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This article is about the episode. You may be looking for the song.


Friends, bullies, Irving. At 0900 hours a UCO, or "Unidentified Crashing Object", landed in our front yard. We've reversed engineered a piece-by-piece duplicate of the strange object. We've called you here to help us discover what this object is and how it works.

— Phineas Flynn

When Doofenshmirtz's latest invention lands in the front yard of the Flynn-Fletcher household, Phineas, Ferb, Candace, and Linda try to find out what it does. Since Lawrence doesn't believe Linda about the invention, Candace decides to use him to show Phineas and Ferb's reverse-engineered creation.

Episode Summary[]

Lawrence is outside putting up a bird feeder and house on a tree. He presses a button and the house opens. He decides that it doesn't do what he wanted it to do but leaves it.

In the living room, Phineas and Ferb are watching a program on reverse engineering. It talks about what it is and how to do it. Phineas asks where Perry is once the program has finished and the scene cuts to Major Monogram asking Carl where Perry is. Carl says he came in early. Since Perry has his mission, Monogram decided to go home.

Perry is already on Heinz Doofenshmirtz's hover jet and they are fighting. Perry gets caught in one of the many traps that were set. Doofenshmirtz then tells him about one of his first dates. It was with Linda Flynn and they were in a drive-in theater, going to watch a film. Linda says that she would like to be a pop star one day. Doofenshmirtz sarcastically replies that he will take over the world, and she suggests that he should start small and try to take over the Tri-State Area. Doofenshmirtz says it's unlikely but he'll try. He then brings out a machine to make the movie's sound 5th Dimensional and attaches it to their car. Unfortunately, the machine makes the cinema screen explode and blast off into the sky. Whilst finishing his flashback, Doofenshmirtz trips on one of his traps and knocks his latest machine into the Flynn-Fletcher house in the front lawn.

Candace sees the machine and assumes that Phineas and Ferb built it. She calls Linda to see it and says the boys made it. Linda calls the boys and asks what that machine is. Phineas says they didn't build it but they wanted to know what it did. Linda says not to touch the machine, so Phineas and Ferb do some reverse engineering and create a duplicate in the back yard.

Linda phones Lawrence whilst he is in the middle of a presentation about the history of Whiskershire and Chedderton. She asks what that thing was in the garden and Lawrence says that he made it, thinking it was the bird feeder. He says he has to go and cuts Linda off.

Doofenshmirtz is still in one of his traps and presses a button to release Perry. Perry then tries to steer the jet away from Mt Kilimanjaro. The side of the jet hits the mountain and Perry falls into another trap. Doofenshmirtz then comments that his ship has as many traps as a golf course.

In the backyard, Phineas, Ferb, Buford, Baljeet, Irving and Isabella are trying to work out what it does.

In the end, Baljeet and Isabella are having a "romantic" dinner when the machine picks up the candle and is about to destroy it. Phineas tells it to put the candle down and it follows his instructions. Everyone decides that it is an anti-romantic machine.

Linda is still out the front of the house and she phones Lawrence again about the machine. Candace is meanwhile trying to get Linda to see what Phineas and Ferb had built. Candace explains that how Linda feels at the moment is how she feels when trying to bust the boys, but Linda doesn't get it. Candace then says that she always drags Linda to the invention. Linda decides to do the same with Lawrence and drags him out of his presentation. Whilst being dragged off, he asks if anyone has any questions. Everyone puts their hand up but Lawrence is out of the room before he can answer them.

Perry escapes his trap once again put grabs the scepter from the statue of the Earl of Whiskeshire. He activates all of the traps and steers the hover jet again. Perry throws the scepter out of the jet and it hits the machine in the front yard.

Candace is outside talking to Stacy about how she will bust the boys but the machine floats up, covers the mark it made in the grass and flies to the back of the house. It sees the duplicate and they both fall in love. They fly off into the sky just as Linda and Lawrence are getting out of the car. Candace is still trying to show Linda Phineas and Ferb's machine but then she sees them flying off into the sky. She gives up and walks away.

Isabella wonders why anyone would build a device to destroy romance in the first place. Ferb answers that if a human heart undergoes reverse engineering, love and gross mushy red stuff are bound to be discovered. The episode ends with everyone agreeing.

Transcript[]

Read the transcript of What Do It Do?.

Songs[]

Gallery[]

Click here to view more images from "What Do It Do?".
View the image gallery for "What Do It Do?".

Running Gags[]

I know what we're gonna do today![]

Phineas: Hey, Ferb, reverse engineering, huh? Uh? I know what we're gonna do today!

Candace: Think again, Bucko! Mom said "No touchee-touchee!"

Phineas: We don't need to touchee-touchee. We have a portable electronic scanner, gumption, and another portable electronic scanner.

The "Too Young" Line[]

Linda: Hold on, is it buzzing?
Candace: Yes, yes it is.

Ferb's Line[]

Isabella: I wonder what would make someone wanna build something to destroy romance in the first place?

Ferb: Well, if you reverse engineer the human heart, you're bound to find love at its core.
Buford: And gross, mushy, red stuff!
Ferb: Yes, love and gross, mushy, red stuff.
Irving: And ventricles!
Ferb: Actually, I think ventricles is already included in gross, squishy, red stuff.
Everyone but Ferb: Yeah.

