After Matty asks for permission to take Bailey to prom, Jenna reevaluates who she has become and who she wants to be.

It's time for the Abbey Grove Christmas Play and with Miss Pickwell no longer around Fraser decides Alfie is the obvious replacement to direct this year's production. But with the class undecided about whether to put on the Nutcracker or Robocop, will Alfie's decision to write and direct a plot mash up of Robocracker and casting school bully Grayson as co-star prove successful?

Episode info coming soon ..

From "Anchorman: The Legend Continues", actor Paul Rudd; journalist Barbara Walters presents the Top Ten List; from "The Wolf of Wall Street", actress Cristin Milioti; musical guests Alt-J.

After a mysterious illness strikes children from military families, Gibbs and the team investigate the cause. Meanwhile, Abby and Jimmy partner with the Naval Medical Research Center to determine the strain of illness, all in hopes of delivering a cure before the holidays. Also, Director Vance struggles with forgiveness as his estranged father-in-law makes a surprise visit to his home.

A senator’s daughter is the victim of a home invasion. The team investigate to determine if it was a random crime or a targeted attack due to her father’s crackdown on international cyber warfare. Meanwhile, Kensi’s holiday spirit changes after she receives a surprise Christmas gift.

Flashbacks reveal Finch's creation of the machine; Reese hits the road, leaving the team to deal with the aftermath of their war with HR.

The contestants meet Alison for this week's Ring of Fire Challenge. Before the challenge begins, Alison informs the contestants that the competition is moving to singles. Once they've received their individual jerseys, the competition begins. The contestants must hold a 20-foot metal rod in a ring of fire as long as they can. The bar weighs 20% of the contestant's weight, and they're competing for a one-pound advantage. It's a respectable prize, and all of the contestants are eager for a big win.

Edward Snowden seeks political asylum in Brazil, China embraces pollution, Ted Cruz gets his own coloring book, and Garry Trudeau discusses his show, "Alpha House."

From "Mistresses (US)", actress Alyssa Milano; actor and musician Wilford Brimley; musical guests Wilford Brimley with The Jeff Hamilton Trio.

A new Voice champion is crowned.