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Elementary My Dear Stacy

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You hear that? Even in England my brothers have some scheme planned.
Candace Flynn

Elementary My Dear Stacy” is the second half of the 4th episode of the 2nd season of the American television series Phineas and Ferb. It originally aired on Disney Channel in United States on May 15, 2009. It was story by Jon Colton Barry, and directed by Zac Moncrief.

While in London, Candace and Stacy emulate Sherlock Holmes and Dr. Watson, while trying to bust Phineas and Ferb. Meanwhile, Perry must team up with British agent Double-0 0 in order to stop Dr. Doofenshmirtz from moving Big Ben to the Tri-State Area.

Plot summary

Candace and Stacy riding the London Eye

Candace and Stacy get off the water slide.

Still on vacation in London, the Flynn-Fletcher family is joined by Stacy. She and Candace stay up all night reading Sherlock Holmes stories, even though they originally mocked reading as something people did “before they invented fun.” The next morning, the adults take Phineas and Ferb along with Candace and Stacy to see the London Eye, a giant Ferris wheel.

Once the family leaves, Perry opens the face to the grandfather clock and zips down a chute into a comfortable arm chair, in what appears to be his lair while he is in London. After Agent P’s last mission in London, the Agency ran into some trouble with the British Spy Union. So, he is assigned a partner for today’s mission, Agent Double 0-0.

Grandpa Fletcher and Lawrence drop the rest of the family off at the London Eye and head off to the International Haggis Festival. Once there, Linda and Grandma Fletcher head off to explore downtown London, leaving the kids to wait in line for the ride by themselves. They split up further into 2 groups, with Phineas and Ferb together and Candace and Stacy together.

Candace figures that her brothers have some scheme planned even though they are in London. She believes that she might finally be able to bust them if she uses Holmes’ method of deduction. Even though Stacy would rather go shopping, she agrees to help her friend and takes on the role of Dr. Watson.

After trying to squeeze into Perry’s hover car, the two spies take Agent Double 0-0’s car. The British agent explains all the gadgets that his car is equipped with, and Perry inadvertently hits the ejector seat button, propelling Agent Double 0-0 out of the car. Once back inside, he asks Perry if he thought it was funny.

Candace and Stacy are walking through downtown London and Candace has bought a deerstalker hat and cape just like Sherlock Holmes usually wears, while Stacy has a bowler hat like that of Dr. Watson. Stacy gets distracted by window shopping in all the stores. Candace sees her brothers walk into an auto supply store and starts making several outrageous leaps in unlogicical thought as to what they could be doing.

The two agents arrive at Dr. Doofenshmirtz’s London lair underneath Big Ben. After making fun of Agent Double 0-0’s name, Doofenshmirtz reveals his plan to launch Big Ben into orbit and land it outside Doofenshmirtz Evil Incorporated’s main building so that he doesn’t have to look at his tiny watch. Agent Double 0-0 ridicules Doofenshmirtz’s plan, saying that he could just buy a bigger watch or a wall clock. The scientist feels launching the famous landmark into space is easier than going into a store and picking one of those out.

After talking to the auto supply store manager, Candace and Stacy follow the boys’ trail out back to find that they’ve picked up the free tires the store was offering. After chasing them around town and pulling Stacy out of several stores, Candace is close to figuring it out.

The boys drop a notebook while getting into a cab, and the girls pick it up. Half the page is missing, but it reads, “To Big Race 1600 Water S.” Candace deduces that they must be planning a big race at 1600 Water St. She calls her mom, but arrives at the address only to find the building is abandoned and Phineas and Ferb are nowhere to be found. She then remembers an old Holmes trick to use pencil lead to reveal impressions left on a piece of paper. Candace tries this and it reveals the note to read, “To Do Today: Big Ben Race To Thames 1600 for Water Slide Fun.”

Using his laser watch

Agent Double 0-0 slowly tries to escape.

