On the inevitable 104th day of vacation, the season is coming to a close and it’s Candace’s last chance to bust her brothers, who build huge playground equipment for the finale of summer. She is quickly foiled, but when she goes to return a DVD to Vanessa and finds Dr. Doofenshmirtz’s Do-Over-Inator, she finds an opportunity to redo the day, which results in other consequences like rips in the space-time continuum, the shortening of days, and the disappearance of her brothers.moreless
Eight years in the future, Phineas must decide between two colleges and learns that Isabella has liked him since they were kids. Ferb and the gang try to bring the two together so they will admit their feelings for each other. Meanwhile, Doofenshirmtz faces a midlife crisis.moreless
After the Alternate Doofenshmirtz's defeat in the 2nd Dimension, a new threat emerges, leaving it up to that world's Phineas, Ferb, Candace and her resistance fighters to battle the new threat.
In this Night of the Living Dead inspired special, Doofenshmirtz's latest -inator, accidentally turns the citizens of Danville into contagious repulsive versions of the evil scientist who run rampant all over town. Agent P and the kids have to find a way to save Danville before they become mindless clones as well.moreless
A long time ago, in a galaxy far, far away … we find Phineas and Ferb in the midst of a galactic rebellion and an epic struggle of good versus evil that tears the brothers apart and pits them against one another when Ferb goes to the Dark Side!moreless
Annoyed at waiting in really long lines at the return counter, Doofenshmirtz invents a "Back-to-the-Store-inator" to send things back to the store where they came. Meanwhile, Phineas and Ferb stage an extreme batting challenge their friends take place in, and Candace's obsession to bust coincides with her and Jeremy's visit to the Extreme Water Park.moreless
When Phineas and Ferb discover a commemorative coin from the 1903 Danville World’s Fair, they’re immediately taken back to the festival where steam-driven devices were introduced and a set of kids, who were very much like them, were preparing for the highly anticipated event.moreless
When Candace is stumped about what to get Jeremy for his birthday, she reluctantly asks Phineas and Ferb for their help in creating the ultimate gift. Meanwhile, Doofenshmirtz plans to make fears a reality with his Worst-Fear-Inator, but his plans backfire when he finds himself battling his own fears instead.moreless
This Halloween-themed episode consists of a trilogy of strange tales:
Ducky Momo Turns Evil: Candace accidentally conjures up a spell that turns her Ducky Momo plushie into a living, breathing doll that is set on stalking her.
Night of the Giant Floating Baby Head: Doofenshmirtz encounters the inexplicable Giant Floating Baby Head that grants cursed wishes, which could make him supreme ruler of the Tri-State area, that is, if he says it the right way.
Invasion of the Evil Platypus Clones: Phineas, Ferb and their friends confront a horde of mischievous, evil platypuses set on destroying the town.
When Vanessa learns that her father has inherited a Drusselsteinian castle right next door, she seizes the opportunity to throw the biggest Halloween bash ever. The whole town is there, including Phineas and Ferb, who act as the event's party planners and DJs. Meanwhile, Doofenshmirtz enlists Perry to help him find a large, hidden treasure that his great aunt has placed somewhere within the castle.moreless
After learning about Monty and Vanessa's secret relationship, Carl bribes Monty into helping him get some much needed acknowledgement from Monogram. Meanwhile, Candace is ecstatic when she discovers that her neighbor Peggy McGee has witnessed all of Phineas and Ferb's summer antics and is happy to tell Mom about them. Also, Dr. Doofenshmirtz creates its "Inflator-inator" to try to silence his neighbor who plays the bagpipes every day.moreless
Spider-Man, Iron Man, Thor and Hulk stand powerless after being struck by Dr. Doofenshmirtz's power-draining "inator." Once the Marvel Super Villains - Red Skull, Whiplash, Venom and M.O.D.O.K. - find out that Dr. Doofenshmirtz is responsible for robbing the superheroes of their powers, they seek him out and together create mayhem in Danville. Meanwhile, Phineas and Ferb do everything they can to restore the superheros' powers before the evil villains take over the world.moreless
When Linda is overwhelmed in organizing a block party, she asks Phineas and Ferb to set up a laser light show for a grand finale, leading Candace to be disappointed since it's not bust-worthy considering their mom requested it. And surprisingly, Doofenshmirtz isn't up to anything evil since he's helping Norm woo a female robot during the same party. But at the end, certain twists occur.moreless
The boys set out to prove the existence of the elusive Chupacabra to the world, but Candace can't stand the wait and needs to first just prove it to mom. Meanwhile, Doofenshmirtz has the brilliant idea to use his Switch-Place-Inator to remove hair from one person and give it to another so that he can in turn sell his hair growing tonic.moreless
Candace thinks her day will be easy when the boys actually ask her to get Mom if they get stuck in their gigantic reproduction of the Gordian Knot, but when Jeremy stops by and asks for her help to open his personal mini safe, she finds her day getting a little more complicated. Meanwhile, Doofenshmirtz plans to eliminate every all-you-can-eat buffet in the Tri-State Area with his Eat-It-All-Inator.moreless
When Candace thinks Jeremy is bored with their usual hangouts, she sets out to find something unique to do with him. Meanwhile, Phineas and Ferb power through town surfing on a giant ball of water and Doofenshmirtz plans to use his Double-Negative-Inator to confuse his local eatery into giving him a wintery drink that is usually not served during summer.moreless
The boys make a giant inflatable wading pool for Mom. Meanwhile, Candace reveals her "Emo" side, and Doofenshmirtz attempts to become ruler of all bees.
When Perry comes face to face with an Australian platypus hunter named Liam, who is set out on destroying him, his unwavering demeanor is threatened and his life is put in danger -- he must find a way to defeat this villainous foe, rescue Doofenshmirtz from the error of his ways and save himself from the hunt. Meanwhile, Baljeet is having an existential emergency and finds himself incapable of making decisions, so Phineas and Ferb create an infinite probability generator that will allow Baljeet to make as many choices as he pleases without being affected by the consequences.moreless
Agent P teams up with a former partner, a human agent named Lyla, to stop a hijacked train running along the US/Canadian border. In a past mission, they had a falling out, so Agent P must decide whether or not he can trust Lyla and her unique sense of logic to get them through the mission, defeat Doofenshmirtz and save the train's passengers and Canada's national treasure - a moose named Albert.moreless
The boys create Rutabaga-themed vehicles when Candace is chosen to be Rutabaga princess and gets to start the "Running of the Chinchillas." Across town, Doofenshmirtz plans to turn himself into a real live Kinderlumper to scare Roger into relinquishing control of the Tri-State Area over to him.moreless
Candace challenges Buford to keep Phineas and Ferb's invention from disappearing so that she can sweep in and casually bust her brothers. Across town, Doofenshmirtz has had one too many lattes and is experiencing an extra burst of evil energy.moreless
Buford removes a part from a tire swing the boys are building and it accidentally shoots a ray that turns Candace into a fly. Meanwhile, Doofenshmirtz is suffering from evil scientist's block.
Phineas and Ferb plan their own New Year's Eve ball drop, complete with a customized multidimensional ball, while Candace makes it her resolution to refrain from busting her brothers before the clock hits midnight. Meanwhile, Doofenshmirtz uses a Resolution-Changer-Inator in his tie as he continues the never-ending attempts to take over the Tri-State Area.moreless
National Hockey League star Luc Robitaille offers his assistance when Phineas and Ferb take an ice hockey game to the extreme. Meanwhile, Doofenshmirtz builds an Abominable-inator to make himself bigger, scarier and hairier.moreless