Cordelia’s attacker is revealed. Fiona looks to form an alliance with Marie Laveau. Nan learns a disturbing truth about Luke’s past.

Everything's easier when you have good friends.

After a fight with Cyrus Gold AKA the Acolyte, Oliver is drugged and left for dead. Determined to cure him, Felicity makes a risky decision. The cure causes Oliver to hallucinate, and what he sees forces him to confront his past. Meanwhile, Barry continues to help Felicity, and their connection grows stronger. The Arrow asks Lance to look into Gold, but when the stakeout on Gold goes bad, someone is killed. Roy is captured and tortured by Brother Blood.

When the BAU is called to Kansas City to investigate a series of murders, a tense reunion ensues between Blake and her father, a retired police captain, and her brother, a detective, who must work together to help solve the crime.

When a man is found murdered at an elaborate holiday party complete with real snow and live reindeer, the CSI team is brought in to investigate.

More college-football all-stars from the East/West bowl; Jordan's landlord searches his apartment; a man is taken aback by a coworker's sex appeal.

From "Saving Mr. Banks", actress Emma Thompson; singer Josh Groban presents the Top Ten List; comedian Andy Cohen; musical guest Nick Lowe.

Jay and Manny set out to cut down their own Christmas tree; Gloria is on edge when her mother visits; Mitchell does last-minute shopping to find the perfect gift for Lily.

Juliette is the main act at Teddy’s first annual Music City Festival, but the blowback by the fans and press over the Wentworths throws her for a loop and drags down the event. She demands that Glenn find out who leaked career-killing gossip to the tabloids so she can get ahead of the bad press by calling them out. Rayna is determined to buy herself out of her Edgehill contract once and for all, even though Tandy and Luke counsel otherwise. Should she risk all her assets on Highway 65? Deacon and Gunnar find themselves marginalized at the Festival and team up to to put on an unauthorized show, and Scarlett is freezing out Zoey and Gunnar but drawing closer to Avery.

When Wendy tries to prove a point about how much pressure little girls feel to look like celebrities, it gets her in trouble with everyone at school, and gets Clyde a new girlfriend.

Festivus comes to the Florida Capitol, Obama's handshake causes outrage, Mike Huckabee fights Obamacare with music, and Elizabeth Gilbert talks "The Signature of All Things ".

Actor and comedian Jim Gaffigan.

Axl wants to spend time with his friends when he comes home for Christmas; Sue's allergies threaten to ruin her holiday; Brick's lie is uncovered.

The foodies create dishes that remind them of home. Appearing: actor Anthony Mackie and chef Leah Chase.