When the leader of a powerful New York gang, El Puño, is found murdered, the CSIs must find the killer before a street war with a rival gang breaks out. Mac asks the co-founder of El Puño, Luther Devarro, a man he put behind bars years before, for help.
Cash and JT convince the team to allow them to take credit for the team's actions so they can earn money for Cash's mother's operation.
Ventura investigates the secretive Plum Island Animal Disease Center located off the coast of Long Island, New York, which has been suspected as being a bio-weapons research center responsible for the release of Lyme disease and other deadly viruses. He also learns that the facility is to be moved to Kansas, into the heart of cattle country, which could spell disaster if a dangerous contaminant was released into the nation's food supply.
The entire NYPD is mobilized to find the killer of an off-duty police officer murdered during a diamond heist.
The boys are scheduled to make their first TV appearance, but when it looks like they'll be bumped, they do whatever it takes to keep their spot.
Nicole Curtis takes on a run-down, 1902 Victorian-style home. When her contractor walks off the job, she manages to keep up the renovation work on her own, but falls behind schedule. In need of cash, she goes after an investor. To win him over, she transforms the bathroom, laying every tile herself and designing and constructing a beautiful vanity from an estate sale find.
Frustrated by unreliable workers and shoddy work, Nicole Curtis turns for help to her brother and cousin, both skilled carpenters. Together the family tackles the second floor, working miracles with salvaged wood to add detailed trim and repair the rotting entryway floor.
Mike gets on everyone's last nerve after his obnoxious antics get them all kicked out of a club. Even Pauly is frustrated after Mike proves twice that he's a failure as a wingman.
The CSI team investigates a mad slasher who strikes without leaving a trace -- because he wears a form-fitting black latex suit that leaves not a molecule of evidence behind
On show night, Liz Lemon grows increasingly infuriated when no one seems to remember that it's her 40th birthday. Just before the taping, Tracy Jordan becomes convinced that nothing is funnier than a performer laughing and breaking character, which he elects to do all night, much to Jenna Maroney's chagrin. Meanwhile, Jack Donaghy struggles with the consequences of his promise to give up drinking while Avery is pregnant. The episode was filmed twice. The East Coast version aired for the Eastern, Central and Mountain time zones. The West Coast version was aired in the western, Alaskan and Hawaiian time zones.
Emotions are stirred up at the practice when Dell's daughter arrives; a pregnant woman experiences chronic pain.
Newton, concerned about the consequences of a distressing development involving a high-ranking official, is forced to call to action a sleeping shapeshifter. As Walter and the rest of the team gather evidence, they move the investigation to Massive Dynamic, where Olivia goes on high alert and Walter finds himself in a perilous situation.
Jeff and the group must salvage an aging museum exhibit that Dean Pelton wants as the centerpiece of Greendale's proposed aerospace training program.
Karl travels to Mexico where he pays a visit to Chichen Itza. He also tries his hand at wrestling, learns how to become a cowboy, and hunts for a Mexican jumping bean.
Patrick Jane and the CBI team are called in to investigate the murder of a convict who served nine years for rape and murder, but was recently released on DNA evidence.
An embarrassing secret of Wolowitz's comes to light, while Sheldon and Raj have a small war at work.
In the East African country of Kenya, the local Maasai tribe claims a massive volcanic crater is haunted by the 60,000 warriors who where killed there during a bloody civil war in the 1800s. Battle cries, shadows, and strange noises are all reported to emanate from the center of what's called the Menengai Crater. Could Madagascar be the home to a small but dangerous creature called the Kalanoro? That idea might not be too far fetched since this island off the coast of Africa is the home to several animals that are not found anywhere else in the world. Stories of the mischievous Kalanoro date back 2,000 years, but recent sightings imply the dangerous, two-foot tall, humanoid monster may be back.
Pete spares Andre no grief after announcing plans to run a marathon. Kevin and Jenny seek balance between conflicting roles as both spouses and league adversaries. Ruxin offends a colleague, but Taco's new venture as a notary may be the solution.
After a skull and decomposing hands are found in a dumpster, the team must not only solve the crime but also search for the rest of the victim’s remains. Identified as Ray Raminsky, the victim turns out to be a bounty hunter in search of Charles Braverman, a man indicted for the murder of a co-worker. Meanwhile, Brennan is asked by Professor Bunsen Jude “The Science Dude” (guest star Grier) if he can shoot an episode of his children’s show from The Jeffersonian Lab with Brennan as his special guest. Brennan initially turns him down, but is surprised when he makes her a deal she can’t refuse, so she takes him on as a new “squintern.” As the team pieces together the details of the crime, they discover that they are not alone in the hunt for Braverman and find themselves in a chase with an unexpected suspect.