Phineas And Ferb - Across The Second Dimension

Synopsis

After Phineas and Ferb realise that Perry is Secret Agent P, this gets clouded by the discovery that Dr. Doofenshmirtz is truly evil and successful. Phineas and Ferb, unaware that Dr. Doofenshmirtz is trying to be evil, help him to open a portal to another universe where Dr. Doofenshmirtz has taken over teh Tri-State Area with a robotic iron fist. Perry must form an alliance with an unusual gang of dopplegangers in order to save the day.