Phineas and Ferb S4E21 poster

Watch Phineas and Ferb – Season 4 Episode 21: One Good Turn

Phineas and Ferb • Season 4, Episode 21 • 11 min • 2007 • ⭐ 7.9/10 • Animation , Comedy , Family , Sci-Fi & Fantasy

Cast: Dee Bradley Baker , Vincent Martella , David Errigo Jr. , Ashley Tisdale , Caroline Rhea , Alyson Stoner , Dan Povenmire , Jeff 'Swampy' Marsh

Directors: Dan Povenmire , Jeff 'Swampy' Marsh

Watch Phineas and Ferb – S4E21

Episode Overview

Candace and Stacy compete in Phineas and Ferb’s Ultimate Obstacle Course. Doofenshmirtz plans to humiliate his brother, the Mayor.

Episode Navigation

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