Rollercoaster: The Movie

The boys redo their first project as a movie. Meanwhile, Dr. Doofenshmirtz makes the Magnetism Magnifier again.

Act One
The boys sit under their tree talking about these times they built their first project on the first day of summer vacation. He proposes that they do it again, this time as a movie. But Phineas and Ferb sing a song that inspires that they're putting on a show. Later, they borrowed a script for the first episode of the series and the musical for the first project they did on the first day of summer vacation. Then, they said the quotes from "Rollercoaster." They sang their second musical number, "Hey Ferb." Their mom, Linda tells the boys that she's gonna pick up a few things. Before she leaves, Candace asks her if she is in charge. She says no one needs to be in charge. But she asks what if there is an emergency.