Phineas and Ferb Wiki
Phineas and Ferb Wiki

Good luck, Agent Carl!

— Major Monogram

Phineas and Ferb create a device to reverse the effects of gravity. Meanwhile, Major Monogram believes the boys are out to destroy the tri-state area, so he sends Carl to the Flynn-Fletcher house to investigate, while Agent P is literally sent on a wild goose chase to find a long-lost agent. Elsewhere, Doofenshmirtz finds the blueprints to Phineas and Ferb's anti-gravity machine and takes them for his own evil purposes.

Episode Summary

The episode starts when an apple falls on top of Phineas and Ferb's heads; Phineas talks about gravity and wonder if they can turn it around. Candace comes asking what they are doing and Phineas says they wonder if they can defy gravity. Candace tells it's impossible since it's a Universal Law, just like not wearing white after Labor Day. Phineas states that it's despotism for an Absolute Law with no hope of appeal, and suddenly knows what to do today and wonders where Perry is. Candace points out that he was beside them, and Phineas says he didn't see him.

At the O.W.C.A., Carl was updating his status report on his website when Major Monogram conducts his evaluation form and shows Carl that he has gold stars at Studious and Hygiene but not at Initiative. He needs to show more. Carl pleads to Monogram to make it and is given 24 hours to show Initiative before Monogram has to submit his evaluation. To do this, Carl decides to check any suspicious activity on the internet.

At Phineas and Ferb's house, they send their blueprint for an Anti-Gravity Fun Launcher to their website so that Baljeet can check it. He calls them to say that it is 97% complete, but makes a minor adjustment to make it perfect and tries to joke about it.

At Doofenshmirtz Evil Incorporated, Doofenshmirtz was bored and has no idea what to do. Norm asks him about the jigsaw puzzle, but Doofenshmirtz stated that without the cover box he can't finish it. Norm then asks him about finishing his Popsicle-stick bride, but Doofenshmirtz says that until the blue dye is out of his system he can't finish it, either. Norm then kisses his Popsicle-stick bride, to which Doofenshmirtz describes Norm a "sick, sick robot". Since Doofenshmirtz needs an evil scheme but is not in a mood to create one, he decides to steal an idea from a blueprint off the internet. He then stumbles on Phineas and Ferb's Anti-Gravity Fun Launcher, downloads it and renames it as Anti-Gravity Evil Launchinator. He's not sure what to do with it and waits until something come to his mind.

At the O.W.C.A, Carl gets a transmission that Doofenshmirtz downloaded something off the internet. Carl runs the words Anti-Gravity Fun Launcher into the Anagram Decoder and calls Major Monogram about it and says "Evil Fanatic Hunt R Raygun". When they check the source it shows it's from Phineas and Ferb, and Carl thinks that they work for Doofenshmirtz. Major Monogram thinks it's impossible but when Carl plays Phineas' voice by playing it backward and adjusting the syllables, they think that the boys' plan is to help Doofenshmirtz to destroy the Tri-State Area. They decide to keep an eye on them, but first Major Monogram sends Agent P to find a missing agent, codename Agent G, and gives him some locations in Iceland, Monte Carlo, Burbank, California and on the Moon. As Agent P leaves, Carl ask who Agent G is. Monogram states that is Gary the Gander (or Goose) and this is all a wild goose chase to distract Agent P, since he's too close to Phineas and Ferb. Carl asks who will investigate them, but Monogram says since that every agent is on a mission, he decides to choose Carl. After trying on different costumes, Carl is dispatched to his mission.

In the backyard, Phineas and Ferb, along with Isabella and Baljeet, are already building the Anti-Gravity Fun Launcher, when Phineas wonders where Perry is. Meanwhile, Agent P is climbing some snowy mountain to search for Agent G.

Carl arrives at the backyard, where Major Monogram tells him to observe and infiltrate them. Isabella asks who the guy at the fence is, then Phineas asks Carl who he is. Carl tries to think some other name, but accidentally says his own name. Phineas welcomes him and asks if he can help and Carl agrees. He started to question each of them while constructing the Anti-Gravity Fun Launcher.

After finishing the Anti-Gravity Fun Launcher, they try to decide who goes first and Isabella insists that Carl should go first. Carl goes in and activates the Anti-Gravity Fun Launcher, then everyone joins in. Carl asks if this has to do anything evil, but Phineas states that this is all for fun. Carl, along with the kids, are having fun when Candace sees them flying in mid-air and decides to find her Mom immediately. Meanwhile, Monogram tries to contact Carl, but just hears him screaming. Thinking that the intern is being tortured, Monogram quickly declares an emergency.

Outside at Doofenshmirtz Evil Incorporated, Doofenshmirtz thanks Norm for helping him and is happy that the Anti-Gravity Evil Launchinator runs on solar power. Unfortunately, a police officer gives him a ticket for parking the Anti-Gravity Evil Launchinator in a no parking zone and then quickly tows away his device. He chases after it.

At Monte Carlo, Agent P is playing blackjack with a guy, until he shows the picture of Gary the Gander. After the guy says he knows nothing, Agent P attacks and interrogates him.