What'cha doin'?[]

None.

Hey, where's Perry?[]

Phineas: Cool. Hey, where's Perry?
Major Monogram: Hey, Carl, where's Agent P?

Perry's entrance to his lair[]

Not shown, but Carl mentioned to Major Monogram that Perry came in early.

Evil Jingle[]

Doofenshmirtz Rocket-Powered Jet Skiff!

Memorable Quotes[]

Linda: This song makes me want to be a popstar.
Doofenshmirtz: Yeah right, and I'm gonna rule the world.
Linda: Well, why not?
Doofenshmirtz: Yeah, like I can do that.
Linda: Well, instead of the world, why not start small, like... the Tri-State Area?
Doofenshmirtz: Oddly enough, she did become a pop star and... I'm still struggling with the whole Tri-State Area thing, but the dream's still alive.
Phineas: Ask/bust us what?
Linda: Do you mind telling me what this is and why you built it in our front yard?
Phineas: Umm, we didn't build this, Mom.
Candace: Hah! Quick, bust 'em - wait, you didn't?
Phineas: Not that I'm aware of, no.
Doofenshmirtz: See, Perry the Platypus, my new jet rocket skiff has more hidden traps than... (Snaps fingers) Um, uh—What's something with a lot of hidden traps? Huh, wow, I felt so confident going into that sentence.
Doofenshmirtz: You know, Perry the Platypus, I just...a golf course! A golf course has lots of traps! That's what I should have said.
Perry and Doofenshmirtz are flying over Paris.
Doofenshmirtz: "PIERRE! (Hides and laughs) Did anyone look? I bet, like, half the people down there were looking around like: (French accent) "Who called my name?" (Laughs)
Phineas: Wow, two anti-romance rockets falling in love...
Buford: That's what I call ironing.
Linda: There. Tell me that's not terrifying!
(Candace dances while singing repeatedly "It's a busting feeding frenzy, stay outta the water!")
Lawrence: I'm so sorry I doubted you.
Candace: (dances while singing) It's a busting feeding frenzy, stay outta the water! It's a busting feeding frenzy, stay outta the water! It's a busting feeding frenzy, stay outta the water!


Linda: Wait...But...Candace, where did that thing go?
Candace: Going down down down at the busting feeding frenzy, stay outta the wa-taa! Hmmm. I don't know! But, Mom, you and Dad hafta come to the backyard with me right now and see what the boys are --
(The two robots fly across the sky leaving a heart-shaped mark of smoke and it disappears. Candace looks up and Linda looks up.)

Ugh, never mind.

Background Information[]

  • This episode depicts Linda mirroring Candace's behavior, trying to convince Lawrence of the strange gizmo as Candace tries to convince Linda of the boys' creations. Despite Candace pointing out this relationship, Linda still doesn't believe her.
    • That being known, it could be implied that Candace's obsession and erratic behavior may have been a trait inherited from Linda.
  • This episode also depicts how Linda would react if Candace actually managed to prove her about the boys' invention, although this time it wasn't their creation.
  • Dr. Doofenshmirtz drove an AMC Gremlin to the drive-in movie theater.
  • The episode shows Linda's aspiration of becoming a pop star and how successful she was fulfilling it in contrast with Doofenshmirtz's aspiration to take over the Tri-State Area as she has suggested and his constant failure trying to realize it.
  • The "Kronk for Hire" cue plays as Dr. Doofenshmirtz educates Perry about- and warns him that he is going to crash into- Mount Kilimanjaro.
  • In the flashback of Heinz and Linda, Heinz is shown with braces. This tells us that at one time he had braces to re-align his teeth, although we do not know how long he had the braces on for.
  • When Doofenshmirtz didn't know what to say "It's gonna be...", and then later in the episode he thinks of it and then says "That's what I should've said," that's really similar to when he couldn't think of it in "Robot Rodeo".
  • In this episode, Linda tries to do Candace's personality saying "but..but..".

Production Information[]

  • Zanzibar (the name of the band that sings "What Do It Do?") is the name of the episode of a 1996 musical episode of Rocko's Modern Life that won Phineas and Ferb co-creators Dan Povenmire and Jeff "Swampy" Marsh an EMA (Environmental Media Awards) Award.
  • On Disney Channel, this is the first episode of 2010.
  • This episode, along with "Atlantis", are the final episodes to use the font Graphite for the end credits.

International Premieres[]

  • October 24, 2009 (Disney XD UK)
  • January 19, 2010 (Disney Channel Latin America)
  • April 10, 2010 (Disney Channel Spain)

Errors[]

  • On the drive-in date flashback, Doofenshmirtz's white disco coat turns green when he gets in the car, but goes back to white when the scene changes to the outside POV (when Linda tells him to get the car speaker).
  • As Doofenshmirtz's flashback ends, his mouth does not move when he says "And I never saw her again."
  • They said Isabella was dressed as a Belly Dancer. But she actually was a Hula Dancer.
  • When Isabella was dressed as a Hula Dancer, she had no bellybutton.
  • In the first scene, when Lawrence was giving a bird house, before he pressed the button it has a pole for the birds to stand on. But when he pressed the button and it opened and pressed it again it closes and doesn't have the pole anymore.
  • Technically, Zanzibar's hit should've been spelled as "What Does It Do?" instead of "What Do It Do?"
  • The Roswell UFO incident took place in 1947, not the 1950s.
  • When Linda says "Nobody touches it", a black line can be seen going across the bottom of her neck.
  • In the credits, Dee Bradley Baker is absent.

