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What Danville really needs is a big tourist attraction.

Phineas Flynn

"The Doof Side of the Moon" is an episode of Phineas and Ferb.


Phineas and Ferb plan to put Danville on the map by building the world's tallest building. However, Candace teams up with Albert and utilizes his expertise to bust her brothers. Meanwhile, Dr. Doofenshmirtz wants to be responsible for all the evil in the Tri-State Area, and since he believes that evil levels rise during a full moon, he plans to rotate it so that only the infamous "dark side of the moon" faces Earth.

Episode Summary

Phineas and Ferb are watching a TV commercial begging people to come to Danville. Phineas remarks that begging is unbecoming, and that Danville really needs a big tourist attraction. He suddenly knows what they're going to do today.

In another room, Linda tells Candace she is going to make her rounds. Just as Candace says goodbye, large trucks carrying supplies for Phineas and Ferb's new project drive into the backyard. She calls out for her Mom, but Linda's already gone. She quickly decides she needs backup and calls Stacy. Unfortunately, her friend is going to the eye doctor and won't be able to help her.

Candace and Albert meet.

Out on the sidewalk, Irving is carrying a box full of spy cameras for Phineas and Ferb and walking with his older brother, Albert. Albert decides he is going to teach Irving self-defense with his nunchucks, but Irving complains that he would much rather see what Phineas and Ferb are doing. Albert takes the box of cameras from him and dumps them on the ground. After he refuses to pick them up, Irving angrily leaves to go play with Phineas and Ferb.

Albert is left alone until Candace walks by, talking on the phone with Jenny. Immediately lovestruck, he hits on her, offering to help her since it's part of his Medieval Knight's Code to help a "Damsel in Distress". Candace at first blows him off, until he suggests using spy cameras to catch Phineas and Ferb in the act, therefore busting them. Candace realizes she will need a nerd's help to bust her brothers, and Albert gives her his "nerd word" that he will help her.

Meanwhile, Agent P is getting his briefing from Major Monogram. Dr. Doofenshmirtz has been brushing up on his astronomy, and Major Monogram tells him that they don't know what he's planning. He tells Agent P to go to Doofenshmirtz's unrealistically fast. Perry disappears, and four seconds later, arrives at Doofenshmirtz Evil Incorporated. As soon as he arrives, he is trapped in a space helmet. Doofenshmirtz shows him a graph of his evil and explains that in every given month, he is evenly evil, never getting more or less evil, but on the full Moon, other evil activity rises and he seems less evil by comparison. He decides to turn the Moon around so the dark side will face the Earth, eliminating the full Moon, and freezing all other evil, making him seem more evil by comparison. Perry stares at him like he's an idiot and Doofenshmirtz says an idiot wouldn't build a Lunar-Rotate-Inator, though he accidentally shows a different idea when he pulls away a curtain to show proof, instead revealing a cork with a jellybean taped to it.

Back with Phineas and Ferb, they, along with Isabella and Irving, are building the world's tallest building, adding many floors to it continuously while Albert and Candace are setting up the spy cameras. Irving looks through a telescope from a part of the building and notices, deciding to disable the cameras.

Phineas, Isabella and Ferb build too far and hit the moon.

At the top of the building, which had reached far above Earth, Isabella asks how will they know when they will stop building. Phineas says they'll just know when they get there, just as the building hits the Moon. Ferb decides they're there. On Earth, Candace and Albert are in a van, ready to look through the spy cameras. However, none of the screens seem to be working. They go outside to investigate, at which point Irving calls to Albert from a balcony on the building, and reveals that he has taken all of the cameras. A thoroughly enraged Albert runs into an elevator and goes after him to retrieve the cameras.

The building rotates over Candace and Linda

When he enters the building, he is stunned by the variety of things inside, including a monorail rollercoaster. Irving comes by him on the monorail, chides him for wanting to bust Phineas and Ferb, and speeds away again. Albert chases after him, boarding the same car Phineas and Ferb happen to be on. The two give him a quick tour on the rollercoaster, which thoroughly astounds Albert, and drop him off at the floor where Irving is.

Albert agrees that Phineas and Ferb are geniuses, but it won't stop him from trying to bust them for Candace because he gave her his nerd word. This shocks Irving, who states that he now has only two left. Albert takes the elevator back down and tells Candace that he didn't retrieve the cameras, but that the building is so well built, there is no way that it can disappear before her Mother comes home, at which point Candace is overcome with happiness that she has won.

Agent P escapes from the space helmet and runs at Doofenshmirtz, only to trip over the jellybean taped to a cork. Doofenshmirtz quickly shoots his Inator at the Moon, which is connected to Phineas and Ferb's building through the spire at the top that is jammed into it. It begins to rotate, pulling the building up and out of sight just as Linda returns home, once again failing Candace's attempt to bust her brothers.

Doofenshmirtz realizes that even though the Moon is rotating, the dark side isn't moving. Agent P backs up and positions the Inator just right so that it gets hit by the bottom of the building as it rotates with the Moon. He puts a space helmet on Doofenshmirtz as the evil doctor is caught on the building and is taken up into space, where he eventually realizes the Moon reflects light from the Sun. He then calls himself a "Dummkopf" (idiot) and states that he should have rotated the Sun.



