The WORST episodes of Phineas and Ferb

Every episode of Phineas and Ferb ever, ranked from worst to best by thousands of votes from fans of the show. The worst episodes of Phineas and Ferb!

"Phineas and Ferb" is an American animated television comedy series. Originally broadcast as a preview on August 17, 2007 on Disney Channel, the series follows two kindhearted suburban stepbrothers on summer vacation. Each day the boys embark on some grand new project, which annoys their controlling sister, Candace, who tries to bust them. The series follows a standard plot system; running gags occur every episode, and the B-Plot almost always features Perry the Platypus ("Agent P"), acting as a secret agent to fight an evil scientist named Dr. Heinz Doofenshmirtz. The two plots intersect at the end to erase all traces of the boys' project just before Candace can show it to their mother.

Last Updated: 11/28/2024Network: Disney ChannelStatus: Ended
Phineas and Ferb's Musical Cliptastic Countdown Hosted by Kelly Osbourne
star
6.10
59 votes

#1 - Phineas and Ferb's Musical Cliptastic Countdown Hosted by Kelly Osbourne

Season 4 - Episode 15 - Aired 6/28/2013

Dr. Doofenshmirtz and Major Monogram have their hearts set on revealing the top 10 musical numbers from Seasons 2 and 3, but soon find out that celebrity host Kelly Osbourne has been brought in to fill the role. Unwilling to submit to playing second fiddle, Doofenshmirtz makes it his mission to thwart Kelly until Perry the Platypus sets out to stop his nemesis from ruining the entire show. Maia Mitchell ("Teen Beach Movie") also guest stars.

Directors: Kim Roberson
Writer: Bobby Gaylor
The Doof Side of the Moon
star
6.13
87 votes

#2 - The Doof Side of the Moon

Season 2 - Episode 61 - Aired 10/8/2010

Phineas and Ferb plan to put Danville on the map by building the world's tallest building. However, Candace teams up with Albert and utilizes his expertise to bust her brothers. Meanwhile, Dr. Doofenshmirtz wants to be responsible for all the evil in the Tri-state area, and since he believes that evil levels rise during a full moon, he plans to rotate it so that only the infamous "dark side of the moon" faces Earth.

Watch Now:Apple TV
The Return of the Rogue Rabbit
star
6.98
53 votes

#3 - The Return of the Rogue Rabbit

Season 4 - Episode 36 - Aired 6/16/2014

Doof gets rogue OWCA agent Dennis the Bunny to escape prison. Meanwhile, Phineas and Ferb make some improvements on the Fireside Girls' marionette show.

Directors: Robert F. Hughes
Ain't No Kiddie Ride
star
7.05
84 votes

#4 - Ain't No Kiddie Ride

Season 2 - Episode 45 - Aired 2/20/2010

The boys trick out the kiddie rides at a store, Dr. Doofenshmirtz tries to burn his name into the atmosphere.

Watch Now:Apple TV
star
7.09
70 votes

#5 - Sipping With the Enemy

Season 3 - Episode 51 - Aired 6/22/2012

Candace tries to bust Phineas and Ferb when they put on an enormous backyard magic show, while Vanessa and Major Monogram's son Monty get coffee together despite their warring fathers. Meanwhile, Dr. Doofenshmirtz tries to become hip in an attempt to get youthful followers.

Buford Confidential
star
7.09
81 votes

#6 - Buford Confidential

Season 3 - Episode 43 - Aired 4/27/2012

Brigitte, Josette, and Colette, the visiting Fireside Girls from France, help Isabella capture the American Grizzly Bear, one of the world's most dangerous creatures. Buford's plan to jokingly dress up as the bear backfires when he discovers the identity of Brigitte, throwing him off his game. Back at their grandparents' cabin, Phineas and Ferb create the most amazing "run-through-the-sprinkler" experience. Meanwhile, Dr. Doofenshmirtz's loathing of pretzels drives him to create the "De-Twist-Inator" to untwist every pretzel in Danville.

Sleepwalk Surprise
star
7.14
106 votes

#7 - Sleepwalk Surprise

Season 3 - Episode 49 - Aired 6/8/2012

Candace's plans to hang out with Jeremy are derailed after he becomes interested in playing Phineas and Ferb's newest game, jet pack volleyball. Meanwhile, when Dr. Doofenshmirtz discovers he invents "-inators" in his sleep, he decides to go back into his dreams to find out what is happening.

Voyage to the Bottom of Buford
star
7.15
188 votes

#8 - Voyage to the Bottom of Buford

Season 1 - Episode 30 - Aired 6/7/2008

When Buford's goldfish goes missing, the boys help him find it out at sea. Meanwhile, Dr. Doofenshmirtz tries to destroy a tape of him 'saving' a kitten from a tree.

Directors: Dan Povenmire
Cranius Maximus
star
7.15
47 votes

#9 - Cranius Maximus

Season 3 - Episode 45 - Aired 5/4/2012

When Baljeet becomes concerned that he is losing his mental edge, the boys invent a cerebral stimulatory hat, or "Brain booster," to help him. But when the hat exceeds expectations and makes Baljeet exponentially smarter, he suddenly views everyone else as beneath him and becomes a threat to civilization by taking Earth's atmosphere and bringing it to the moon. Meanwhile, Dr. Doofenshmirtz plans to use his "Key-Find-Inator" to collect all the keys in Danville in hopes that it will lead to the Key to the City.

Lost in Danville
star
7.16
49 votes

#10 - Lost in Danville

Season 4 - Episode 42 - Aired 9/29/2014

Doofenshmirtz gets kidnapped by Professor Mystery. Phineas and Ferb find a capsule with Bernie and Denise.

