Phineas and Ferb
The Monster of Phineas n Ferbenstein
Season 1, Episode 40October 17, 200815 minHalloween
Where to watch
The boys learn about one of Ferb's Victorian ancestors, who helped a scientist create a monster. Meanwhile, Doofenshmirtz recalls the story of his great-great-grandfather Dr. Jekyll Doofenshmirtz.
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