The team take on the case of a fitness guru on an all-natural diet who collapsed while filming a video. Meanwhile, Foreman conducts Huntington's Disease drug trials and Thirteen signs on as a subject, Cuddy is forced to move into House's office, and Kutner uses House's name to run an online medical-advice website.

While investigating the death of a petty officer in a car crash, the NCIS team learns of his violent secret life; underground street fighting.

It's one of the most eagerly-anticipated events of every Biggest Loser season - the makeover episode! This season, the remaining five contestants are whisked away to New York City for amazing makeovers that will show how far they've really come in their weight-loss journeys. After getting new hairstyles at a top salon, the contestants are off to Macy's, where Project Runway winner Christian Siriano helps them pick out new outfits to show off their skinnier new figures. Later, after their transformations are complete, the made-over contestants are revealed on the Tyra Banks Show, unaware that their loved ones are waiting to surprise them! After enjoying a day in New York with their family members, they head back to the Biggest Loser ranch. There, the contestants are tested with a wild challenge that becomes a huge victory for one player struggling to overcome her fears.

When Rita is called for jury duty and Jay, after much of Rita's nagging, joins a committee that turns out to be just an excuse for dads to watch sports, they enjoy how relaxing their new responsibilities are and realize they need to make free time a priority. Much to Rita's dismay, Hallie and Kip become vegetarians.

When the girls lose a blanket belonging to one of the twins during care of them, Jim gives them extra chores and housework to punish them for it.

Dana is moving away, and Cheryl turns Jim into her new best friend, and he scrambles to find a replacement for Dana to keep from becoming one.

Mike visits a maggot farm in Idaho and later tries to help relocate a giant cactus in Arizona ahead of an oncoming storm.

The team is called in to investigate a bank robbery when one of the thieves is found embedded in a solid wall. Walter believes they're after something of his, but things take a turn for the worse when the thieves ambush one of them.

A murder in a small town is investigated and soon turns out to be an act of vengeance.

The death of a marine who was pregnant by a rapist puts the unit at odds with the Pentagon when they fight to keep the case, and Benson's flashbacks of her own assault may further impede the investigation.

A doctor goes missing shortly after treating a patient and the team suspects a secret from her past is connected to her disappearance.

Eli envisions himself within his father's body. Taylor has news to tell Matt about her pregnancy. Keith presumes the worst of Patti's daughter.

As man moves to colonize the cosmos, the realities of sexual relationships and reproduction need to be addressed. Probe the physiological, psychological and cultural challenges of sex in space. From the sex act through birth, look at how the extreme environments of space exploration might effect copulation, conception and developing human tissues, as well as how issues around sex might impact the emotional lives of astronauts. Get to the bottom of the rumors to find out if space sex has already happened, and look at how the burgeoning space tourism business may soon lead to a boom in space sex.

Poet Calvin Trillin talks about his new book Deciding the Next Decider: The 2008 Presidential Race in Rhyme .

Tonight Stephen welcomes the author of Prisoners: A Story of Friendship and Terror, Jeffrey Goldberg.