In this "fanimatic", When the Flynn/Fletcher visit Peru, Perry must find Dr. Doofenshmirtz, who plans to travel back in time in his Time Machine-lnator to ask the emperor for advice. But Soon The Emperor's former adviser Yzma travels to the future to become empress of the Tri-State Area. Now It's up to Phineas, Ferb, Kuzco, Kronk and Malina to save the city of Dansville.