Directors: Sue Perrotto
Tri-State Treasure: Boot of Secrets
star
7.18
74 votes

#11 - Tri-State Treasure: Boot of Secrets

Season 3 - Episode 52 - Aired 6/22/2012

The guys help their dad unearth a missing piece of Danville history; Doofenshmirtz tries to make himself younger to win a children's film festival.

Perry Lays an Egg
star
7.18
214 votes

#12 - Perry Lays an Egg

Season 2 - Episode 10 - Aired 4/11/2009

When an early end to their daily project causes Phineas and Ferb to mistake an egg for Perry's, the boys use all their technological knowhow to help hatch the new part of the family. However Candace has different plans for the egg, as a nature show brings her to be the one to convince Phineas and Ferb that the newborn will need a real mother. Meanwhile, Doofenshmirtz is doing all he can to convince Perry that his latest scheme really is evil.

Watch Now:Apple TV
Just Desserts
star
7.19
86 votes

#13 - Just Desserts

Season 4 - Episode 17 - Aired 7/5/2013

Phineas and Ferb build a wall for climbing. Candace is recording a Fireside Girls book with Irving and loses her voice. Meanwhile, Dr. Doofenshmirtz creates the Just-Desserts-inator.

Directors: Robert F. Hughes
Writer: Kaz, Kim Roberson
The Inator Method
star
7.19
47 votes

#14 - The Inator Method

Season 4 - Episode 43 - Aired 10/3/2014

Doofenshmirtz teaches an Inator Method seminar.

Directors: Sue Perrotto
Bee Story
star
7.19
62 votes

#15 - Bee Story

Season 4 - Episode 12 - Aired 4/26/2013

Isabella and the Fireside Girls turn themselves into bees. Poofenplotz tries to become Queen of the World by stealing and consuming massive amounts of royal jelly.

Directors: Sue Perrotto
Watch Now:Apple TV
I Scream, You Scream
star
7.23
290 votes

#16 - I Scream, You Scream

Season 1 - Episode 15 - Aired 2/17/2008

Phineas and Ferb make the biggest ice cream maker for Isabella after her tonsils are taken out. Doofenshmirtz's daughter, Vanessa, spends the day at his lair and tries to convince his ex-wife that he's evil.

Directors: Zac Moncrief
Writer: Bobby Gaylor
Watch Now:Apple TV
What a Croc!
star
7.23
47 votes

#17 - What a Croc!

Season 3 - Episode 48 - Aired 6/1/2012

When the boys learn that the famous Crikey the Crocodile has gone missing, they set out to find and return him to his home at the Danville Nature Preserve. Meanwhile, to Candace's amazement, Irving reveals his digital scrapbook compilation of all of Phineas and Ferb's wild creations, and guest star Ray Liotta fills in for Major Monogram to give Perry his mission. Also, Dr. Doofenshmirtz plans to embarrass his brother by using his 'Chicken-Replace-inator' to replace Roger's mayoral award with the nearest chicken.

Perry the Actorpus
star
7.25
61 votes

#18 - Perry the Actorpus

Season 3 - Episode 36 - Aired 3/3/2012

The executive of Totally Tools oversees a contest to find the company’s "spokesanimal," and Perry is crowned the winner. However, the victory puts Perry's secret identity in jeopardy, forcing Major Monogram to appoint Agent S as a temporary replacement, but when Dr. Doofenshmirtz sees his new nemesis is Sergei the Snail, he mistakenly underestimates his new opponent. Meanwhile, Candace has been welcomed into Mandy’s "Stop the Busting" retreat, which aims to teach Candace to control the urge to bust her brothers through positive reinforcement.

Cheers for Fears
star
7.25
56 votes

#19 - Cheers for Fears

Season 4 - Episode 28 - Aired 11/1/2013

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.

Directors: Sue Perrotto
When Worlds Collide
star
7.27
85 votes

#20 - When Worlds Collide

Season 3 - Episode 58 - Aired 9/14/2012

After discovering that a strange planet is hurtling directly towards Danville, Phineas and Ferb set out to avert a disaster, while Buford looks forward to making contact with its alien race. Meanwhile, Dr. Doofenshmirtz hopes to steal the world's largest ball of twine.

Fly on the Wall
star
7.27
117 votes

#21 - Fly on the Wall

Season 4 - Episode 3 - Aired 1/11/2013

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.

Directors: Sue Perrotto
Watch Now:Apple TV
Phineas and Ferb Hawaiian Vacation (1)
star
7.28
65 votes

#22 - Phineas and Ferb Hawaiian Vacation (1)

Season 2 - Episode 53 - Aired 7/9/2010

The Flynn-Fletcher Family go on a vacation to Hawaii. While they are there, Phineas and Ferb make living sea creatures, Candace find a lava necklace of bad luck, and Doofenshmirtz creates a De-Evolution-inator.

Watch Now:Apple TV
Tri-Stone Area
star
7.28
96 votes

#23 - Tri-Stone Area

Season 3 - Episode 28 - Aired 1/13/2012

It’s the Stone Age and Phineas and Ferb are cavemen who decide to invent something new, fun and useful…the wheel! Meanwhile, Dr. Doofenshmirtz attempts to make his digs more upscale by using the precursor to the Inator device... a plain old stick.

The Monster of Phineas-n-Ferbenstein
star
7.30
145 votes

#24 - The Monster of Phineas-n-Ferbenstein

Season 1 - Episode 40 - Aired 10/17/2008

The boys learn about one of Ferb's Victorian ancestors, who helped a scientist create a monster. Meanwhile, Doofenshmirtz recalls the story of his great-great-grandfather Dr. Jekyll Doofenshmirtz.

Directors: Zac Moncrief
Ferb TV
star
7.30
80 votes

#25 - Ferb TV

Season 3 - Episode 57 - Aired 9/7/2012

Phineas and Ferb create their own TV shows and commercials.