The final four cooks must break down an Alaskan king salmon and produce as many perfect filets possible; contestants must create a restaurant-quality salmon dish with a limited number of ingredients.

The man who killed Nora Allen finally confronts the Flash, and soon reveals that he's the hero's superior in every way. Meanwhile, Barry confesses a secret to Iris, Eddie asks Iris to move in with him, and Caitlin discovers that Ronnie is alive... but different.

Eliza confesses her growing feelings for Henry, who avoids the subject by focusing on the company's annual karaoke party.

Christmas is quickly approaching, and all of Rosewood is full of merriment, except for Aria, Emily, Hanna and Spencer, who aren't feeling much holiday cheer after the loss of Mona and Spencer's murder charge looming over them. But when an opportunity presents itself with the chance to get evidence to clear Spencer's name, the girls and their partners devise a plan to get justice for Mona and finally bring Alison down. If the plan is successful, it could be a very Merry Christmas after all. Meanwhile, Alison gets a glimpse at the past, present and future by a ghostly presence.

The results of this week's public vote is revealed. The new "wildcard" gives the past nine most recently eliminated artists the chance to perform one last time as they battle it out for the public's vote to bring them back into the competition and one artist will return for the Live Finals.

Zoë receives threatening texts from an unknown number about her fundraising activities. Worried about Miles, Tristan checks in on him and realizes that he has a vice that needs to be kicked. Alli is accepted to Cambridge and this scares Dallas.

Grant takes Skye to meet her father for the first time that she can remember. Meanwhile, Hydra attempts to enter the Kree city and Coulson launches a desperate attempt to stop them... and keep Raina from entering the temple with the Diviner.

April's grandparents stir up trouble when they pay a visit, and the Carvers celebrate an early family Christmas. The full contents of Leo's cryptic voicemail are revealed, leading April and Leo to rethink their last goodbye. In an attempt to help her friend cope with the effects of chemo, Beth helps April with a makeover, or two.

Annie, Kay, and Dennah are able to convince Jake that Gil has become too reliant on him. Jake wants Gil to take charge of his own life but things end up changing the balance of the entire group.

Leona, Gail and Wilma get a visitor from their past. Jumbo gets in too deep. Victor seeks advice from an unlikely source.

While Rick conducts a test that may help the team locate man-made flood tunnels on the island, Marty heads to Europe to track down an incredible lead.

Castiel finds Jimmy's daughter Claire in a group home and she convinces him to break her out. After she runs away from him, Castiel calls Sam and Dean to help find her before she gets in trouble. Meanwhile, Crowley faces his biggest challenge yet.

As the gang prepares to depart for the holidays, they quickly find they may be home alone when they are all trapped at the airport.

An auction in San Marcos brings Darrell and Brandon to their home turf and Mary finds a way to deal with inflated prices. Jarrod and Brandi buy a vintage piece that sends them spinning while Ivy discovers something that puts a song in his heart.

Tickle solidifies a stash location; Josh and Bill butt heads; Jim Tom and Roy return to action; Mark and Digger's still goes state-of-the-art; Mark and Jeff trick out their shine spot.

The Christmas celebrations are now in full swing but Will is not having a good time. With the lawsuit still pending, Laurie advises him to settle and move on with his life. Fiona and Andy attempt to create the perfect white Christmas for Marcus.

As the holidays approach, Mindy wonders if Danny is about to propose, and a case of mistaken identity leads Morgan on the perfect date.

When they return from Paris, Brody has to face the music for abandoning Mansfield and Jenny has to deal with the fact a spurned Harvard has fired almost everyone on the ground floor. Getting back in Mansfield's good books will be harder than Brody ever imagined, especially now that the number smart, but people challenged, Lindsay has already taken his place.

When a taxi cab driver is killed with an antique sword, it is just the start of the tangled web the anonymous caller weaves to draw Henry under his influence. But what is "Adam" really after?

The last four artists battle it out with emotional outbursts, explosive fights, incredible tattoos and total fails.

Abby has to try and recover from her public breakdown and save the "Girlfriends' Guide... " brand. Abby and Jake attempt to have a "good divorce" for the sake of the kids. Meanwhile, Lyla's ex-husband exacts revenge for his DUI and Phoebe asks Abby out to dinner.

Ghosts loom large as Jax makes the final moves to fulfill his father's legacy.

Nina makes friends with a spunky forensics analyst who takes the concept of loyalty a bit too seriously; Carlos gets worrisome glimpse into Phil's life.

Kathryn Bigelow, Juan Zarate

Sofia Vergara, JB Smoove, tUnE-yArDs

James Corden

Tonight Jimmy's guests are comedian Ricky Gervais and musician Steven Van Zandt. Musical guest will be hip hop recording artist ILoveMakonnen.

Ben Stiller, Olivia Munn, LaLa Brooks

Jim Jefferies, Rhys Darby and Al Madrigal compete to determine who has the funniest take on the day's pop culture.

Seth was joined by Rosario Dawson, Eugenio Derbez, and Bob Mould who sits in with the The 8G Band, plus music from Sturgill Simpson.

Michael Sheen

Leo attempts to help a mysterious new girl at school but soon realises that there's a lot more to her than he thought. Sue attempts to stop Simon finding out about her affair but Hector has other ideas.

The candidates are called to Tate Britain, where Lord Sugar tells them about the week's tasty task - tap into an emerging trend by creating a brand new range of premium puddings, before pitching in order to see them on the shelves of the country's major supermarkets.

In the kitchens, one team concocts a cheesecake infused with the nation's favourite drink, while the humble trifle undergoes an exotic makeover. The next day it's off to pitch their desserts to Britain's supermarket giants. One project manager gives strict instructions for the pitches - but will their team stick to the rules? While for one candidate in particular, everything hangs in the balance as the last meeting of the day sees them under extreme pressure.

In the boardroom, the orders are revealed. For one team, the sweet smell of success, but there's no sugar-coating for the losing team as Lord Sugar cooks up a storm. And there's a bittersweet twist in the tale before the boardroom once more hears the fateful phrase 'You're fired!'.

Tommy has left Flamingo and turned up as a DJ in a nightclub in Hafjell. Now he think it is about time that he gets his share of the profits and lays out a plan to get inside on the owner side. Everything goes brilliant, until Frank gets wind of that he has defied Frank's orders and not gone further than the neighboring community.