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

Phineas and Ferb

Season 1 · Episode 40 · The Monster of Phineas-n-Ferbenstein · 11 min

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.