Lacey starts her new job at Palos Hills and Jenna has a wake-up call that puts everything almost back to normal.

Captain Holt receives death threats and Jake is put in charge of his security, a job he enjoys and abuses as much as he can. Meanwhile, Amy attempts to get the precinct to take a Christmas photo for Holt, but a lack of enthusiasm and Rosa's refusal to smile defeats her efforts. Also, Sergeant Terry Jeffords gets his mojo back.

Chief Boden prepares to counterattack McLeod in a final effort to save the firehouse from closure and the romance between Dawson and Casey escalates. Leon is making progress in the gang murder investigation, but Cruz cannot stand being left in the dark by Voight, fearing for his brother's safety. Meanwhile, Severide and Katie bond to make up for lost time and Otis feels uncomfortable living with Severide and Shay after Devon's latest escapade.

A farmer's debt is paid with the deed to a reindeer herd, giving Frank a business idea; Frank meets a new love interest; Jan must flee the country.

As the dust begins to settle, Jax’s world is suddenly turned upside down.

After a massive angel slaughter occurs, Sam and Dean arrive at the scene to investigate and are surprised to run into Castiel. While investigating, Castiel is captured and tortured. Meanwhile, Dean questions Ezekiel's demands and wonders if it might be time to tell Sam the truth.

Alison drops a bomb on the contestants: this week, another person will be going home. Before there's time to freak out, she informs them the one person chosen to go home will represent his or her entire team at next week's weigh-in and take the team trainer home for the week. A massive wheel with the contestants' faces on it is spun and the lucky/unlucky winner is... Jay from the White Team! Although Jillian is less than thrilled to go to Farmington, Missouri for the week, Jay is ecstatic to see his family again. He's greeted by a packed room of friends and family.

The pope might lead a secret life, the FDA targets trans fat, the McRib is scrutinized, a tech firm invents an office robot, and Ed Stone discusses the Voyager missions.

From "The Millers", actor Will Arnett; from the L.A. Lakers, NBA basketball player Pau Gasol.

Mindy plans an office Christmas party for the entire building, so she can spend more time with Cliff. However, things don't go Mindy's way when Brendan Deslaurier's date steals Mindy's thunder by performing a seductive "Santa Baby" dance for the party guests.

The results of the instant save and America's votes reveal the Top 5.