After reuniting with her brothers, Rebekah convinces Elijah and Klaus to participate in a family tradition from their childhood.

As the holidays approach, Bay bristles at Kathryn's festive holiday spirit, complete with homemade peanut brittle and Christmas karaoke, while Daphne is frustrated with Regina's usual tradition of movies and Chinese food for Christmas. Then, after a joint family dinner including "magical" garlic knots, they wake to discover that the switch never happened. In this alternate life, Bay is an Olympic hopeful and Daphne is a successful artist with an upcoming exhibit. Is it the Christmas miracle they've always wanted? Could they even get back if they tried?.

After Max and Caroline decide to rent their apartment on AirBnb, claiming it offers an authentic "Williamsburg experience", a group of supermodels decide it would be a great place for a girls' weekend.

The semi finalists perform for the judges and vie for America's vote as they attempt to secure a place in the final.

A vaudeville comedian ends up murdered, prompting Crabtree and Higgins to go undercover to investigate the other performers.

Mike smiles with joy after seeing Molly's advance check after she returned home from an eight week writing shop telling him she's been published.

When Sylvester accidentally triggers an explosive device during an investigation, Team Scorpion must focus on finding who's responsible even while their friend's life hangs in the balance.

Jane and Rafael both reveal shocking secrets to each other. Xo is excited when a music producer, Elliot, contacts her to record a demo, but little does she know that Rogelio had a hand in making it happen. Meanwhile, Michael is close to a big break in his case, and Petra finds new was to make Rafael's life difficult.

When the Slotter's miners and Ling's railway workers fight one another to control the mine, the women take sides resulting in loss on both sides.

It's a race against time as the Monkeys rush to finish the KITT car. Richard's on edge because he's worried that him and Aaron might not make it to the Las Vegas birthday party with the car by the deadline. They also don't know if the Hoff will show up.

A former child star is found dead on skid row, halting a Hollywood comeback. The director of the movie and the acts manager are the prime suspects as the investigation gets underway. Flynn's daughter visits and highlights the true nature of the relationship between father and daughter.

As Callie and Jude spend their first Christmas with the Fosters, Callie feels the sting of still being an official foster kid while Jude's guilt over having been adopted has him overcompensating. Stef feels that Grandma Sharon's gift giving is excessive, especially when she learns where the money is coming from. Lena must face her own bias against another family member. Meanwhile, Jesus enters the neighborhood house decorating competition and is accused of cheating by his neighbor Mr. Nesbit.

The Monkeys rush to finish the KITT car in time.

Charlie and Nick both receive a threatening text that sends Nick on an investigation to find the source once and for all. Meanwhile, President Payton's rival Senator Green reveals just enough about the upcoming senatorial convoy attack report to cause her to question Charlie's faithfulness.

When an ER physician is gunned down in the street, Castle and Beckett soon discover that the victim was a mob doctor to a Mafia family run by an old friend of Castle's. Also, against this backdrop of Christmas, Esposito and Lanie reach a defining moment in their relationship.

Sam reflects on his own upbringing and relationship with his father when the team investigates the murders of marines who have sons in military academies.

A non-traditional therapist specializing in anger management thrives on the chaos in his life - while still battling his own anger issues.

Charlie and Sean are set up with the wrong dates from a matchmaker.

Norman Lear

Evangeline Lilly, Pete Holmes, Jackson Browne

President Barack Obama

Tonight guests are comedian Chris Rock and singer-songwriter Carrie Underwood.

Joaquin Phoenix, Cristela Alonzo, Al Green

Paul F. Tompkins, Alex Borstein and Brandon Johnson compete to determine who has the funniest take on the day's pop culture.

Seth was joined by Eliza Coupe, and Bob Mould who sits in with the The 8G Band, plus music from the Eeries.

Carrie Fisher, Dave Attell

Raf is thrown when Amy has an unexpected request. With LA firmly in his sights, Dominic ruthlessly risks all to fulfil his ambitions. It's secret santa and as Mo plays detective, has she found her perfect man?

In 2009, with no significant progress made in the case, Tony and Emily's marriage hangs by a thread - but a surprise turn of events brings them both back to Chalons du Bois for the first time since 2006.

In the present day, the information that Tony, Julien and Emily received gives them a tenuous lead. With Tony and Emily back in Chalons du Bois and finally making progress in the case, there is a thawing in their relationship.