Agent Double 0-0 is using his watch laser to open his and Agent P's traps. Since it is taking so long, Perry figures out that he can throw a nearby brick on the remote control and release the trap. Once free, Agent Double 0-0 climbs up through the inner workings of Big Ben to go undetected and surprise Doofenshmirtz. Agent P decides to take the elevator instead.

The girls arrive at Big Ben and find that Candace was right. They were making a water slide at Big Ben. It loops around the clock tower and the finish fires them off into the London Eye. As Phineas and Candace are discussing her method of deduction, the lift comes down and brings her up to the top and she is launched into the slide while she is on the phone to Linda. Stacy decides to voluntarily ride the slide, and Phineas hops on as the last customer of the day. They all land safely in the Ferris wheel.

Across the River Thames, Big Ben is starting to soar into the sky with the slide still wrapped around it. Stacy sees this and tries to show this to Candace, but ignores Stacy to see Linda coming. Doofenshmirtz is at the top of the tower basking in the glow of his success when Perry leaps up and knocks the remote for the rocket out of his hand and knocks the evil genius down the slide. All the stress on the structure breaks the slide apart and it falls into the river. Perry pushes the button and the clock tower floats back into place just in time for Linda not to see any of it. While returning home and seeing the girls, Ferb says he’ll never understand fashion.


End Credits

At 7:45 PM inside Big Ben, Double-0 0 is still trying to reach the ladder from the pendulum. He then manages to get out through a door under the hands of the Big Ben and looks at his clock to find out how much time he has been in there, but complains about his watch being too small.

Running Gags

The "Too Young" Line

Candace: Stacy.

Stacy: I'm working on it. Ah, he said they were here, they carried away some junk from out back, and aren't they a little young to be doing that?

Candace: Yes, yes they are.

Ferb's Line

Phineas: Looks like Candace and Stacy did some shopping.
Ferb: I'll never understand fashion.

What'cha doin'?


I know what we're gonna do today


Hey, where's Perry?

Phineas: Hey, where's Perry? Oh, there he is.

Perry's entrance to his lair

Goes down the Fletchers' grandfather clock to land in a lair beneath the Fletchers' house. It is furnished in a very traditional British style. He is soon joined by Agent Double 0-0.

Evil Jingle


Memorable Quotes

Candace: Ah, yes, reading. That's what they did before they invented fun.
Grandma: I heard that!

Double-0 0: You realize this man is a platypus?
Inspector Initials: They're American, Double-0 0. Just be glad it's a mammal.

Double-0 0: What, no files, no location, no contacts, what kind of mission is this?
Major Monogram: It was enough for the mammal.

Dr. Doofenshmirtz: Double-0 0? Isn't that just "triple 0"?

Double-0 0: No, that's not how you say it.
Dr. Doofenshmirtz: It spells "ooo", doesn't it?
Double-0 0: It's just "Double-0 0!
Dr. Doofenshmirtz: So if he's "p" and you're "ooo", together you spell...
Double-0 0: No, they're not O's, they're zeroes, all right?

Dr. Doofenshmirtz: I was just going to say "ooop"... looks like I struck a nerve there!

Candace: They've acquired a fleet of automobiles and they're in there buying a bunch of little air fresheners for them. OR they're buying motor oil for their giant robot! What do you think Stace? Stace?

Stacy returns to Candace with multiple shopping bags under her arms, Candace crosses her arms and glares

Stacy: What?

Candace: Who is the total king of busting?
Stacy: Sherlock Holmes?

Background Information

  • Based on Monogram's dialogue, this episode takes place immediately after "A Hard Day's Knight".
  • This episode reveals that Winifred Fletcher is a fan of Sherlock Holmes and has the complete collection of books.
  • This is the first episode where the Perry the Platypus side plot has a character with dialogue other than Doofenshmirtz, Monogram or Carl (Agent 0-0).
  • Once again Stacy has a hard time focusing on busting Phineas and Ferb ("Put That Putter Away").
  • The first person to be shown going up the water slide is the boy in the commercial of Bust 'Em ("Leave the Busting to Us!").
  • Candace and Stacy appears wearing the Sherlock Holmes and Watson Outfit ("Toy to the World").
  • Candace mentions "motor oil for [a] giant robot" ("Traffic Cam Caper").
  • Second time Perry enters into his lair and it's different ("Day of the Living Gelatin").
  • Double 0-0 makes an appearance ("It's About Time!")