Continuity[]

Allusions[]

  • Feeding Frenzy - As Candace dances, she sings "It's a Busting Feeding Frenzy; Stay outta the water!" referencing the game.
  • Julius Caesar (the play by William Shakespeare) - Phineas addresses Isabella, Buford, Baljeet, and Irving as "Friends, Bullies, Irving" similar to "Friends, Romans, Countrymen" from Mark Antony's speech.
  • Lawrence's tale about Whiskershire mirrors the story of The Pied Piper of Hamelin.
  • Towards the beginning of the episode, Phineas and Ferb are seen watching the Uncovery Channel, which seems similar to the Discovery Channel, including the title.
  • Zanzibar is an island off the coast of Africa, which is part of the United Republic of Tanzania. Billy Joel also has a track called "Zanzibar" on his 1978 album 52nd Street. However, it's the story of a bar named Zanzibar, not reverse engineering. Zanzibar was also mentioned in Muppet Treasure Island.
  • American Cinemas - The drive-in's screen during the Flashback has Dancing Food on it like in the typical American cinemas.
  • The song has a beat that sounds like the hit song from Tommy Tutone's 1981 song "867-5309/Jenny".
  • Friends - Heinz Doofenshmirtz's hair when he was young is similar to the hair that Chandler Bing had in a Friends episode, could both be an allusion to 80s-Techno hairstyles.
  • Hey Arnold! - Candace calls Phineas "Bucko", much like Helga Pataki calls the ones she is bullying.

Trivia[]

Cast[]

Main article: Credits
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Previous:
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Season 1
"Rollercoaster" | "Lawn Gnome Beach Party of Terror" | "Flop Starz" | "The Fast and the Phineas"
"Lights, Candace, Action!" | "Raging Bully" | "Candace Loses Her Head" | "I, Brobot"
"Run Away Runway" | "The Magnificent Few" | "S'Winter" | "Jerk De Soleil" | "Are You My Mummy?"
"Ready for the Bettys" | "I Scream, You Scream" | "Toy to the World"
"Get That Bigfoot Outa My Face!" | "It's a Mud, Mud, Mud, Mud World" | "Mom's Birthday"
"Journey to the Center of Candace" | "It's About Time!"
"Dude, We're Getting the Band Back Together" | "Tree to Get Ready" | "The Ballad of Badbeard"
"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" | "A Hard Day's Knight"
"Traffic Cam Caper" | "Bowl-R-Ama Drama" | "Got Game?" | "Comet Kermillian"
"Put That Putter Away" | "Does This Duckbill Make Me Look Fat?" | "The Flying Fishmonger"
"One Good Scare Ought to Do It!" | "The Monster of Phineas-n-Ferbenstein" | "Oil on Candace"
"Out of Toon" | "Hail Doofania!" | "Out to Launch" | "Phineas and Ferb Get Busted!"
"Unfair Science Fair" | "Unfair Science Fair Redux (Another Story)"
Season 2
"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" | "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 3
"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 Breakup" | "Quietest Day Ever" | "The Doonkelberry 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?" | "Where's Perry? (Part Two)" |"Ferb TV"
"When Worlds Collide" | "What'd I Miss?" | "Road to Danville"
"This Is Your Backstory" | "Blackout!"
Season 4
"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" | "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" | "Father's Day"
"Imperfect Storm" | "The Return of the Rogue Rabbit" | "It's No Picnic" | "The Klimpaloon Ultimatum"
"Operation Crumb Cake" | "Mandace" | "Lost in Danville" | "The Inator Method"
"Tales from the Resistance: Back to the 2nd Dimension" | "Doof 101" | "Act Your Age"
Season 5
"Summer Block Buster" | "Cloudy with a Chance of Mom" | "Appetite for Adventure" | "License to Bust"
"Dry Another Day" | "Deconstructing Doof" | "Tropey McTropeface" | "Biblio-Blast!" | "A Chip to the Vet"
"More Than an Intern" | "The Aurora Perry-Alis" | "Agent T (For Teen)" | "The Haberdasher"
"The Candace Suit" | "Out of Character" | "Meap Me in St. Louis"
Specials
"Phineas and Ferb: Summer Belongs to You!" | "Phineas and Ferb Save Summer"
"Night of the Living Pharmacists" | "Last Day of Summer" | "O.W.C.A. Files"
Films
Phineas and Ferb the Movie: Across the 2nd Dimension
Phineas and Ferb the Movie: Candace Against the Universe
Crossovers
"Phineas and Ferb: Mission Marvel" | "Phineas and Ferb: Star Wars" | "The Phineas and Ferb Effect"
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