While trying to find out who framed him, Hopper is starting to figure out what his partner, Andrea, did that caused her disagreement with Internal Affairs.
Some of the residents of Jericho are concerned that Gray's actions may actually make Gray the new mayor. In other news, Mitchell claims that Jonah is the killer under much speculation.
While investigating the death of a film student who was working on a documentary about the legend of a headless witch who haunted the woods in the 1700s, Brennan develops a strong bond with the victim's brother.
As the Ravens prepare for the championship, Lucas learns Nathan intends to throw the game and decides on a risky plan to even the odds. Karen insists Deb show up for her son's final game and tries to help her get there. Also Dan makes a last plea with Daunte.
The BAU is called to investigate a series of murders of prostitutes in Washington D.C. and Reid suspects a teenager he met asking for his help is guilty of the crimes. The case becomes complicated when a congresswoman, who about to make a speech to praise the city's lower crime rate, threatens to take away the case if Hotchner calls a press conference to discuss it.
The murders continue, and L grows suspicious of Light’s too-perfect behavior and decides to investigate him on his own. In order to get closer to Light, L enrolls at the same university and reveals himself to be L.
A serial killer from the past begins to possess people so he can kill again. Allison races against the clock to save his next victim, but she becomes a target in the process.
After the campus rapist anonymously announces the location of his next rape, Veronica hires her friends to help her track him down, but is shocked when she discovers the rapist's identity. Meanwhile, Logan makes a drastic decision about his future with Veronica, and Dean O'Dell hires Keith to prove that his wife is unfaithful.
House takes the case of a young girl who has been diagnosed with pancreatitis. When he takes her divorced parents to court to force them to allow treatment because they can't agree, the judge awards guardianship of the girl to Cuddy. Meanwhile, Tritter continues his strategy to force House to admit to his drug use by offering one of the team members a deal.
Christopher's well-intentioned gesture at Stars Hollow's knit-a-thon brings the event to an early end.
Mike Rowe wrangles some water snakes, steps into the shoes of hard working bait and lobster fishermen in Maine, and opens the viewer mail bag which results in some seaweed trimming.
Jonas heads off to the Democratic Republic of Georgia and finds himself in trouble. On the home front, Mack and Tiffy are fighting her legal troubles and Colonel Ryan is going head to head with the vice president's men.
This episode demonstrates the production processes for halogen bulbs, aluminum ladders, cellulose insulation and bamboo fly rods, and shows how each is made.
When a burnt and mummified body of a missing and wanted person is found in a furnace on a Marine base, NCIS must work with the FBI. The burnt man turns out to be a serial killer.
Sean drinks to a great extent as he spends a depressing Christmas without his family; Christian gets an surprising gift when a 3-year old Wilber comes back into his life; and James pressures Michelle to help as she takes forceful measures to fill her holiday kidney quota.
Lincoln's obsession with Shirley takes a dangerous turn; Jerry and Alan's collaboration in a murder trial leads to a scotch-and-cigar session, which makes Denny jealous.
Julie thinks about going on a date with Matt. A discouraged Smash turns to foul play to improve his on-pitch performance. Cheered by Lyla and Tim, Jason has his first quad rugby game. A dinner turns into a fight for Coach Taylor, Tami, Riggins and his brother.
After Danielle Masoner dies in Central Park, Stabler follows the leads to a homeless man who turns out to be a better witness than he thought. Paired up again with Benson, Stabler investigates her death, but it keeps bringing up memories of Dani Beck for him. During the course of the investigation, Benson and Stabler learn that Danielle's husband was sleeping with a friend of theirs, leading the squad to suspect first him, but their suspicion soon turns to the husband of the other woman.