Season 3, Episode 1 The Great Indoors
First Aired: March 4, 2011
The third season begins with Phineas and Ferb building a gigantic biodome during a bit of bad weather to help Isabella earn a Fireside Girl patch.
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- 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)
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