Blink" • "Chez Platypus" • "Perry Lays an Egg" • "Gaming the System" • "The Chronicles of Meap" • "Thaddeus and Thor" • "De Plane! De Plane!" • "Let's Take a Quiz" • "At the Car Wash" • "Oh, There You Are, Perry" • "Swiss Family Phineas" • "Hide and Seek" • "That Sinking Feeling" • "The Baljeatles" • "Vanessassary Roughness" • "No More Bunny Business" • "Spa Day" • "Phineas and Ferb's Quantum Boogaloo" • "Phineas and Ferb Musical Cliptastic Countdown" • "Bubble Boys" • "Isabella and the Temple of Sap" • "Cheer Up Candace" • "Fireside Girl Jamboree" • "The Bully Code" • "Finding Mary McGuffin" • "Picture This" • "Nerdy Dancin'" • "What Do It Do?" • "Atlantis" • "Phineas and Ferb Christmas Vacation!" • "Just Passing Through" • "Candace's Big Day" • "I Was a Middle Aged Robot" • "Suddenly Suzy" • "Undercover Carl" • "Hip Hip Parade" • "Invasion of the Ferb Snatchers" • "Ain't No Kiddie Ride" • "Not Phineas and Ferb" • "Phineas and Ferb-Busters!" • "The Lizard Whisperer" • "Robot Rodeo" • "The Beak" • "She's the Mayor" • "The Lemonade Stand" • "Phineas and Ferb Hawaiian Vacation" • "Summer Belongs to You!" • "Nerds of a Feather" • "Wizard of Odd" • "We Call it Maze" • "Ladies and Gentlemen, Meet Max Modem!" • "The Secret of Success" • "The Doof Side of the Moon" • "Split Personality" • "Brain Drain" • "Rollercoaster: The Musical!" • "Make Play" • "Candace Gets Busted"
Season Three: "The Great Indoors" • "Canderemy" • "Run, Candace, Run" • "Last Train to Bustville" • "Phineas' Birthday Clip-O-Rama!" • "The Belly of the Beast" • "Moon Farm" • "Ask a Foolish Question" • "Misperceived Monotreme" • "Candace Disconnected" • "Magic Carpet Ride" • "Bad Hair Day" • "Meatloaf Surprise" • "Phineas and Ferb Interrupted" • "A Real Boy" • "Mommy Can You Hear Me?" • "Road Trip" • "Tour de Ferb" • "Skiddley Whiffers" • "My Fair Goalie" • "Bullseye!" • "That's the Spirit" • "The Curse of Candace" • "Escape from Phineas Tower" • "Lotsa Latkes" • "Ferb Latin" • "A Phineas and Ferb Family Christmas" • "Tri-Stone Area" • "Doof Dynasty" • "Excaliferb" • "Phineas and Ferb and the Temple of Juatchadoon" • "Monster from the Id" • "Gi-Ants" • "The Remains of the Platypus" • "Mom's in the House" • "Perry the Actorpus" • "Let's Bounce" • "Bully Bromance Break Up" • "Quietest Day Ever" • "Doonkleberry Imperative" • "Meapless in Seattle" • "Delivery of Destiny" • "Buford Confidential" • "The Mom Attractor" • "Cranius Maximus" • "Agent Doof" • "Minor Monogram" • "What a Croc!" • "Sleepwalk Surprise" • "Sci-Fi Pie Fly" • "Sipping with the Enemy" • "Tri-State Treasure: Boot of Secrets" • "Doofapus" • "Norm Unleashed" • "Where's Perry?" • "Ferb TV" • "When Worlds Collide" • "What'd I Miss?" • "Road to Danville" • "This is Your Backstory" • "Blackout!"
Season Four: "For Your Ice Only " • "Happy New Year!" • "Fly On the Wall" • "Bully Bust" • "My Sweet Ride" • "Der Kinderlumper" • "Sidetracked" • "Primal Perry" • "Mind Share" • "Backyard Hodge Podge" • "Bee Day" • "Bee Story" • "Great Balls of Water" • "Where's Pinky?" • "Phineas and Ferb Musical Cliptastic Countdown Hosted by Kelly Osbourne" • "Knot My Problem" • "Just Desserts" • "La Candace-Cabra" • "Happy Birthday, Isabella" • "Love at First Byte" • "One Good Turn" • "Mission Marvel" • "Thanks But No Thanks" • "Troy Story" • "Druselsteinoween" • "Terrifying Tri-State Trilogy of Terror" • "Face Your Fear" • "Cheers for Fears" • "Steampunx" • "Just Our Luck" • "Return Policy" • "Live and Let Drive" • "Phineas and Ferb Save Summer" • "Father's Day" • "Imperfect Storm" • "The Return of the Rogue Rabbit" • "It's No Picnic" • "The Klimpaloon Ultimatum" • "Operation Crumb Cake" • "Mandace" • "Phineas and Ferb: Star Wars" • "Lost in Danville" • "The Inator Method" • "Night of the Living Pharmacists" • "Tales from the Resistance: Back to the 2nd Dimension" • "Doof 101" • "Act Your Age" • "Last Day of Summer" • "O.W.C.A. Files"

Locations at or near Danville: DanvilleSeattleMr. Slushy FranchiseDoofenshmirtz Evil IncorporatedFlynn-Fletcher HouseAtlantisGoogolplex MallOld Abandoned Amusement Park

Other: AfricaEnglandNew York CityBig BenMarsTokyoLondonChinaIndiaCanadaChileHawaii

Today is Gonna Be a Great DaySummer Belongs to YouCity of LoveJump Right InPerry the Platypus ThemePerry Saves ChristmasLet it Snow, Let it Snow, Let it SnowGitchee Gitchee GooWhere Did We Go Wrong?BustedLittle BrothersWhat'cha Doin?Carpe DiemS.I.M.P. (Squirrels In My Pants)I'm MeRollercoasterCouldn't Kick My Way Into Her HeartThe Ballad of KlimpaloonEvil for Extra CreditBackyard BeachHappy New YearGreat to Be a BabyWhat Might Have BeenSerious FunCurtain Call/Time Spent TogetherFollow the SunSilhouettes