Video ClipsSee all »
Watch See all »
The guys create a sports competition that pits boys against girls to see which are the better athletes, and they build a telescope in their backyard; Candace is tormented by Jeremy's sister; Doofenshmirtz tries to win a dog show, and he attempts to liquefy (more…)
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. Later, the guys create a robot dog and Candace meets Jeremy's mom (Jane Lynch).