Phineas and Ferb - S1E40: The Monster of Phineas-n-Ferbenstein
Episode · 2008 · 11m
What's the Story?
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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