Christine tries to prove to everyone and herself that she is capable of being independent after Matthew and Barb both decide to move out of the house and Ritchie leaves for a sleep-away science camp.

Contestants from around the country have performed tirelessly, faced the judges and endured the grueling competition during the Hollywood Round. Tonight the judges decide which hopefuls make the final cut and earn coveted spots in the Top 36.

Mike investigates a case of a plane crash and discovers that the crash was faked. The plane had been carrying a federal witness, a 10 year old boy who witnessed the killing of his father. When Mike tries to help the DEA agent investigating the case, he ends up getting arrested. Mike realizes that it is up to him to find the missing witness before he is killed. Meanwhile, Sarah tries to secure the future and independence of the SSC.

Gary starts to panic after he and Dennis' sister start spending a lot of time together, and share a brief kiss, which prompts her to start to smother Gary and Dennis to start talking about the two of them getting married.

The mother of an abducted child works with the BAU to apprehend a serial killer who kidnaps, murders, and embalms his victims.

Locke takes on the burden to stop the island's increasingly violent shifts through time. Meanwhile, Ben hits a roadblock in his attempt to reunite the Oceanic 6 and bring them back to the island.

When Miranda and Calvin have trouble conceiving, they consult a doctor, whose orders leave Calvin overly fatigued. Meanwhile, Malik is hired as an errand-runner at the barbershop, but things get hairy when he settles on cutting a customer's hair.

Striving to lose weight, Ella enters a health-and-wellness ranch--with Curtis in tow. There, the two happen upon Ella's erstwhile trainer, Francois.

Erica is sent back to fix her sister's relationship.

Adam heads to Beth's Cafe in Seattle for their 12 egg omelet. He then visits Red Mill Burgers for a sample of their double bacon deluxe with cheese.

Two seperate cases turn into one when one girl turns up dead and another is missing. It all turns out to be due to a slave trafficking ring running out of the city. Also Detective Flack is back on duty after recently being cleared.

An Army recruitment center is bombed. An unconscious woman and a dead baby are found in the wreckage.

Patty uses the media to lower UNR's stock. In retaliation, they sue her with defamation charges. Patty has an unlikely aide at her side in secrecy. Ellen goes back to David's apartment for the first time in months and deals with the repercussions and a new surprise waiting for her.

The team investigates the death of a heavy metal lead singer, who was suffocated to death. They question all the other band members and learn that the previous lead singer of that group have problems with the dead singer after he was kicked of the band. When they get the former singer, he seems to have a legitimate alibi. Then the team stumbles with a homeless man who appears to be a groupie. Could this groupie be the murderer? Meanwhile, Crews learns that his father's wedding to Olivia has been called off.

The contestants make a final bid for the four finale spots, showing off their skills and their best dishes.

When rock star Sebastian Grace receives a death threat, Sam and Chris are exposed to the rock-and-roll lifestyle that includes one of Grace's groupies called "Rocket Girl." Things really get strange when Chris finds Sebastian and Rocket Girl waiting for UFOs in the swampy area of New Jersey known as the Meadowlands.

Ryan wants to know the secret which Katelyn has been keeping from him.

Demetri Martin's conceptual sketch-comedy show, which is augmented by stand-up, music and animation, begins with an exploration of "Timing" that includes a time-traveling gigolo and a bit about an ill-tempered actor featuring Amanda Peet.

Author of Two Billion Cars: Driving Toward Sustainability, Daniel Sperling

Tonight Stephen welcomes the author of The Stuff of Thought: Language as a Window into Human Nature, Steven Pinker.

In the season finale, past victims of the gang's cons team up to bring down the team and get their money back.

Pandora throws a party which descends into chaos with the arrival of Katie's drunken friends. Pandora, completely unaware of the ingredients, indulges in some special brownies causing her to lose all inhibitions and jeapordize her friendship with Effy.