Phineas and Ferb: Season 3

Phineas and Ferb's newest invention is a pair of boots that makes the wearer extraordinarily fast, and Candace decides to use them so that she can be in two places at once: Jeremy's family picnic and a children's reading session at the library, but things go haywire when she accidentally uses unstable prototypes of the boots. Meanwhile, Doofenshmirtz's building is put up for sale, so he tries to convince a prospective buyer, Annabelle, who turns out to be a long-lost relative of the Johnson fami

When bad weather spoils Isabella's plan for the Fireside Girls to earn an accomplishment patch, Phineas and Ferb build a huge biodome capable of controlling its own weather to help her and her troop. Meanwhile, Candace uses the invention to figure out what Jeremy likes about her. Elsewhere, unbeknownst to everyone, the rain is caused by Doofenshmirtz's "Rain-inator", which he uses to cancel a soccer game and watch his Spanish soap opera without interruptions. Candace realizes she has not been sp

Phineas and Ferb decide to celebrate the Danville Harbor Day Festival by building a mechanical version of the historically elusive shark of Danville Harbor. Candace, eager to bust her brothers, enlists the help of a man named Captain Squint and his ship to capture the shark and show it to Linda. Meanwhile, Doofenshmirtz invents the "Salt Water Taffy-inator," planning to sell saltwater taffy to give tooth decay to all the children in the Tri-State Area. Phineas and Ferb are inspired by a forgotte

While visiting their grandparents, the kids decide to create and race a giant hot air balloon. Meanwhile, Candace is inspired by train engineer Glenda's can-do attitude and decides to "give up" on busting her brothers. On the other side of town, Dr. Doofenshmirtz finds a Dodo bird egg and is convinced that it is a fierce bird-monster that can help him take over the Tri-state area, but discovers the exact opposite when the egg hatches.

When Candace discovers that Phineas and Ferb have invented a computer that can answer anything, she asks it how she can finally bust her brothers. Meanwhile, Doofenshmirtz loses the key to his latest invention, the "All Purpose-inator," and Perry must find it before he does. It is Doofenshmirtz and Perry's 100th battle, and O.W.C.A. has set up cameras all over Doofenshmirtz Evil Incorporated to capture the moment. Unbeknownst to both Doofenshmirtz and O.W.C.A., Perry has been accidentally switch

Candace asks Phineas and Ferb for help after losing her phone for the fifth time. Unbeknownst to her, the phone they invent includes a voice-activated transfer app that accidentally sends her to Easter Island. Meanwhile, Doofenshmirtz creates a "Pick 'Em Up-inator" to pick up Vanessa from school so he can enjoy his exercise show. While downstairs, he discovers the original prototype of Norm's head, which has a strong affinity for sarcasm. Guest star: Joel McHale as original Norm head Inspired by

After a botched haircut, Candace asks Phineas and Ferb for help, and they build a hair-growing machine to fix it before the Endangered Animal Benefit with Jeremy and his mother. However, when she cranks it to max power, her hair grows out of control, causing her to be mistaken for a rare tangerine orangutan. Meanwhile, Doofenshmirtz assembles a "Very, Very Bad-inator" from parts of his old inventions. Linda joins celebrity chef Jamie Oliver as a judge for Danville's Meatloaf Festival Cook-off. M

In the Stone Age, Phineas and Ferb are reimagined as cave kids, Phinnebunk and Gerb, who set out to invent the wheel, much to the annoyance of Cantok (Candace). Meanwhile, Bunka (Perry) must stop Doofengung (Doofenshmirtz) from using his Stick-inator to provoke mammoths into destroying (Ro-juh) Roger's home. In ancient feudal China, Princess Isabella rules under the guidance of Regent Monogram, while Master Perry has abandoned the way of the warrior. When Doofus Khan's forces capture the Princes

When Linda wants to spend the day with her, Candace insists on staying in the backyard to finally bust her brothers. However, Phineas and Ferb's only plan, after being zapped by Doofenshmirtz's "Dull and Boring-inator", is to watch grass grow. Meanwhile, Perry teams up with Doofenshmirtz to rebuild the device into a "Dynamic-inator" to restore the boys' creativity. When Doofenshmirtz believes Vanessa overheard him say he would rather have a son to do his evil bidding, he feels guilty and plans t

After Candace hurt her leg and is stuck in bed, she grows increasingly frustrated trying to get Linda's attention to bust Phineas and Ferb for attempting to communicate with astronauts. Meanwhile, Perry must stop Doofenshmirtz from flooding a deli with chicken soup. On the last day of the Flynn-Fletcher family road trip, Candace hopes for a few peaceful hours without having to worry about busting her brothers. However, when Phineas and Ferb build a "No-Stop Truck Stop" diner on top of the rented

