The best episode written by Jeff 'Swampy' Marsh is "Lawn Gnome Beach Party of Terror", rated 9/10 from 1 user votes. It was "directed by Dan Povenmire". "Lawn Gnome Beach Party of Terror" aired on 9/28/2007 and is rated 1.8 point(s) higher than their second highest rated, "Rollercoaster".
Phineas and Ferb's newest backyard project is to create a tropical beach paradise. Meanwhile, Perry tries to stop Dr. Doofenshmirtz's plan to steal all the garden lawn gnomes.
Director: Dan Povenmire
Writer: Jeff 'Swampy' Marsh
While their mother is out shopping, the boys build a roller coaster. Dr. Doofenshmirtz and Perry battle due to the doctor's evil plan of throwing the earth off its rotation.
Director: Dan Povenmire
Writer: Jeff 'Swampy' Marsh
Upon hearing that her favorite play is being made a movie, Candace rushes to try for the lead, only to see that Phineas and Ferb have become the directors and changed the script to include a little more insanity. Meanwhile, Perry goes to Doofinshmirtz Evil Inc. to find out why Heinz has been so quiet lately.
Director: Dan Povenmire
Writer: Jeff 'Swampy' Marsh
Phineas enters a thumb-wrestling competition with a local bully, while Doofenshmirtz creates a hypnotic device to control people's minds so they will sing him Happy Birthday.
Director: Dan Povenmire
Writer: Jeff 'Swampy' Marsh
Phineas and Ferb decide to carve Candace's face into Mount Rushmore for her birthday present, while Perry attempts to stop Doofenshmirtz from making a tunnel to China.
Director: Dan Povenmire
Writer: Jeff 'Swampy' Marsh
Phineas and Ferb enter the family car in an auto race, while Candace has to bust them and impress Jeremy. Meanwhile, Perry must stop Dr. Doofenshmirtz from deflating every inflatable object in the tri-state area.
Director: Dan Povenmire
Writer: Jeff 'Swampy' Marsh
When Doofinshmirtz unleashes his army of termites to eat all the wood in the tri-state area, Phineas and Ferb use their newfounded love of a cowboy life to herd the stampeding cattle back to the carnival, but with Agent P stuck in a room filling with lava, how will he survive?
Director: Dan Povenmire
Writer: Jeff 'Swampy' Marsh
Phineas and Ferb visit an Egyptian-themed movie theater and attempt to get a mummy of their own, but they end up capturing Candace, who is wrapped in toilet paper, while Doofenshmirtz tries to raise the city's water level so his real estate will become beachfront property.
Director: Dan Povenmire
Writer: Jeff 'Swampy' Marsh