Phineas and Ferb the Movie: Across the 2nd Dimension
Phineas and Ferb the Movie: Across the 2nd Dimension
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.