Production Information

  • A sneak peek was shown on Disney Channel.


  • Even though it seems to take place during the same vacation to England as "A Hard Day's Knight", it is unclear how Stacy arrived in England, as she was not with the family in that episode.
  • When Stacy points to Candace that Phineas and Ferb have borrowed tires from the auto parts store, the sign says "Free Tires". The episode is set in the UK, therefore it should say the British spelling "tyres" making the sign say "Free Tyres". However, the US spelling is probably used to avoid confusion.
  • The London Eye stops in the episode, but in real life the London Eye never stops rotating.
  • When Candace is deducing the message, she says "Fun" before she finds the impression.
  • Phineas and Ferb open the door of the London Eye to get to the ground, but when they walk off-screen, the door is closed.
  • Ferb's mouth doesn't move when he begins to talk BEFORE walking off-screen.
  • Agent Double 0-0's watch laser makes a hole in his trousers, which disappears in the next scene and for the rest of the episode.
  • Candace and Stacy are surrounded by several piles of books after reading the "whole [Sherlock Holmes] collection." However, Holmes' creator, Sir Arthur Conan Doyle, wrote only four novels and 56 short stories starring the detective. It's possible that Winifred Fletcher, being a big fan, also collected later, "unofficial" Holmes books by other authors.
  • When Big Ben returns to its launch pad, the displayed time is certainly not 4:15.
  • When Ferb goes down the waterslide and into Big Ben he is alone with an official timesman. And Phineas is in a different shuttle. Yet, they come down together and the timesman is not with them.
  • Agent Double 0-0's Watch laser is on his left hand during the scene where he and Perry are trapped, but when he looks at it in the end scene, he looks at his right hand.



  • During the sunrise scene, the opening music of Peggle can be heard.
  • Shortly after Stacy returns from a quick shopping trip, when 2 brief scenes of Big Ben is shown, part of the British patriotic song "Rule, Britannia!" is played.

Sherlock Holmes

  • Candace imitates the great detective quite a bit during this episode, including wearing the clothing most commonly associated with Sherlock Holmes: the deerstalker hat and cape featured in Sydney Paget's illustrations for Strand Magazine.
  • Candace designates Stacy as Watson, Sherlock Holmes' most trusted companion. which has helped him in all of his most fascinating cases.
  • "Elementary, my dear Watson" The episode title comes from the famous phrase which was not actually said by Sherlock Holmes in any of the Sir Arthur Conan Doyle works. The line "Elementary, my dear Watson" was either first said in the 1929 movie The Return of Sherlock Holmes or in the 1899 stage production Sherlock Holmes.[1]
  • Someone dressed as Dr. Watson is seen going up an esculator

James Bond

  • Agent Double 0-0 is a very direct parody of James Bond.
  • Inspector Initials is a parody of Bond's boss, M, as the character is currently being portrayed by Dame Judi Dench.
  • Double 0-0's laser watch is similar to many gadgets that Bond has been equipped with over the years, most directly the laser watch featured in 1995's Goldeneye.
  • The ejection seat on Double 0-0's Aston Martin is borrowed from Goldfinger. However, it was the passenger seat that had the ejection seat, not the driver. As Perry is sitting in the passenger seat, he should have been the one ejected, not Double 0-0. It's possible this was a deliberate goof.
  • When Perry and Agent Double 0-0 are captured by Dr. Doofenshmirtz, they are under the ejection port of the Big Ben rocket, just like James Bond and Dr. Holly Goodhead were in Moonraker.


