W2TCH

Phineas and Ferb (2007 – ...)

2007 • 5 seasons • Animation, Comedy • TV-G
JustWatch▲ +11#4075IMDb8.1/1069,470TMDB79%1,061Rotten Tomatoes—Metacritic—
On September 28, 2026
#1018▲ 17
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Season 1

Phineas and Ferb · S1E40 — The Monster of Phineas-n-Ferbenstein

Oct 17, 2008 · 11 min · 8.0 (3 votes)

Synopsis

The children discover a tale of one of Ferb’s Victorian forebears, a man who aided a scientist in the creation of a monstrous being. Simultaneously, Doofenshmirtz recounts the history of his great-great-grandfather, Dr. Jekyll Doofenshmirtz.