Season 1, Episode 40 The Monster of Phineas-n-Ferbenstein
First Aired: October 17, 2008
The boys learn about one of Ferb's Victorian ancestors, who helped a scientist create a monster.
Cast & Details See all »
- Premiered: August 17, 2007
- Rating: TV-G
- Premise: Animated adventures of two stepbrothers who build outlandish inventions in their backyard while their pet platypus, Perry, carries out secret spy missions. (more)