Where To Stream Phineas and Ferb Season 4 Episode 21
One Good Turn
- Aired August 9, 2013
- 15 Min
- Rated 8.0
- Number 237 Of 247 Rated Episodes
Candace and Stacy compete in Phineas and Ferb's Ultimate Obstacle Course. Doofenshmirtz plans to humiliate his brother, the Mayor.