Four families compete each week to transform their homes for the holidays, in hopes of winning the $50,000 prize and the coveted Light Fight trophy.
When Steve starts acting like a spoiled brat during the holidays, Stan takes him to see his incarcerated Grandpa Jack, who tells him the story of how he caught Minstrel Krampus, a legendary demon who punishes naughty children on Christmas. Stan decides that releasing Krampus is the only way to straighten out Steve's attitude. But when Krampus kidnaps Steve, it's up to Stan and Roger to get him back. Meanwhile, Hayley gets a job at the airport, but quickly realizes that she might not be cut out for customer service.
The castaways and their loved ones are reunited and discuss the season.
Debbie attempts to bring some common sense to a village full of idiots and, in the process, ruins Negatus's latest plan.
Elaine and Aidan struggle to define their relationship Jack moves forward with Sara Drew's renewed interest in the case yields shocking results.
Desautel brings in the New Year with Davis and Jacques Davis embarks on a mission to bring music back to Rampart St. Batiste gets a taste of Hollywood South Annie gets the message loud and clear from her manager Marvin Frey. Delmond is inspired to work on a new piece. Lambreaux goes for a night out and over does it. LaDonna takes Alcide and Randall to visit her momma in Baton Rouge. Bernette wants to proceed with a case against Orleans Parish Prison Colson wants to tell all that he knows.
Security forces close in on Carrie and Brody. As Saul plans a last ditch rescue operation, Brody struggles to find redemption.
Springfield is inundated with holiday revelers after the nuclear power plant springs a radiation leak, causing snow to fall all over town. When the tourists drive up Christmas shopping prices, Marge opens up the Simpsons' house to boarders.
After Linda accidentally kills the family tree, the Belchers must go out on Christmas day to find a new one. But when Bob cuts off a giant candy cane truck, they are forced to outrun the madman driver and spend the entire holiday together in the car. Back at the Belcher home, Bob’s friend, Teddy, accidentally gets stuck in the kids’ Santa trap.
Stan and Roger travel to the North Pole to rescue Steve from an infamous Christmas demon.
When Carter Pewterschmidt cancels the annual Quahog Christmas carnival, because he hates the holiday, Peter must transform his father-in-law from a Scrooge into a hometown hero in order to salvage the event. Meanwhile, Stewie devises a master plan to get the one and only thing he wants for Christmas.
Freya's wedding day arrives as do gifts from both Killian and Dash. Joanna and Wendy discover the identity of the shifter. When Ingrid discovers some unnerving details about Mike, he takes dangerous measures to complete his plan.
The wedding of the century has finally arrived and Emily's master plan is poised to go off without a hitch until enemies unite, bringing new complications and leading to dire consequences.
The residents of Storybrooke race to stop Pan from placing another curse on the town.
Just one day of Christmas cheer isnt enough for a real-life Santa and Mrs. Claus, who celebrate the season days a year in Southern California. Old St. Nick and the missus call on Pete and his crew to spruce up their yard with some holiday magic. Pete creates a treehouse workshop complete with Santa's red chair, a naughty-or-nice drawbridge, a secret elf trap door, a candy cane and holly access bridge and some miracle Christmas snow...in the California desert
Bo fights for the freedom of a talented opera singer, whose voice could be the key to unlocking the answers she seeks. Kenzi is threatened by someone from Hale's past.
A castaway is declared the winner after grueling days of competition.
Masters work on human sexuality culminates with a hospital-wide presentation of his and Johnsons research findings. But when Masters attempts to push the envelope with the external footage of the female orgasm, the doctors response to the film is not what he had hoped. Meanwhile, Haas entertains a job offer at UCLA Hospital and considers what a move would mean for his relationship with Virginia. Scully pursues electroshock treatment with the hope of curing his homosexuality but Margaret has second thoughts about the risks involved.