It's makeover time! The geeks get their new looks and later put them to the test in the Beauty and the Geek prom, where one of them is named king. Meanwhile, the beauties are required to teach a third-grade class.

When Ducky realizes that one of his cadavers used for research is actually a victim of murder, the NCIS team identifies him as a criminal genius who is capable of deleting the past.

Eddie's father returns, bent on revenge when he thinks he sees the man who murdered his wife, and Cassie is jealous when she sees Charles with someone else, despite the attentions of her boss.

Joel, Nick, and Andy visit a frozen-yogurt shop, and Nick falls for the hot cavewoman who works there.

This is the fourth live results show. Who will stay and who will go? Gloria Estefan performs

The remaining teams compete in a special challenge testing the contestants' perseverance, with the winning team getting a surprise from home. After the weigh-in, one contestant is sent home.

An examination of the gatekeeper role played by the epigenome, which can shape everything from whether people develop diseases to whether they are fat or slim by turning on and off specific genes. Also: how a person's habits - good and bad - may affect future generations.

Sam requests some time off to go to a concert with Andi, but the Devil refuses and points out that vacation periods are not part of his contract. Therefore, Sam is given a white dove as his next vessel and is sent to capture an escaped magician who kills anyone who does not appreciate his act.

Laird is the topic of the night when Gracen asks Leila who she fantasizes about, in an attempt to spice things up in the bedroom. Gracen doesn't like the answer and it causes problems in the carpool.

Shirley is compelled to help an old friend of Denny who is discharged from the army for coming out publicly as being gay, but finds resistance from the judge for challenging America during war time.



Meanwhile, Alan's "word salad" returns whenever Lorraine is around, and new associate Whitney Rome is thrown into a case involving a bullfighting child whose mother wants sole custody.

The only witness to a young woman's horrific beating is her mentally challenged daughter.

The team travels to Abidjan, Ivory Coast to aid personnel from the American Embassy. They must get the Americans and their families out of the area.



On the home front, Jonass daughter has enlisted in the Army and he wants to train her as well as to test her resolve.

Alex goes up against both Pancho and Isabel as the family experiences their first major split since Alex took over as CEO. Meanwhile, Pancho reveals a deep secret and Alex's past with the Quinones resurfaces.

Tonight, actress and star of the new movie Rendition, Meryl Streep.



Jon begins tonight's show with "Clusterf@#k to the White House" and clips of Hillary Clinton on The View, Obama sharpening his elbows by criticizing Hillary, Republican candidate proclamations that they are true conservatives, and Stephen Colbert drops by to announce his potential run for the White House.



Finally, Jon takes a look at the recent remarks made by retired Lt. General Ricardo Sanchez criticizing the Iraq War in a segment called "Now You Tell Us".

Tonight Stephen welcomes Los Angeles Times correspondent and author of Curveball: Spies, Lies and the Con Man Who Caused a War, Bob Drogin.



Also, Stephen talks with CBS political analyst Jeff Greenfield about Stephen's candidacy for President.

Ichigo. Uryuu and Chad arrive in Hueco Mundo to find themselves in strange building. They are able to survive and avoid most of the traps but they must then find a way out of the building and deal with the guards who are there to get rid of any trespassers who dare to enter. Finally, Chad and Uryuu's new powers will be tested in a real situation.