After having fun in the Anti-Gravity Fun Launcher, the kids meet Major Monogram acting as Carl's father. Monogram asks Carl what he's doing since he never came "home." Carl plays along as his son, telling his "dad" he was having fun with his new friends, and whispers to him that the situation is neutralized. Major Monogram quickly calls his men to abort the mission and leave the area. Monogram tells Carl that they should go home now, and says goodbye to the kids. After Monogram and Carl left, Phineas says he's a nice kid and tells everyone to race inside the house that the loser will clean up the Anti-Gravity Fun Launcher.

Meanwhile, Doofenshmirtz tries to catch his Anti-Gravity Evil Launchinator but trips over a can after seeing another Anti-Gravity Evil Launchinator; he decides to call Norm to come and pick it up.

In California, Agent P was a special guest on a TV show and his face was pixelated to cover his identity. Agent P shows the picture of Agent G and the host tells the viewers if that they sees Agent G they should call in immediately. Agent P quickly picks up the call and runs off while the host tells him that he forget his pixelation.

Back at Doofenshmirtz, he watches as Norm picks up the Anti-Gravity Fun Launcher and states he didn't know Norm could do that. Norm shows him that he can transform into a vehicle as well, to which Doofenshmirtz responds that he should read his instruction manual and Norm says he should. As they leave, Candace, along with her Mom, arrives at their home, telling her about the Anti-Gravity Fun Launcher. Candace is surprised that it is gone, but Linda doesn't find it surprising, flatly replying "That's a shocker".

Doofenshmirtz congratulates Norm and tells him that he's gonna finish his Popsicle-stick bride. However, they are then stopped by the police officer who this time gives Doofenshmirtz a ticket for driving a robot with more than two axles without a license. The officer then tows Norm away, while Doofenshmirtz curses the Motor-vehicle Code.

Back at O.W.C.A, Monogram is so proud of Carl for his effort that he gives him a gold star in Initiative on his evaluation report. Perry suddenly arrives in a space suit and Major Monogram apologizes to him about the wild goose chase also, since they can't find Agent G because he was gone for too long. Agent P shows them Agent G, that he was on vacation. Monogram decides that Agent P deserves the vacation, but since evil never rests, that he will be back tomorrow. Monogram salutes him. After an awkward silence, Major Monogram comments that his arm is getting tired and Agent P is not saluting back.


Read the transcript of Undercover Carl.



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Running Gags

I know what we're gonna do today!/Hey, where's Perry?

Phineas: An absolute law without hope for appeal? That's despotism! Somebody ought to— (snap) Hey! That's it! I know what we're gonna do today! Hey, where's Perry?

Candace: Right here!

Phineas: Oh, I didn't see him there.
Carl: But, wait, listen to this. It's a seemingly innocent voice recording of Phineas.

Phineas: (on recording) Ferb, I know what we're gonna do today!
Carl: But if we play all those syllables backwards in a random order, we get...

Phineas: let'S helP doofenshmirtZ tO destroY thE trI-statE areA.
Phineas: Okay, now where's Perry?

The "Too Young" Line

Doofenshmirtz: Wow, I should really read your instruction book.
Norm: Yes, yes you should.

Ferb's Line

Carl: So Ferb, you don't talk much, do you?

Ferb: Actually I—

Carl: What's that over there?
Major Monogram: Hello, son.
Phineas, Ferb, Baljeet and Isabella: Hi Carl's dad.

What'cha doin'?


Perry's entrance to his lair


Oh, there you are, Perry

Major Monogram: Oh, there you are, Agent P. Sorry about the wild goose chase.

Evil Jingle

Doofenshmirtz Evil Incorporated!

Memorable Quotes

Candace: It's a universal law, just like no wearing white after Labor Day.
Norm: Why must I be alone?
Dr. Doofenshmirtz: I dunno, why are raspberry icicle pops blue?
Carl: But wait listen to this. It's a seemingly innocent voice recording of Phineas.

Phineas: Ferb, I know what we're gonna do today.
Carl: But if you play all those syllables backwards in a random order you get.

Phineas: (Barely coherent) Let's help Doofenshmirtz destroy the Tri-State Area.
Carl: So who is Agent G, sir?
Major Monogram: Gary the Gander? Oh, that's just a wild goose chase!
Carl: So, I hear that you're the math genius behind the operation.

Baljeet: Oh, no-no-no-no. Phineas and Ferb's blueprint was already brilliant. I made a minor modification.

Carl: Interesting.
Talk Show Host: Hey, buddy, you forgot your pixelation!
Major Monogram: Carl! Carl! Oh no, they must be torturing that poor kid. Don't worry little unpaid intern, help is on the way!
Heinz Doofenshmirtz: Curse you, motor vehicle code!
Major Monogram: What the— Agent G? On an extended vacation, hmm? Well, Agent P deserves a vacation more than you do. He deserves one but evil never rests SO we'll see you tomorrow, Agent P!

