As the Carringtons track down a dangerous enemy on Christmas Eve, Fallon and Blake clash on how to best handle the situation, stirring up unresolved grievances. Meanwhile, Cristal suspects Alexis may not be telling the whole truth to the authorities, and Kirby is cast out by Anders for having an immature reaction to the grave situation at hand.

Sarah Tiana and Clayton English join the gang to shoot from the hip as they take aim at ways to combat gun violence.

The queens audition for a new supergroup by performing choreographed numbers featuring the legendary Stacy Layne Matthews, and guest judges Kacey Musgraves and Ciara stop by.

Warren and the others must free the Talkers being held in Quarantine and prepare to attack Altura.

MacLaren urges Yates to help him when a Traveler with a mission vital to humanity's survival arrives in the body of a just-captured serial killer.

Manfred and Kai team up against a common foe. Olivia and Bobo search for a way to bring Fiji back to their side. Joe gets a surprising visitor.

The flu brings Parker's operation to its knees, and it's up to foreman Dean to keep the claim running; Rick's mechanic, Carl, behaves strangely and reveals shocking news; Tony hits rock bottom as his entire operation grinds to a halt.

Scarlett is reunited with Axel but he is badly injured before they can find Vanessa. A mysterious man helps them find their way. Flesh and Jolene are fugitives on the run from Blaktek.

A roundup of our favorite moments from 2018, featuring Kevin Hart, Ariana Grande, Chadwick Boseman and more!

Stephen welcomes actress Laura Benanti, comic Jon Stewart, with musical guest Jon Batiste & Stay Human.

Jackson and Ramona's first high school party has major consequences. Becky and Jesse team up to host an awards show, where a big win goes to Matt's head.

The crew heads to the planet Drazan to participate in the festivities of Clear Day, but Allura is plagued by nightmares when she stays behind to rest.

The kids struggle with their new lives as Runaways, but find a hideout. Alex goes to work for Darius while PRIDE plots to kill Jonah. Jonah initiates a plan to build a new box.

Dick takes a dark journey back to Gotham.

After Corey's revelation at the morgue, Cal realizes she holds a crucial piece of the puzzle. With Augie in danger, she has only one choice.

When their planet's monarchy is overthrown by a coup, royal alien teens Aja and Krel flee to Earth accompanied by their brutish bodyguard.

Zeynep seeks Timur's help for her dad. Faysal Erdem disapproves of Mazhar's recent actions. Leyla feels conflicted about her relationship with Hakan.

To find a girl who disappeared under mysterious circumstances, a young priest puts his faith in a demon hunter who's known for his unorthodox methods.

The Autobot team finally discovers the location of the Ark.

Based on the classic novel, Watership Down tells the story of a gang of ragtag rabbits embarking on an epic adventure in search of a new home after their warren is destroyed.

In a quest to find female rabbits to populate Watership Down, the band of rabbits discovers a neighbouring warren... but all is not as it seems.

Dylan faces a traumatic Christmas in Resus. Noel is delighted to have met his Christmas fundraising goal, but can't quite decide on a charity to give the money to.

The host presents a festive edition of the show. He is joined on the sofa by former X Files and The Fall star Gillian Anderson, fellow Hollywood actor Rob Lowe, 2018 Great British Bake Off winner Rahul Mandal, comedian Tom Allen and actress Sheridan Smith. Plus, there is music by John Legend and the Kingdom Choir, who were part of the celebrations during the wedding of Prince Harry and Meghan Markle in May.