  1. Snopes article on the phrase "Elementary, my dear Watson".


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Animated Productions: Phineas and Ferb | Videography | Take Two with Phineas and Ferb (Episode list) | Phineas and Ferb The Movie: Across the 2nd Dimension | Feature film
Video Games: Phineas and Ferb | Phineas and Ferb Ride Again | Disney Channel All Star Party | Phineas and Ferb: Across the 2nd Dimension | Agent P Strikes Back | Phineas and Ferb: Quest for Cool Stuff | Where's My Perry? | Disney INFINITY (2.0) (3.0) | Phineas and Ferb: Day of Doofenshmirtz
Albums: Phineas and Ferb | Phineas and Ferb Holiday Favorites | Phineas and Ferb: Across the 1st and 2nd Dimensions | Phineas and Ferb: Star Wars soundtrack

Disney Parks

Agent P's World Showcase Adventure | Celebrate the Magic | Phineas and Ferb's Rockin' Rollin' Dance Party


Major Characters: Phineas Flynn | Ferb Fletcher | Candace Flynn | Perry | Major Francis Monogram | Heinz Doofenshmirtz | Linda Flynn | Lawrence Fletcher
Secondary Characters: Isabella Garcia-Shapiro | Baljeet Tjinder | Buford Van Stomm | Jeremy Johnson | Carl Karl | Stacy Hirano | Ginger Hirano | Milly | Katie | Holly | Adyson Sweetwater | Gretchen
Recurring characters: Giant Floating Baby Head | Django Brown | Coltrane | Charlene Doofenshmirtz | Vanessa Doofenshmirtz | Roger Doofenshmirtz | Vivian Garcia-Shapiro | Irving | Jenny Brown | Suzy Johnson | Danny | Bobbi Fabulous | Sherman | Meap | Mitch | Norm | Clyde Flynn | Betty Jo Flynn | Pinky | Albert | Peter | Klimpaloon | Talking Zebra | Monty Monogram | Hildegard Johnson | Reginald Fletcher | Winifred Fletcher | Aloyse von Roddenstein
Minor Characters: Jerry | Khaka Peu Peu | The Regurgitator | Bob Webber | Princess Baldegunde | Melissa | Unnamed Fireside Girls | Agent E | Brobots | Drill Sergeant | Buck Buckerson | Tiana Webber | Jack Johnson | Mrs. Johnson | Wendy | Eliza Fletcher | Nicolette | Mandy | Thaddeus and Thor | Mindy | Amanda | Lucy Fletcher | Adrian Fletcher | Beppo Brown | Dr. Hirano | Annabelle Johnson | Sara | Brigitte, Josette, and Collette | Mishti Patel | Liam McCracken | Rodrigo | Morg | Glenda Wilkins | Dr. Gevaarlijk | Heinz Doofenshmirtz's mother | Blanca Dishon | Professor Poofenplotz | Lyla Lolliberry | Balloony
Guest Characters: Santa Claus | Kim Possible | Pinocchio | Baby Baboon | Thor Odinson | Spider-Man | Hulk | Iron Man | Red Skull | Nick Fury | Venom | Whiplash | MODOK


Organization Without a Cool Acronym | Fireside Girls | League Of Villainous Evildoers Maniacally United For Frightening Investments in Naughtiness | Love Handel | Canadian Organization Without a Cool Acronym


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


Locations at or near Danville: Danville | Mr. Slushy Franchise | Doofenshmirtz Evil Incorporated | Flynn-Fletcher House | Atlantis | Googolplex Mall | Old Abandoned Amusement Park
Other Locations: Africa | England | New York | Big Ben | Mars | Tokyo | London | China | India | Canada | Chile

Selected songs

Today is Gonna Be a Great Day | Summer Belongs to You | City of Love | Jump Right In | Let it Snow, Let it Snow, Let it Snow | Perry the Platypus Theme | Gitchee Gitchee Goo| | Where Did We Go Wrong? | Busted | Little Brothers | What'cha Doin? | Carpe Diem | S.I.M.P. (Squirrels In My Pants) | I'm Me | Rollercoaster | The Ballad of Klimpaloon | Evil for Extra Credit | Backyard Beach | Happy New Year | Great to Be a Baby | Serious Fun

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