Video releases


  • Phineas and Ferb: A Very Perry Christmas (included as a bonus feature)

Background Information

  • This is one of the few episodes where Perry does not defeat Doofenshmirtz.
    • In fact, Doofenshmirtz's Cork with a Jellybean taped to it may have been what TV Tropes calls a Xanatos Gambit. Where the villain prepares for the hero's inevitable success, and prepares to turn it on them. He supports this with the quote, "I told you it was a layered idea." But Doofenshmirtz might have simply taken note of Perry's misfortune.
  • It is true that crime rates increase dramatically during the full Moon.
  • When on the rollercoaster Phineas said 'The studio audience floor', they might have been breaking the fourth wall.
  • In this episode Stacy says she has to go to the eye doctor. She may have gotten glasses there, but this is still unknown.
  • There were people still inside the building when it was rotated.
  • This is the seventh episode that Phineas and Ferb come up with one of their Big Ideas after watching TV, after "Boyfriend From 27,000 B.C.", "Does This Duckbill Make Me Look Fat?", "Out of Toon ", "De Plane! De Plane! ", "What Do It Do?" and "The Secret of Success".
  • This is the second episode where Doofenshmirtz's invention targets the Moon. ("Oil on Candace")
  • This is Albert's third appearance. The first was "Not Phineas and Ferb", and his second appearance was in "Nerds of a Feather".
  • The spacesuit in "Out to Launch" was seen again, along with Isabella's own spacesuit.
  • The Giant Floating Baby Head makes another appearance.
  • This is the second time that Doofenshmirtz has attempted to rotate a large space body, the first time being in "Rollercoaster". This time, however, he actually succeeded, although his plan backfired.
  • This is also the second time that Doofenshmirtz says Dummkopf!. First was "Finding Mary McGuffin". "Dummkopf" is a common German insult that literally translates to "stupid head".
  • Even though Candace and Albert had met in this episode, Candace saw Albert with and without the telescope before ("Not Phineas and Ferb").
  • Fifth time Phineas and Ferb go into space ("Rollercoaster", "Out to Launch", "The Chronicles of Meap", "The Secret of Success")
  • Candace and Stacy talk about "thick nerdy glasses" in this episode. In "Flop Starz" and "Robot Rodeo", Candace wore glasses.
  • Second time a glass trap is broken by a high-pitched voice ("The Fast and the Phineas").
  • When Perry puts on the viking helmet, Wagner's "Ride of the Valkyries" can be heard.

Production Information

  • This episode first aired on the A Very Perry Christmas DVD.[1]
  • Premiered on July 19, 2010 in Latin America on Disney Channel entitled "El lado oscuro de la Luna" ("The Dark Side of the Moon"), in Spain was called "El Lado Doof de la Luna" ("The Doof Side of the Moon").
  • This episode aired on Verizon on Demand on October 1, 2010.
  • In Disney Channel Brazil, this episode was paired with "We Call it Maze".

International Premieres


  • Isabella's hard hat expands in size when she puts it on.
  • When Linda was pulling in, she should have seen the building from the driveway.
  • When Albert goes into the monorail to chase Irving, no one is sitting in the seats behind him. A few seconds later, Phineas and Ferb are shown sitting in the seats behind him.
  • Although Perry breaks the glass in the astronaut helmet, the glass is still on when he puts it on Doofenshmirtz. However, Doofenshmirtz said he had obtained numerous space helmets, so Perry could have grabbed one of the other ones.
  • When Doofenshmirtz is showing Perry the graph, when the green was zoomed in it's green. However, when it zooms out it is yellow.
  • Real space helmets are made from polycarbonate, so there's no way Perry could have shattered his trap with a high note.
  • Doofenshmirtz was rotating the Moon around, so the building should have just turned around rather than being lifted into space.
  • Perry's viking hat disappears when the space helmet breaks.
  • Albert mysteriously disappears when Phineas greets Linda.



  • The title is a parody of the phrase "The Dark Side of the Moon," referring to the side of the Moon that is never seen from Earth (as well as a famous 1973 album by Pink Floyd). The episode also originally aired just two weeks after "Wizard of Odd", which may be a reference to how many people believe that that Pink Floyd album complements the movie The Wizard of Oz when played together.
  • Neil Armstrong - Phineas says a line based on "That's one small step for [a] man, one giant leap for mankind," the first words spoken on the Moon by Neil Armstrong.
  • The statue that appears as part of the construction resembles a more modestly-dressed version of Sandro Botticelli's painting The Birth of Venus.
  • Irving said that Albert has "only two (nerd words) left". This refers to some magic creatures, like Genie from Aladdin, whom has the powers to grant wishes but limited to only three.
  • Dumbo - The elephants seen setting up during the construction of the building may refer to the elephants who assisted in the construction of the circus in this Disney movie.
  • The way the building is constructed may be a reference to a series of Grow tower games.
  • M.C. Escher - Phineas states having an M.C. Escher floor in the building.
  • Mister Rogers' Neighborhood - Linda tells Phineas and Ferb that they make Danville more interesting place "just by being you", which is something Mister Rogers often said on his television show.



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Video Games: Phineas and FerbPhineas and Ferb Ride AgainDisney Channel All Star PartyPhineas and Ferb: Across the 2nd DimensionAgent P Strikes BackPhineas and Ferb: Quest for Cool StuffWhere's My Perry?Disney Infinity (2.0) (3.0) • Phineas and Ferb: Day of DoofenshmirtzWhere's My Summer?Where's My Valentine?Where's My Holiday?
Albums: Phineas and FerbPhineas and Ferb Holiday FavoritesPhineas and Ferb: Across the 1st and 2nd DimensionsPhineas and Ferb: Star Wars soundtrack
Stage shows: Phineas and Ferb: The Best LIVE Tour Ever!

Disney Parks
Agent P's World Showcase Adventure

Entertainment: Phineas and Ferb's Rockin' Rollin' Dance Party
Firework: Celebrate the Magic Parade: Move It! Shake It! MousekeDance It! Street Party

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