S04 · E19

Happy Birthday, Isabella

Jul 12, 201311mRating 7.5

Phineas and the gang celebrate Isabella's birthday in a big way, but all she really wants is some quiet time with Phineas. Meanwhile, Doofenshmirtz has installed his Bugs Me-Inator onto an evil bug bus and is driving around Danville turning all the things that bug him literally into bugs.

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Happy Birthday, Isabella

Episodes

For Your Ice Only

Happy New Year!

Fly on the Wall

Bully Bust

My Sweet Ride

Der Kinderlumper

Sidetracked

Primal Perry

Mind Share

Backyard Hodge Podge

Bee Day

Bee Story

Great Balls of Water

Where's Pinky?

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

Knot My Problem

Just Desserts

La Candace-Cabra

Happy Birthday, Isabella

Love at First Byte

One Good Turn

Phineas and Ferb: Mission Marvel

Thanks But No Thanks

Troy Story

Druselsteinoween

Terrifying Tri-State Trilogy of Terror

Face Your Fear

Cheers for Fears

Steampunx

Just Our Luck

Return Policy

Live and Let Drive

Phineas and Ferb Save Summer

Father's Day

Imperfect Storm

The Return of the Rogue Rabbit

It's No Picnic

The Klimpaloon Ultimatum

Operation Crumb Cake

Mandace

Phineas and Ferb: Star Wars

Lost in Danville

The Inator Method

Night of the Living Pharmacists

Tales from the Resistance: Back to the 2nd Dimension

Doof 101

Act Your Age

Last Day of Summer