When Worlds Collide; Road to Danville
First Aired: November 17, 2012
Phineas and Ferb try to prevent an out-of-control planet from smashing into Danville; Doofenshmirtz and Perry get zapped by one of the evil doctor's devices and end up in the middle of nowhere.
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- 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)