Phineas and Ferb - Full Series Information, Trailer & IMDb Reviews
Watch Phineas and Ferb Season 1 Episode 40 online — it may be available on legal streaming platforms such as YouTube, Netflix, Prime Video, Hulu, Disney+, and others.
Phineas and Ferb: The boys learn about one of Ferb's Victorian ancestors, who helped a vaguely familiar scientist create a monster. Meanwhile, Doofenshmirtz recalls the story of his great-great-grandfather Dr. Jekyll Doofenshmirtz to Perry, as they both wait out their lockdown.