It's Halloween night and the kids encounter a strange boy named Russell who is convinced his house is haunted. Meanwhile, Dr. Doofenshmirtz's disdain for grass causes him to invent a "mind-transfer-inator" enabling him to merge minds with a cow and destroy all the grass in the Tri-State Area. Unfortunately, his plan backfires and he transforms into a scary "were-cow" that wreaks havoc any time there is a full moon. It's now up to Agent P to stop him and save Danville.
Where to watch
Where to watch from the Streaming Availability API by Movie of the Night.
Still and episode from TVmaze.
Phineas and Ferb Halloween
All 15-
1
The Monster of Phineas n FerbensteinS1 E4020083.9
-
2
Get That Bigfoot Outta My Face!Disney+S1 E172008
-
3
One Good Scare Ought to Do It!Disney+S1 E392008
-
4
Day of the Living GelatinDisney+S2 E62009
-
5
Invasion of the Ferb SnatchersS2 E442010
-
7
The Curse of CandaceDisney+S3 E232011
Top Halloween
Top 100
HalloVeen
Brooklyn Nine-Nine · 2017
Haunted
Teen Titans · 2004
Epidemiology
Community · 2010
Treehouse of Horror V
The Simpsons · 1994
Who Got Dee Pregnant?
It's Always Sunny in Philadelphia · 2010
The Hauntening
Bob's Burgers · 2015
Halloween
Frasier · 1997
Curse of the Green Halloween Witch
Smiling Friends · 2025
Halloween, Part III
Brooklyn Nine-Nine · 2015
Illuminated
Teen Wolf · 2014
This is a Dark Ride
Pretty Little Liars · 2012
Witness Marks
The Haunting of Hill House · 2018