Abby has to take over a top secret government mission when their scientist goes missing, but soon realizes things may not be as they seem to be, while the rest of the team worries about Abby's safety.

The American Idol finalists take the stage to perform live for the nation. The contestants will sing their hearts out in hopes of winning America's vote and surviving another week in the competition. Tune in to see who impresses the judges and who buckles under the pressure.

Tonight's Theme Is: Songs From The Year The Contestants Were Born

Performing Tonight Are:
Adam Lambert
Allison Iraheta
Anoop Desai
Danny Gokey
Kris Allen
Lil Rounds
Matt Giraud
Scott MacIntyre

A two hour look back at the highs and lows of Season four of Deadliest Catch.

Silver, distraught from all the recent film commotion and Dixon's not-so-positive reaction, disappears into the night. Kelly enlists Ryan's help in finding her sister, but cannot seem to figure out why she is acting so erratically. Meanwhile, Dixon breaks the video news to Debbie and Harry, and Navid and Adrianna get a preview of parenthood when they babysit Sammy.

Week five brings another elimination for one team, after Grammy Award singer Etta James and Demi Lovato each sing, while the second Macy's Stars of Dance perform.

Previous winners Ali Vincent and Michelle Aguilar take over the hosting duties from Ali Sweeney at the ranch. Elsewhere, the competition is changed by the addition of new arrivals; a medical setback befalls one player; the contestants are suspended over a pool in a balance challenge; and Bob holds last chance workouts at the beach.

In 1987, NOVA's cameras began rolling to chronicle the lives of seven young, bright medical students embarking on the longest and most rigorous endeavor in higher education: the years-long journey to become a doctor. From their first days at Harvard Medical School to the present day, none of them could have predicted what it would take, personally and professionally. In "Doctors' Diaries", a two-hour special, NOVA returns to find out what sorts of doctors-and people-the seven young students have become. The program is the latest installment in the longest-running U.S. documentary of its kind.

Sam is sent on a road trip to catch a soul, and he takes the gang along. When he gets to the town, however, he finds that a tentacled beast has taken over.

Olivia makes a bond with a mysterious child that was living alone underground. Meanwhile, a serial killer reemerges.

When a Hollywood movie producer is murdered, the CBI is brought in to investigate.

On the set of her Dove commercial shoot in Los Angeles, Sarah immediately clashes with the nightmare director and becomes irritated when Mason won't stand up for her in front of the client. Determined to save his group, Tony tries to poach a neglected account from a rival group. He even decides to make Conner his partner in the endeavor, widening the gulf that has developed between Conner and Mason.

A woman who works for a telegraph company was found murdered. Detective Murdoch asks for Enid's help since she has worked as telegraphist. Brackenreid's behavior is becoming very erratic. His wife has asked him to leave the house for the time being. Murdoch asks Julia to ascertain what is wrong with him. It appears that he is trying to quit drinking and he takes a little help called the gold cure.

The gang tries to find out who P.J.'s mystery boyfriend is. Bobby and P.J. try to keep their relationship a secret. Brendan is busy trying to get his club ready for business, and Andy is happy to get a night off.

A turf war ensues when Stabler and Tutuola link an artist's murder to a serial killer, and the detective assigned to that case focuses more on their involvement in an investigation he believes belongs solely to him than on identifying the killer.

Tommy copes with the loss of his father and a new man in Janet's life. Sheila finds a different way to deal with her issues while Sean, Franco, and Mike concoct a surefire way to get rich and laid.

The suspect list keeps growing as the team investigates the disappearance of a Russian matchmaker.

Mason finally gets the recognition he so desperately craves when Denise gives him the credit, and another promotion, for winning a massive account for the team. While Conner gets an update about his short-lived relationship with Diane, Sarah is questioning whether to continue her current relationship or the best way to end it.

After attending to a gunfire in Chinatown with several dead people, Toby ends up helping Kim Chu to solve who killed her brother. As he gets his telephatic thoughts he realizes her brother might have been involved into human trafficking.

Felix makes arrangements to do a party for his parents 40th wedding anniversary. Meanwhile Trevor feels there is a match between Claire's friend and a private investigator.

Guests: Jehan Sadat, the widow of the assassinated Egyptian president Anwar Sadat talks about her book My Hope for Peace.

Tonight Stephen welcomes Jordan's Queen Noor.

Philip feels that he needs to lose his virginity. Flick discovers how Marley betrayed her. When the Home Office show up, Kim is worried.

Barry and Julie Surtees decide to build a four storey modern mansion in their home city of Brighton, complete with pool, gym, artist's studio, fantasy bedroom and Japanese roof garden

This week the two teams have to create a new piece of portable gym equipment and create a poster advertising it. They then have to demonstrate the equipment. At the end of the show one of the candidates from the loosing show is fired by Sir Alan.

Charlie Brooker sets his satirical sights on news and current affairs, looking at how news anchors and their styles have changed over the years and reflecting on how they do it over in America.

Plus, a short film by Power of Nightmares creator Adam Curtis, a look at what's happening with the war against terror and a poem by Tim Key.