Broken Down

When Phineas and Ferb's mother's car breaks down they decide to fix it with one of their inventions. Meanwhile Heinz Doofenshmirtz creates the Crush-The-Mayor-Inator.

The Story (I am working on it)
Phineas, Ferb, Linda Flynn-Fletcher and Candace Flynn drive in their car to the airport where Isabella Garcia Shapiro and her mother are waiting for them. All of a sudden the car breaks down. Phineas wonders where Perry is.