In the ultimate adaptability challenge, contestants from the Red and Blue teams are given 30 minutes to shine, as each team member must create an entrée with four surprise ingredients in a hidden dome challenge. Chef Ramsay and VIP guest judge, Chef Michael Cimarusti, will determine which team will be treated to a beachside lunch and volleyball lesson with Kerri Walsh Jennings and which team will stay behind to do the kitchen chores. Later, tensions rise as Chef Ramsay announces it is time for 1:1 performance evaluations. Then, for the first time in HELL'S KITCHEN history, Chef Ramsay pits the lowest-ranking chefs from each team against each other, beginning an emotional elimination round.

Only 4 contestants remain in the competition to become the next "American Idol". One of those final 4 will be voted out of the running tonight?.

A bad day causes Penny to reevaluate her life choices - including Leonard. Meanwhile, Howard and Bernadette struggle to care for Mrs. Wolowitz, and Raj gets relationship advice from Sheldon.

When Stefan and Elena escape from Markos' control, only to find themselves stranded in a remote location, Stefan gets philosophical with Elena about her relationship with Damon. After their attempt to protect the dopplegangers goes badly, Liv and Luke come up with a dangerous new strategy. Damon recruits Matt and Jeremy to help him set a trap for Markos, who turns out to have a devastating surprise of his own. Bonnie finally admits to Caroline that she's been keeping the truth about the Other Side from everyone. Finally, while Bonnie searches desperately for a way to stop Markos, Caroline is witness to an unthinkable act of violence by one of the Travelers.

Nathan introduces his boss, Ed Dolan, to Tom in hopes they'll hit it off and hang out together, but surprisingly, Dolan only has eyes for Carol.

Mary and Catherine form an unlikely alliance when deciding how to deal with the increasingly manic King Henry, which puts Francis in jeopardy. Bash finds a boy who lived to tell about his encounter with the Darkness, which makes Bash determined to end it for good at any cost. Lord Julien reveals the truth about his motives, and Lola, blinded by love, finds herself in a dire situation after she attempts to protect him.

George is thrilled to be dating a wealthy woman until he realizes he doesn't enjoy being her boy-toy.

With Derek away, Meredith spends time with Amelia and finds out her true feelings about her time in Seattle. Bailey deals with the ramifications of her actions and Callie receives devastating news. Meanwhile, the residents panic after hearing that one of them will be fired.

Alan finally comes clean with Larry about he and Lyndsey. The fallout has ramifications for both weddings, with a twist no one saw coming.

Wing it with the Pawn Stars when a test piece of Howard Hughes' Spruce Goose flies into the shop. Will Rick and Chumlee take off with a part of this famous aircraft or will the asking price be sky high? Then, Rick sees stars when celebrity paintings by artist Stephen Fishwick are brought in. Can he see the big picture or will he paint himself into a corner? And later, it's any man's game when the guys make a wager over which donut Rick will eat. Will one of them scoop the pot or will Rick put an end to their hunger games?

Harry tries to charm everyone by introducing his delinquent brother Frank. But everyone likes Frank.

Jack and Joanne are at odds with each other when both kids betray their trust - Frankie has his first taste of alcohol at a varsity baseball party, and Rachel wants to go on birth control.

When the faculty faces district teacher evaluations, Principal Carl asks Meredith to assist Ginny with student engagement. Meanwhile, Lily tries to convince Irene that Meredith is taking advantage of her friendship.

Ante up with the Pawn Stars when a poker cheating device finds its way into the shop. Will the guys cash in their chips and score this devilish instrument of deception or be forced to fold? Then, a mysterious suicide ring believed to be from WWII finds its way into Rick's fingers. Will he move in for the kill or be stopped dead in his tracks? And later, Chum hosts his own poker night, but will his party be a full house or a royal flush?

Charlie lets his house become a halfway house for five hookers.

Will reveals to Catherine he's slept with the hostess at his restaurant in retaliation for her betrayal. Bickman's ego gets the best of him when he performs emergency surgery on a celebrity. Regan reluctantly agrees to allow Esme an opportunity to work with Catherine on a student film. A patient arrives at the Cube and displays signs of being unbalanced.

John Legend, Andy Roddick, Donald Faison, Chrissy Teigen, Brooklyn Decker and Sarah Chalke are on the show this week.

Holmes and Watson come into contact with MI-6, the British intelligence agency, when a standard murder investigation turns out to have international and political implications. Meanwhile, in the wake of a crisis, Watson reevaluates her relationships with Sherlock and his brother, Mycroft.

While investigating the death of a man trampled by his horse, Flynn and Vega suspect homicide.

Marc is riding high, his career is taking off and his relationship with Jen seems to be going well. However, Marc turns out to be his own worst enemy as he sabotages a TV guest spot and ruins his relationship at the same time.

Patton Oswalt and Scott battle it out to try and secure the same acting role whilst a turtle expert suffers an emotional breakdown.

Katie Couric

Marc Maron, Rodrigo y Gabriela

Ellen Page

Tonight guests are Irish-German actor Michael Fassebender and actress Zoe Saldana.

Also Tonight Show Questions & Danswers; Jimmy counts down top/bottom songs in the country; Tonight Show #hashtags: #MomQuotes; GE Tonight Show Fallonventions: Kid's Inventions.

James Franco, Idina Menzel, a performance by the Broadway cast of "If/Then"

3 celebrity contestants compete to determine who has the funniest take on the day's pop culture.

Seth was joined by Jon Hamm, Larry King and Misty Copeland.

Lisa Kudrow

The popular news quiz, with team captains Paul Merton and Ian Hislop, guest host David Mitchell and guest panellists Susan Calman and Andy Hamilton.

Among the guests on Graham's sofa are double Oscar-nominated actress Brenda Blethyn, starring in hit detective drama Vera; comic actor Stephen Mangan, starring in Postman Pat: The Movie; iconic fashion designer Jean Paul Gaultier; and the musical legend that is Barry Manilow.