The Mighty Isabella!

is the sixth episode of Hollywood World.

Summary
Isabella turns into "The Rainbow" and starts fighting crime. But Courtney turns "The Rainbow" into the super villian. Can Phineas save her?

Characters
Isabella Courtney Phineas Katie Sadie Peter Ferb Justin Owen

Trivia

 * The episode title is similar to "The Mighty B!" None of the characters from that show have appeared in this episode.