After Blair and Serena get into a catfight, Serena decides to get even with Blair, who has always dreamed of attending Yale, by ditching her plans to visit Brown, and instead accepting the Dean of Yale's personal invitation to visit the school. After discovering that none of his recommendation letters for Yale were ever submitted, Dan frantically tries to figure out a way to salvage his chances of getting into the school. While on the Yale campus, Chuck is kidnapped by a group of Skull and Bones members and Nate hooks up with a co-ed.

Bryce Larkin returns to town with news about Fulcrum. They have hired a wealthy software magnet named Von Hayes to decrypt information on a stolen chip containing a refresh to the Intersect with highly classified information. Bryce and Sarah have to pose as a married couple at Von Hayes' dining party to steal back the chip, while Chuck has to pose as a waiter.

Meanwhile, Morgan has an encounter with the Mighty Jocks at the Buy More.

Full of confidence following being named one of People's "30 to Watch Under 30", Raj hits on Penny and becomes impossibly arrogant.

Brent puts his own reputation into question by making Lacey participate in an eating contest; Oscar takes advantage of Emma's new mp3 player; Hank and Wanda end up in a battle due to Karen's auctioneering skills.

The dancers perform for week four.

When Ted is packing his stuff for his move to New Jersey, he discovers that the gang was going to hold an intervention for his engagement to Stella and demands they hold it anyway.

Claire decides to take on one of the villains herself, but she may not be as invulnerable as she believes. Nathan and Tracy search for the truth about their origins. Maya makes a shocking discovery. Hiro and Ando look for help in the most unlikely places.

Everyone's favorite bartender Owen returns to Tree Hill and introduces Nathan to a basketball team called Slamball who want Nathan to join the team. Lucas heads to Nebraska to kick off his book tour, leaving Peyton to deal with the repercussion of learning that Mick is her father. Meanwhile, Mouth continues to do brilliantly at his on-air position in Omaha and Brooke starts to pick up the pieces of her life.

Alan is sure that things will turn bad when Charlie starts dating his receptionist.

Shipments of poisoned African heroin are hitting the streets of Toronto. Junkies start dying from the toxic drugs and ICS must race to track down the smugglers. The investigation leads them to a Kenyan flower merchant, his troubled daughter, and a mysterious English woman named Abi Mitchell. As Kessler zeroes in on the African smugglers, Mitchell gives him much more that he bargained for.

Mel and Sam decide it's time to reveal their secret, with their first big big doctor's appointment coming up concerning the pregnancy.

Regina's old enemy is in a dance competition, and Regina desperately wants to beat her, but she needs Sam's help. There's only one problem, the new Sam has two left feet, unlike the old Sam who could dance. Meanwhile, Todd weasels his way back into Sam's apartment, just as she was looking to start her new independent life.

Sam manages to lose his pants while helping in the preparation of Dick's birthday party.

Alan Shore is called upon by ex-flame Phoebe Prentice to prove her husband's innocence in the murder of a nurse. But deep down, Alan's unrequited love for Phoebe makes him hope that her husband is guilty so that they can rekindle their relationship.

Horatio and the CSI team are pit against Miami's Russian mob after a barbaric double homicide in the Everglades.

Spencer sets an ultimatum for Holly to move out. Meanwhile Audrina checks which boy is best for her. Will it be Justin?

The implant in Edward's brain starts to go haywire, which makes strange things start to happen to Henry Spivey, which make him start to wonder about Paris, Russia, and his friends.

Jerry defends a client who he is sure is innocent. Jerry gets a sign that he should go with a bench trial, but it seems there are some politics going on in the background. Richard receives extra attention from his law student. Judge Kessler is called in for a favor.

Segments:

-Clusterf#@k to the Poor House

-Senior Financial Analyst Wyatt Cenac talks about the ups and downs of the stock market

-Sarah Palins troopergate scandal in VP's Troopers & Practical Jokes



Journalist and economic reporter Amity Shlaes discusses her new book The Forgotten Man: A New History of the Great Depression

Tonight Stephen welcomes syndicated columnist Kathleen Parker.



Also, Stephen talks with contributing editor for Vanity Fair Bethany McLean about computers causing the problems with the economy.

Ben's world is turned upside down after a drunken one-night stand. Dave must face up to the secrets of his past while Carbo strikes up a surprising friendship with unexpectedly romantic results.

Michael is found cleared of the herpes. The team arrives at a big surburban party and find a group of teenagers have stolen a gun from a security guard. Stella and Michael then go undercover to try and retrieve the stolen weapon. Michael then saves a high school boy from being severely beaten by kids from a rival high school.

After a recap of Ichigo's battles with Ulquiorra and Grimmjow, Ichigo takes Orihime and Nel and prepares to leave but an injured Grimmjow refuses to accept defeat. Ichigo tells him that it is over but their conversation is interrupted by the intervention of an unexpected enemy. Meanwhile, Uryuu and Renji find themselves in another bad situation.