Phineas, Ferb, and their friends turn Danville into a giant version of Candace's favorite childhood board game, Skiddley Whiffers. Meanwhile, Doofenshmirtz struggles with Vanessa growing up and seeking independence. After dropping her off on a camping trip with friends, he secretly follows her, disguised as a camper—with Perry's help, hoping to keep her safe from afar. When Baljeet reveals that he comes from a long line of bicycle race losers, Phineas and Ferb recruit cyclist Greg LeMond to host

When Ferb's cousins visit from England and challenge him to a soccer match, Phineas and Ferb alter the laws of physics to build a high-tech 3D stadium. Meanwhile, convinced that her relationship with Jeremy depends on being more proper, Candace enlists her step-cousin, Eliza, to teach her the rules of etiquette. Meanwhile, Doofenshmirtz, sick on the couch, forces himself to activate his "If-a-Tree-Fell-in-the-Forest-inator," causing every tree, and anything else its beam hits, to say his name wh

Perry is chosen as the spokesanimal for Totally Tools, risking his secret agent life. Sergei the Snail takes over to stop Doofenshmirtz, who plans to prank the townsfolk with his "Mustache-inator". Meanwhile, Candace attends a retreat to control her obsession with busting Phineas and Ferb. Phineas and Ferb create giant-sized dartboards and darts for a game, while Linda works on a junk sculpture for an auction. Candace, determined to bust the boys, mistakes the sculpture for one of their projects

On Halloween night, Phineas, Ferb, Candace, and their friends visit a haunted house, where they meet a strange boy named Russell who believes his home is haunted. Meanwhile, Doofenshmirtz's attempt to transfer his mind into a cow to destroy all the grass in the Tri-State Area backfires, transforming him into a terrifying "were-cow" that wreaks havoc whenever there is a full moon. Candace becomes convinced she is turning into a vampire after watching a popular vampire movie with Stacy and getting

Phineas and Ferb build a giant, computer-controlled tower to become expert escape artists, but it malfunctions after being struck by one of Doofenshmirtz's inventions. Meanwhile, Doofenshmirtz tries to sabotage his brother Roger's meeting with a foreign dignitary, but his plans accidentally disrupt Phineas and Ferb's project instead. In a special "backwards episode" told in reverse order, Phineas and Ferb create Cheese-topia, a giant cheese-themed amusement park. Meanwhile, Doofenshmirtz uses hi

Phineas and Ferb invent a new language, Ferb Latin, which quickly becomes popular. Meanwhile, Doofenshmirtz uses propaganda in an attempt to make everyone do his bidding. Phineas and Ferb's attempt to clone potatoes goes awry, leading to an infestation of mischievous potato gremlins. Meanwhile, Doofenshmirtz tries to use a machine to summon the Spartan Army to help him take over the Tri-State Area, but accidentally summons the Mongol Army instead.

To take their minds off the hot weather, Phineas and Ferb decide to celebrate the holidays early by putting on a traditional family Christmas special. Meanwhile, when Doofenshmirtz sees the special on TV, he tries to hastily cram his Christmas shopping into one day. Guest star: Kelly Clarkson as herself

When Phineas and Ferb learn that Crikey the Crocodile, former star of Little Crikey the Crocodile, has gone missing, they set out to find him and return him to the Danville Nature Preserve. Meanwhile, Candace discovers that Irving has compiled a digital scrapbook of all of Phineas and Ferb's wild inventions and pesters him to use it as evidence to finally bust them. Elsewhere, Doofenshmirtz plots to embarrass his brother by using a "Chicken-Replace-inator" to swap Roger's mayoral award with the

When Phineas and Ferb cannot find Perry, they decide to build a Perrytronic 3000 to fill in for his absence. Meanwhile, Candace tries out a new strategy called B.B. (Busy Bee) Busting in an effort to stop the boys from finishing their project before Linda comes home. Elsewhere, Doofenshmirtz creates a "Duplicator-inator" to duplicate his head and make himself twice as smart. As Fall approaches, Phineas and Ferb create "S'Fall," a vibrant world filled with giant leaf piles and gourds. Meanwhile,

When Ferb's cousins visit from England and challenge him to a soccer match, he and Phineas warp the walls of physics and build a high tech 3D stadium. Meanwhile, convinced that her relationship with Jeremy depends on her being more proper, Candace enlists the help of Ferb's British cousin, Eliza, to teach her the rules of etiquette. Back at Doofenshmirtz Evil Inc., Dr. Doofenshmirtz is sick in couch but forces himself to set off his \"If-A-Tree-Fell-in-the-Forest-Inator\", which causes any tree

