Leonard has to deal with the fallout of disproving Sheldon's new scientific discovery. Raj spends a week at Howard and Bernadette's apartment.
Walden goes on a date with an accident-prone model; Alan's date reveals surprising personal information about herself to him.
While Neal delves further into the mystery of the Codex, Peter takes on a classified espionage case with a fellow FBI agent: his ex-girlfriend.
Caroline offers Stefan an unusual form of therapy. Meanwhile, Damon tells Elena about a terrible ordeal in his past that he has kept secret for decades, and she shares with him some disturbing information she recently learned about her family.
George catches up with designer Max McMurdo, who is making a classroom out of two rusting shipping containers. And there's also a garden office and a beauty emporium run from a rare 1947 caravan.
In the mythical land of Bubbledom, the evil Night Wizard has taken the magical Ring of the Sun! Someone needs to save the daytime! Will Molly and Gil return the Ring to the Sun King, or will it be nighttime in Bubbledom forever?
Conclusion. A mythical land is trapped in darkness after the Night Wizard swipes the enchanted Ring of the Sun, so Molly and Gil try to retrieve the ring and restore daylight to the land.
April travels four hours outside London to Cornwall to visit and cook with farmer and chef Tom Adams on his farm. Tom raises the cute, furry and delicious mangalitsa pigs. April and Tom butcher and cook the entire pig piece by piece: loin, shoulder, belly and head.
Drita joins Ang and Renee in Philadelphia for a costume party thrown by Alicia DiMichele Garofalo, the wife of alleged wise guy, Eddie "Tall Guy" Garofalo.
How do they produce marble, how do they make mahjong pieces, and how do they build escape slides? Finds out as more items are put under the microscope.
Gordon and Simon's values clash as they try to land a lucrative client; Lauren gets stuck in a $1 million bra.
Charlie is pursued by a hot reporter who wants to experience his sex study.
When Nathan learns why Debbie is Tom’s favorite child instead of him, he decides it’s time to fill his parents in on some of Debbie’s childhood secrets.
Sue Sylvester introduces the episode as a Christmas special that FOX did not allow to air from last year. The members of New Directions audition for roles in McKinley's living Nativity Scene. Meanwhile in New York, Rachel, Kurt and Santana work as Santa's elves at a mall.
With work on the 4th Street house nearly complete, Nicole continues to fix up the neglected exterior. The decorative fish scales and siding need repair and the whole house deserves a fresh coat of paint. In order to give this house a second chance in the neighborhood, Nicole must also add some curb appeal by building a fence and taming the wild lawn.
Work continues on Nicole's project in her hometown of Detroit, Michigan. The 1920s duplex lower unit's kitchen and bathroom need a lot of work, and fire damage isn't the only thing causing problems. The main plumbing stack that runs between both rooms has a huge crack in it, causing years of water damage that has the wall crumbling at the touch. A room off the back of the kitchen seems to have no purpose until Nicole comes up with the idea to turn it into a home office.
Chance The Rapper and Mel B are interviewed. Musical guests Questlove and Henry Rollins.