Season 4, Episode 21 One Good Turn
First Aired: August 9, 2013
Candace and Stacy compete in Phineas and Ferb's "Ultimate Obstacle Course"; Doofenshmirtz tries to humiliate his brother, the mayor, by making him accidentally insult another town's mayor.
Cast & Details See all »
- Premiered: August 17, 2007
- Rating: None
- Premise: Animated adventures of two stepbrothers who build outlandish inventions in their backyard while their pet platypus, Perry, carries out secret spy missions. (more)