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"Love at First Byte" is the first half of the fourteenth episode of season four of Phineas and Ferb.


When Mom becomes overwhelmed with organizing a block party, she asks Phineas and Ferb for their help in making the party's finale memorable. Meanwhile, Candace plans to bust her brothers, but their team up with Mom throws a bit of a wrench into her situation. Over at the block party, Doofenshmirtz tries to set Norm up with a female robot, but Norm's nerves get the best of him.


Linda is trying to set up a block party, and she tells the boys that she is overwhelmed with all the work she has to do. Phineas and Ferb think of ideas for the party finale, and they decide on a laser light show. Linda then gives them a list of companies that do light shows, but Phineas decides that they should just build it themselves instead. Lawrence then arrives dressed up as a Mardi Gras jester, or a "sock puppet" as most think; he explains that he is the DJ for the block party, and wonders where Perry is.

Major Monogram informs Perry about his mission, which involves the block party. He states that Doofenshmirtz is attending the party, reportedly "for the fun of it", and Agent P has to make sure that he isn't doing evil. However, he has to be in disguise because he is so close to his host family, and ends up dressing as a balloon version of himself. Candace, in her room, wants to bust the boys, but they haven't done anything bustable all day. However, Stacy promptly points out a robotic insect that Phineas and Ferb have made. Candace immediately goes out and asks Phineas what they're doing, and he explains that they are making the laser light show for the finale. Candace heads straight into the house after learning about their project and yells for Linda.

At Doofenshmirtz Evil Incorporated, Doofenhsmirtz and Norm have plans to go to the block party, but Norm doesn't want to go because he doesn't have a date. Doof gives Norm advice to go stag, clarifying that he does not mean for Norm to dress as a wild forest animal. Norm is still disappointed, but Doof tells him that he might meet a nice popcorn machine or blender. Norm then agrees to go. Phineas and Ferb show Isabella, Buford, and Baljeet the P.H.L.A.S.E.R, the machine that will create the laser light show for the party. While Phineas goes to get some towels to polish the lenses, Candace sits in a lawn chair, muttering to herself how the situation is "unbustable". Stacy then drags Candace away. Perry, still in disguise, bounces across some port-a-potties and lands in a balloon booth, where he starts to spy on Doofenshmirtz.

Doof is helping Norm be smooth in order to ask out a popcorn machine, but a cotton candy cart rolls up, and Doof says that someone else has gotten her. Norm sighs, but then lights up when he sees a female robot, Chloe, through the crowd. Doof realizes that Norm has his eye on her and convinces Norm to make his move by asking what her sign is. He goes up to introduce himself, but upon Chloe's response (Pisces), returns to Doof as he doesn't know what to say next. Doof reveals that Charlene was a Pisces, and remarks that the two robots could well end up marrying and then slowly divorcing over the years. He then tell Norm what to do next. Balthazar Horowitz walks up to Perry but Perry shushes him and makes him a balloon fedora so he can keep his cover. Major Monogram contacts Perry over the wrist beacon but Perry notices that Major Monogram is right behind him with an ice cream cone. Major Monogram awkwardly signs off and yells at Carl for not telling him that Agent P was right there.

Norm walks up to Chloe and after an awkward conversation ends up challenging her to a dance off. He walks back to Doof and Doof tells Norm to try to get out of his own head, Norm isn't sure how to do that and Doof pushes Norm out to the dance floor. Up on stage, Lawrence turns on the music and Norm and Chloe dance. At the end of the song, Norm's head flies off and lands on the Phlaser, shorting it out and activating the grand finale prematurely. Isabella and the Fireside Girls hand out safety glasses to protect people from the light. A stream of multi-color light streams come out of the exploding P.H.L.A.S.E.R. as the crowd stares in awe. The show ends and Norm's head falls back on to his body, upside-down.

Norm and Chloe hold hands and Doof arrives to congratulate Norm for being "Smoothtastic". Rodney suddenly appears and pulls Chloe away from Norm for hanging out with that "Rustbed Romeo". Doof tries to yell back at Rodney, but can't think of an insult. Norm and Chloe say their goodbyes, quoting from Romeo and Juliet, and Doof tells Norm that he didn't need Chloe anyway. Linda comes to thank the boys, but then "busts" them for leaving her guest towels dirty and all over the ground. Candace complains that out of all the things Phineas and Ferb have done this summer, she is upset about this. Linda then tells the boys to clean up and goes to make dinner, leaving Candace frustrated.




  • When Linda was talking to Candace in the beginning, the bottom of her arm is pink.
  • Even though Doofenshmirtz attends the block party, he states he hates Mardi Gras according to "Phineas and Ferb Christmas Vacation!".
  • Mardi Gras is usually celebrated in February, not in the summer.


  • Balthazar Horowitz is seen without his hat on for the first time.
  • For the first time, Linda legitimately "busts" Phineas and Ferb all by herself.
  • This episode also marks the last episode in which Phineas and Ferb get busted.
  • Dan and Swampy's lookalikes have a cameo.
  • Monogram tells Perry to Laissez le bon temps rouler, which is "Let the good times roll" in French, a phrase often associated with Mardi Gras.
  • The title is a play on this common trope Love at first sight. It also parodies the title of the Susan St. James-George Hamilton 1979 film Love at First Bite as well as the title of episodes of The Facts of Life, Small Wonder and Hurricanes and the 2000 book by Christine Harris.


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Animated Productions: Phineas and FerbVideographyTake Two with Phineas and FerbPhineas and Ferb the Movie: Across the 2nd DimensionPhineas and Ferb the Movie: Candace Against the UniverseChibi Tiny Tales

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?
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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