Phineas and Ferb Christmas Vacation - In the special, it's Christmas Eve and an excited Phineas and Ferb are working to turn the city of Danville into a giant shimmering thank you card to Santa Claus.
Meanwhile, Dr. Doofenshmirtz develops a Naughty-inator and suddenly, the Tri-state area is clouded in naughtiness and kids' letters to Santa are returned unanswered. Two of Santa's British elves arrive to investigate, but Phineas and Ferb must quickly devise a way to spread holiday cheer, all while Mom and Dad go to the airport to fetch Grandpa and Grandma Fletcher who've just arrived from England. Meanwhile, Candace tries, in a not so covert way, to figure out what's on Jeremy's Christmas wish list.
Phineas and Ferb Christmas Vacation premieres Sunday, December 6 (8:00 p.m.-8:45p.m., ET/PT) on Disney XD and across multiple Disney-ABC TV, radio and digital platforms plus iTunes and Xbox Live, FRIDAY, NOVEMBER 27 through FRIDAY, DECEMBER 18.