Phineas and Ferb: Haunted Hayride

It's Halloween night, and Phineas and Ferb have completely transformed their backyard into a giant corn maze. But little do they know that the evil Dr. Doofenshmirtz has created a giant monster to destroy their town! And when the monster heads for Phineas and Ferb's house, will Perry the Platypus be able to save the day?