(Monogram salutes, but Perry keeps staring at him without doing anything)
Well, this is getting awkward.

Carl, my arm is getting tired and he won't salute back.

Background Information

  • It is revealed that Norm has a Popsicle-stick bride that Doofenshmirtz made for him to keep him company.
  • This is one of the few episodes that Perry does not meet Doofenshmirtz in, nor does Heinz question his absense.
  • Candace only appears three times in the episode.
  • Linda makes a cameo in this episode.
  • Norm can extend his robotic limb and can transform into a truck, specifically an early 1960's Chevrolet Corvair 95 pickup with dual-rear axles.
  • Carl was dressed as an Egyptian pharaoh, Scotsman, singer in a barbershop quartet, bed sheet ghost, wearing a sweatshirt, a referee, "a cheerleader", pirate, a Superman spoof, a fireman, a doctor, a golfer, "wearing a pinafore" (similar to Isabella's), a hippie, Dr. Coconut, a basketball player, a British Foot Guard, "in his pyjamas", a gorilla, a Mexican wrestler, a skier, a vampire, "a guy from the Civil War", a karate master, "a cowboy", a sailor, a police officer, a biker, a native American Indian, "an old steel worker", a Roman soldier, a lifeguard, a samurai, a caveman, a belly dancer, "the lead in a '40s tearjerker", a ballerina, a clown, a jester, Doofenshmirtz, Perry, a to-scale rabbit, a bag over his head, an octopus, a Christmas tree, and his kid disguise he wears in the rest of the episode.
  • Buford did not appear in this episode, although the other kids did.
  • Monogram says "Oh, there you are, Perry" instead of Phineas in this episode.
  • The helicopters seen surrounding the Flynn-Fletcher house when Monogram announces "Abort Mission" appear to resemble Sikorsky UH-60 Blackhawks

Production Information

To be placed

International Premieres

  • January 28, 2010 (Disney Channel Latin America)
  • February 13, 2010 (Disney Channel Brazil)
  • April 17, 2010 (Disney XD Spain)
  • May 9, 2010 (Disney Channel Spain / Disney XD Netherlands)
  • June 3, 2010 (Disney Channel Scandinavia)
  • August 16, 2010 (Disney Channel Portugal)


  • Doofenshmirtz's tongue starts off as blue, but then it stays red for the rest of the episode.
  • When the truck takes away the launchinator it was still gray but when Doofenshmirtz was running past the Flynn-Fletcher house, the -inator was red.
  • When Major Monogram shows Perry the map about possible whereabouts of Agent G, if examined closely on the map, Guatemala is not colored, France, Germany, Belgium, and Netherlands all do not have border lines, and English Strait is missing.
  • When Carl gets thrown the frisbee, he throws the frisbee; yet, in the next scene, the frisbee is gone.
  • It is impossible for Carl to disguise himself as a bunny because the bunny is so small, but it could be possible it's a robot or a bunny named Carl.
  • When Perry is wearing his spacesuit, his eyes are blue instead of brown.
  • Carl's cap/head went through Phineas and Ferb when their levitating.
  • When Doofenshmirtz says that the invention is now his (because he changed the name), he shows the blueprint to the audience. He flips it, so the blueprint should've been upside down when he looked at it.
  • Carl's communication watch appears and disappears throughout the episode.
  • When Major Monogram says "abort mission" as the ambush troops leaves the house, the tree has moved closer to the house.
  • When Phineas is having a communication with Baljeet via telephone Ferb's button on his clothes disappears.
  • Carl's recording of Phineas has him saying, "Ferb, I know what we're gonna do today", but Phineas did not say "Ferb" before it.




  • I Dream of Jeannie/Village People - Carl wears the 6 costumes of the Village People in sequence and Barbara Eden's costume in the I Dream of Jeannie TV series.
  • Transformers - When Norm transforms into a truck, it's an allusion to the commonly known Hasbro Transformers franchise.
  • Facebook/Twitter - Carl is updating his status like many people do on Facebook and Twitter.
  • Isaac Newton - When apple falls onto Phineas and Ferb, it makes them wonder them about gravity.
  • The Tonight Show - The talk show in Burbank, California is similar to the style of The Tonight Show.
  • Club Penguin - The "missing agent", Gary the Gander, has the same name as a main character penguin, Gary the Gadget Guy, who also works with an elite spy organization, where he is also known as Agent G.
  • Casino Royale - Agent P's stop at Monte Carlo features a game of Baccarat and background music in the style of the James Bond movies.
  • Pac-Man - When Phineas sprays cheese in the air, Ferb eats it just like Pac-Man eats the Pac-Dots.
  • American Dad! - When Carl dressed in a different disguise in song is very similar to Roger's disguises from American Dad!.
  • Frankenstein - Norm's unfinished popsicle stick girlfriend could possibly be a reference to Mary Shelley's novel Frankenstein. In the book, the monster requests that Victor Frankenstein build him a wife.
  • Apollo XVII - Monogram uses the famous shot of earth taken during the 1972 final manned lunar mission as a possible place to look for Agent G.



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