Perry's worst fear comes true when Phineas and Ferb find out that he is in fact Secret Agent P, but that soon pales in comparison during a trip to the 2nd dimension where Perry finds out that Dr. Doofenshmirtz is truly evil and successful.

Director: Robert Hughes, Dan Povenmire, Jay Lender

Writer: Jon Colton Barry, Dan Povenmire, Jeff 'Swampy' Marsh

Actors: Vincent Martella, Ashley Tisdale, Thomas Brodie-Sangster

Production: N/A