Claire tries to determine who is responsible for the attacks on Gretchen and Annie. Sylar maintains his control of Matt, and Peter uses his newly gained ability to help Emma.

After a wild night out, a teenage girl is brought to Princeton Plainsboro with severely swollen appendages. The team must work to diagnose the young girl, who is less than honest about what happened the night she fell ill. As her condition worsens, she becomes unable to distinguish fact from fiction. Meanwhile, Cuddy, Wilson, and House spend a weekend away from the hospital to attend a medical conference, but things don't go as planned when House's private investigator, Lucas, returns.

Lily comes up with a perfect plan to break up the relationship between Barney and Robin when they have a rough patch, but she needs help from Robin's famous friend, Alan Thicke, in order to make it work.

Brooke receives some surprising news that threatens her relationship with Julian. Nathan learns that Dan is back in Tree Hill just as he prepares to sign a new NBA contract. Haley returns to the stage.

Charles' career plans worry Cassie when he talks about joining the military, and Lizzie's budding thespian career may be cut short when the school musical is canceled.

The ingredients for that beguiling Japanese concoction, miso soup, may seem a bit unusual until host Alton Brown demystifies them and explores the wonders of the Japanese pantry.

The five remaining couples have first to perform an unlearned ballroom dance, then they have to show their skills in Latin dance, which will be connected to a certain period of time or theme.

Yasir accidentally breaks Thorne's statue of Jesus and when he tries to secretly replace it, Yasir receives an unexpected surprise.

Billie requests Abby and Nick to be Godparents, but unintentionally, it causes them to break up. However, Billie has to stop Abby before she does something she will regret when a night with Davis on the town goes too far.

Charlie and Alan awaken to find themselves in bed with a stranger.

Lizzie finds herself in trouble after an incident at school, and Cassie's art may take her back to New York City for college.

Not satisfied with just being Queen of Constance Billard, Jenny sets her sights on becoming the Queen of all the Upper East Side by landing the hottest escort for Cotillion. Nate and Chuck plot to help Serena and Blair repair their damaged friendship. Dan is upset when Olivia contemplates leaving school for a movie project.

When a government witness is murdered, the FBI hires The Lightman Group to determine who leaked the witness' whereabouts to the killers and to protect Agent Reynolds, the star witness in the case. When Reynolds refuses to testify in the case, Lightman and Foster learn he is hiding something in his past.

Glenn risks everything to follow his heart's desire. Rabbit helps a patient cope with a tragic loss. And an old friend surprises Marisa.

After a fight between Leonard and Penny has some influence on his life, Sheldon is forced to play peacemaker in order to get the couple back together.

When a wannabe model goes missing, Horatio and the team start a search, but when looking into the case, the team uncovers a network of prostitution and murder.

When Rita's judgmental mother announces that she is coming for a visit, she begins doing excessive house-cleaning and hiding of junk food. But when she arrives with a much more relaxed attitude, Rita assumes that something is up.

After a bike messenger, carrying a package with content that is able to free a wrongly convicted man from pison, is brutally murdered, Castle and Beckett need to investigate the case. But they are surprised to find out that the tragic death is linked to another murder case previously investigated by Captain Montgomery. Now, in order to solve the new murder, Castle and Beckett must dig deep and discover all the secrets of a prominent New York family.

The Jay Leno Show welcomes actor Dane Cook and writer Diablo Cody.

Coming Soon...

Rita worries about traveling to attend a work seminar because of Jay and her mother's constant bickering at home. With Rita away, the situation worsens when the two realize the garage door was left open and Rita's guitar has disappeared. Swoosie Kurtz guest stars.

Sen. Christopher Bond

Thomas Campbell

Bill Murray, Gabourey "Gabby" Sidibe

Kelsey Grammer, Major Brian Dennis and his Iraqi dog of war Nubs, David Gray

Ichigo continues fighting Senbonzakura while Kenpachi fights Byakuya, but Ashisogi Jizo appears and using its bankai, spraying poison gas over the battlefield, enabling Senbonzakura and Byakuya to escape. Yachiru chases Ashisogi Jizo and he gets captured by Zaraki. Mayuri blows up Ashisogi Jizo, causing it to return sealed form and break. Soifon has difficulty hitting the small Suzumebachi, but manages to defeat her, and Yoruichi congratulates her. Unohana arrives to treat the victims of Ashisogi Jizo's poisoning, including Momo, Isane, Rangiku and Iba. Yoruichi meets with Ichigo and the captains, and reveals that she knows Yamamoto's location. Yamamoto is then shown as a prisoner of the zanpakuto, with Sogyo no Kotowari, Katen Kyokotsu, and Minazuki encasing him in a barrier.

Linden's daughter, Holly, comes back into his life after her grandparents learn that she plans to leave college and move out. Jac manages to earn Oliver's respect. Penny decides to avoid Thandie and act on Elliot's advise.

Talking is something that is unique to humans, yet it still remains a mystery. Horizon meets the scientists beginning to unlock the secrets of speech - including a father who is filming every second of his son's first three years in order to discover how we learn to talk, the autistic savant who can speak more than 20 languages, and the first scientist to identify a gene that makes speech possible. Horizon also hears from the godfather of linguistics, Noam Chomsky, the first to suggest that our ability to talk is innate. A unique experiment shows how a new alien language can emerge in just one afternoon, in a bid to understand where language comes from and why it is the way it is.