A murder investigation prompts Gibbs and the team to play family counselor to his former mentor, Mike Franks, in the hopes of preventing a bloody international conflict.

The Top 18 dancers perform for the judges in hopes of becoming America's Favorite Dancer.

Navid and Gia (guest star Rumer Willis) launch an investigation into student drug use at West Beverly for Blaze News, which leads them to Annie's boyfriend, Jasper, leaving Annie torn over who to believe.

Fresh off his break-up with Adrianna, Navid receives dating advice from Samantha Ronson (appearing as herself) while out with Liam, Teddy and Ivy (guest star Gillian Zinser) at the Edison.

Worried that Adrianna will relapse, Naomi and Silver enlist Navid's assistance. Dixon reveals his situation with Sasha to Debbie and Harry, prompting Debbie to do some investigating.

Jen and Ryan meet up with Pharrell (appearing as himself) to watch a performance of N.E.R.D.

An image of Anna, the leader of the V's, is projected worldwide as she talks about people joining together; the V's are Tyler's ticket to being a part of something big, egotistical newscaster Chad gets an exclusive interview with Anna.

The players travel to Washington DC and get a tour of the White House. They meet the White House chef for the tour, and they are shown Michelle Obama's garden where she grows vegetables to eat in the White House. The contestants help to pick and prepare vegetables, then eat them at lunch. The weigh-in is held at the steps of the Lincoln Memorial.

Ben begins to bow under pressure as his wedding day fast approaches, thanks to a chance meeting with Kat and the arrival of Melissa's overbearing parents.

The first hour examines the factors that caused the split from the apes. The film explores the fossil of "Selam", also known as "Lucy's Child" - an amazing, nearly complete child fossil that helps shed light on our ancestors' early development and how we began to depart from that of chimps.

An electronic waste-recycling facility is visited in California. Also, Mike makes tofu in Honolulu.

Erica discovers there are limitations to what she can do for others.

The NCIS team must find a motive when they discover the body of a marine who had been living a double life as a wealthy bachelor.

The world of tomorrow is quickly becoming the futuristic world of today. While you may not be "beaming" to your next appointment, researchers are preparing for the first tests of a transporter. And while scientists have long mocked Hollywood's visions of warp speed a new generation of physicists continues to rewrite the fundamental rules of the universe. Is there a way around the cosmic speed limit?

Riley helps Jonah film a wedding, but the two get into a big fight in the middle of the ceremony. Putting her relationship with Jonah first, Riley breaks off her friendship with Auggie, who doesn't take the news very well. Ella discovers Lauren's expensive new clothing and lingerie plus a large envelope of cash and confronts her room-mate about the late nights she's been working. David fears he may be responsible for Sydney's death.

In the results show of seventh week another couple will be going home. Mark Ballas and Derek Hough will show their playing and singing skills together with Ballas Hough Band.

Justin finds himself in hot water after Kristin and Audrina meet. Heidi wants to have a baby, but Spencer has another plan.

Because the adult-film business has become a hindrance to SAMCRO, Clay uses the opportunity to revive the gun-running cartel. Meanwhile, Jax and Clay continue battling over club activities.

When a female skull is discovered near a railroad track, the Forgotten Network learns Jane Doe's only remaining relative, her comatose sister, could also be in danger.

Alicia and Will work together on the appeal of an inmate on a death row, and Alicia agrees to a conjugal visit with Peter to get information because her client was convicted during Peter's regime as the state's attorney.

The Jay Leno Show welcomes California Governor Arnold Schwarzenegger, Katie Featherston and Micha Sloat.

Erin has to pick up the slack when Olivia drops the ball on a big interview assignment for ELLE. Plus, Whitney finds out a shady secret about Freddie from his own brother.

David Plouffe

Andrew Sullivan

Al Gore, Brad Paisley, a Top Ten List presented by Michael Buble

The Tonight Show with Conan O'Brien welcomes guests actor Neil Patrick Harris, TV personality Paul Teutul Sr., and a musical performance by Creed.

The new pupils continue to clash with the old pupils at the school. Bolton is accused by Amy of attempted rape and he is questioned by Kim. Paul ends up being the only person who ends up believing Bolton is innocent. Steph receives a bad appraisal. Kim agrees to go out to dinner with Max.

Everyone wonders if Harry is dead or alive when there is still no sight of him. Section D manages to find out that Harry had managed to stop an operation to smuggle weapons-grade uranium into Iraq to make the war justifiable. The rogue officers who where behind it now want the uranium back no matter what the cost.

Guest host Claudia Winkleman and guest panelists Harry Shearer, Little Boots, Jamelia, and Tom Basden.