Season 4
31 episodes
28 min. per episode
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Two stepbrothers unleash wild inventions each day while thwarting their sister’s schemes and their secret agent pet's nemesis.
Trailer
Episodes
In "For Your Ice Only", Phineas and Ferb take a hockey game to the extreme. In "Happy New Year!", the boys plan their own New Year's Eve ball drop while Candace makes a resolution to stop busting her brothers.
Fly on the Wall: Phineas and Ferb create a giant tire swing contraption; Buford messes with the wiring and creates a ray which turns Candace into a fly; Candace has a perilous adventure trying to get back to the boys to get switched back. My Sweet Ride: Phineas and Ferb complete the reconstruction of Dad's classic car entry for the Doo-Wop Hop event. Perry foils Doofenshmirtz's plot to win the Doo-Wop Hop car show, which involves turning the other entries into rust, by tricking Norm the Robot who is operating the "Rust-inator".
Agent P reluctantly joins up with a former partner to stop a hijacked train running along the border of the U.S.A. and Canada.
Doofenshmirtz hires an Outback platypus hunter who "goes rogue," forcing Perry and doctor to team up to save themselves from the boomerang-throwing maniac. Baljeet is unable to make decisions, fearing the wrong choice on even simple questions will send his life down the wrong path. Phineas and Ferb create a device that lets him see both possible outcomes of his decisions. As a side effect, it also creates a crowd of Baljeets.
Buford tries to keep Phineas and Ferb's invention from disappearing. The boys create a new invention using recycled parts from past projects.
Phineas and Ferb invent, scheme, and stay one step ahead of their bratty sister. Meanwhile, their pet platypus plots against evil Dr. Doofenshmirtz.