After losing a gift from Jeremy, Candace enlists Phineas and Ferb to help her recreate it by entering her subconscious with their Mind Machine. Meanwhile, Doofenshmirtz tries to take over the Tri-State Area with his "Underwear-inator", banking on everyone's fear of being seen in their underwear. Absent: Major Monogram Phineas and Ferb build a giant ant farm to experience life from an ant's perspective. When Candace, determined to bust them, accidentally sprays herself with ant pheromones and fol

While Candace is in charge, Phineas and Ferb are accidentally turned into babies by Doofenshmirtz's "Babe-inator." Meanwhile, Doofenshmirtz surrenders to O.W.C.A., claiming to have given up his evil ways, and attempts to become an O.W.C.A. agent. After retrieving the Amulet of Juatchadoon, archaeologists Ohio Flynn (Phineas) and Rhode Island Fletcher (Ferb) travel to Central America to help Isabella find the Lost Temple and her missing mother. Meanwhile, Doofenshmirtz plans to use the amulet to

While Phineas and Ferb build a giant all-in-one amusement park ride through town and Doofenshmirtz uses his Juice-inator to turn Danville City Hall into juice, the story focuses on Paul, a delivery guy who encounters both subplots and questions whether his job is truly fulfilling. Phineas and Ferb create a trampoline park in the sky using an anti-gravity device. When Candace gets zapped by it, she struggles with zero gravity during brunch with Jeremy's family. Meanwhile, Doofenshmirtz invents th

When Linda asks for quiet during her online knitting test, Phineas and Ferb build ninja suits that make the wearer invisible. Meanwhile, Candace struggles to bust them, and Doofenshmirtz accidentally makes himself incredibly handsome with his "De-Handsome-inator". After an argument with Baljeet, a heartbroken Buford teams up with Doofenshmirtz to conquer the Tri-State Area. Meanwhile, Baljeet embraces his newfound freedom and asks Phineas and Ferb to help him climb Danville Mountain, without inv

When Linda runs out of Doonkleberries for her famous pie, Phineas and Ferb travel to Drusselstein to find more. Meanwhile, Doofenshmirtz returns to Drusselstein to renew his driver's license, only to discover he must retake the driving test. Back in Danville, Candace searches for a library book on the scientific method to help her bust her brothers. Absent: Buford Brigitte, Josette, and Colette, the visiting Fireside Girls from France, join Isabella in capturing the American Grizzly Bear, one of

Candace's plans to hang out with Jeremy are derailed when he becomes hooked on Phineas and Ferb's latest game, jetpack volleyball. Meanwhile, after discovering that he invents "-inators" in his sleep, Doofenshmirtz decides to enter his dreams to figure out why. Phineas and Ferb build a flying saucer to investigate mysterious crop circles. Meanwhile, Candace takes a "me day" to break her tattling habit, and Doofenshmirtz uses his "Dough-Blow-inator" to rig a pizza dough-tossing contest.

Meap returns to enlist Phineas and Ferb's help in stopping his nemesis Mitch, who plans to become the most adorable, and most powerful, being in the galaxy. Meanwhile, Doofenshmirtz tries to rekindle his rivalry with Peter the Panda, only to find himself caught in a nemesis love triangle when Perry shows up. Guest stars: David Mitchell as Mitch, Lorenzo Lamas as Meap, and Jeff Foxworthy as Southern-accented Meap

When Phineas and Ferb ask Candace to decide what they should do for the day, she tells them to invent a device that will attract Linda home from across town so she can finally bust her brothers. Meanwhile, Doofenshmirtz attempts to embarrass his brother Roger with his "Baby-Cry-inator". To help Baljeet get smarter, Phineas and Ferb create a helmet that boosts his IQ, but it spirals out of control when he plans to move the Earth's atmosphere to the moon. Meanwhile, Doofenshmirtz uses his "Key-Fin

Candace tries to bust Phineas and Ferb when they stage an enormous backyard magic show. Meanwhile, Vanessa and Major Monogram's son, Monty, go on a coffee date despite the rivalry between their fathers. Elsewhere, Doofenshmirtz attempts to become "hip" in a bid to attract a younger following. At the Danville Swap Meet, Phineas and Ferb help Lawrence track down the valuable 1807 Dorcham and Wesley Boot Scraper. Meanwhile, Candace goes through a series of trades to acquire a rare Ducky Momo collec

Candace accidentally liquefies herself after coming into contact with Phineas and Ferb's device that turns solids into liquids. Meanwhile, Doofenshmirtz turns himself into a platypus in an attempt to make it easier to defeat Perry in battle. Candace struggles to bust Phineas and Ferb when they build nanobots that can become anything they imagine. Meanwhile, with Doofenshmirtz away on jury duty, Norm takes over and attempts to destroy Danville with weapons.