Athletes who completed the mid-South region preliminary round take on a more challenging course in their bid to qualify for the national finals in Las Vegas.

Emily and her eight remaining suitors visit Dubrovnik, Croatia, where one gets to enjoy a picturesque dinner with her in an ancient fort. On the group date, the guys attend a screening of the Disney/Pixar film "Brave". Later, the men compete for Emily's attention in their own Highland games, and in the rose ceremony, Emily makes some surprising moves.

Amy and Ricky return home with big news. Meanwhile, Grace continues to shut out Adrian; Leo discusses the fire with Dylan's parents; and Anne learns how serious things are between Ashley and Toby.

The girls travel to New York City, where Tamera struggles to present a more grown-up image of herself to fashion-magazine editors. Meanwhile, Tia sets out to prove to her sister that moms know how to have fun.

Rigby must prove he can complete a task or risk losing his job.

Auditions are held.

Cruising the back roads of South Carolina, the guys stumble on an out-of-the-way property where an atomic-era spaceship clock catches Mike's eye. Crisscrossing the country for the past 30 years, long haul truckers Hollis and Linda have amassed an incredible collection and it's all stored behind their full-service laundromat. Junk Man Bob has a huge collection and is ready to sell but does his stuff live up to his name?

Dosed with a smart drug, Carter's genius gets out of control as he starts to re-write the laws of physics, putting his friends and the whole town in danger.

Chef Ramsay once again pits the women against the men, but this culinary challenge tackles cuisine never before.

Gene attempts to distract Shannon from the adoption process by suggesting that they take a belated honeymoon.

Shannon has a secret agenda to change Gene's mind on adoption while they vacation in Africa.

The girls attend the lavish Kappa Boule Ball where Raquel meets an intriguing guy, but also learns a family secret that shatters her foundation. April secretly dates a stripper. Keisha is surprised to run into Malcolm at the Ball and is shocked to learn why he is there.

The remaining sixteen contestants visit military base Camp Pendleton, CA where they will work in teams to prepare a healthy and balanced meal for 200 servicemen and women.

Michelle's rocky start with her new mother-in-law finally seems to smooth out, until an unexpected occurrence turns everything on end. Michelle quickly finds herself back at odds with Fanny, but at the same time wanting to empathize with her. Inspired by Fanny's students, Michelle has an idea to help Fanny face the reality of the situation.

Tensions rise at the Lick as Ron's old friend Johnny pushes a wedge between the Lizard Lick crew. First, when the boys go to repossess a sedan from a crazed karate expert, Bobby takes a hit that could put him down for good. Then, a repo at a chicken farm leaves Ron with egg on his face. And finally, the repo crew pushes Ron to make a drastic decision that will change the face of Lizard Lick Towing.

The shape-shifter continues his murders while Scott tries to get Allison to retrieve a rare book in Gerard's collection.

The tension is sky-high for the Pawn Stars, when a book signed by Charles Lindbergh flies into focus. Chronicling his historic flight, can they stay alert during a grueling negotiation, or nod off and lose control? Then, a medal commemorating the sinking of the Lusitania torpedoes into the shop. Issued by Germany to celebrate their infamous attack, do they navigate dangerous waters for this rare piece, or let it sink without a trace? And later, a guy tries to throw Rick off balance when he brings in a rare 17th century Dutch money scale. Will the deal tip in Rick's favor?

Play detective with the Pawn Stars when they try to discover the origins of a mysterious rifle brought into the shop. Will Rick pull the trigger on the deal of his life, or will the negotiation blow up in his face? Then, Corey and the Old Man are presented with a signed print by Leroy Neiman. Considered one of America's greatest living artists, do the guys draw up an offer for this highly collectable piece of art, or get painted into a corner? And later, a collection of old sports pins needle their way into the shop. Can they nail down a deal or will this one fall apart?

Parmy Olson

Martin Short, Audrey Plaza, The Spring Standards

Paul Krugman

Actor Denis Leary; actress Olivia Wilde; The Pierces perform.

Steve Carell, Cory Booker, Glen Hansard

Kelly MacDonald, Kevin McKidd

The Mystery Box winner is eager to win an immunity pin. To win they must beat former Billy Kwong Chef, Hamish Ingham from Bar H. With a choice of tea or coffee as the core ingredient.

Tension remains high in the Rafter house as Julie and Dave struggle to forgive each other. Ted is caught in the middle and is feeling the strain. He's sick of having to hide the real reason behind their squabbles from Ben and implores them to move on before they have to explain everything to their son. But it's clear that letting go could be a long way off for our couple as they accept Ben's invitation to a weekend in the country. Meanwhile, Carbo is also having trouble letting go of something... his beloved Charger. Having deemed it unsuitable for transporting babies. Retta decides they have to sell it. However, Carbo is outraged and is prepared to go to extreme lengths to protect his other 'baby'.

In the face of a hospital-wide outbreak, Luc is determined to make up for missing a diagnosis the day before. Elsewhere, Dan's father is admitted as a patient.

Mia finds herself being forced to use her professional knowledge to cover up what Riley has done. She feels uncomfortable though with receiving help from Eddie, who she still cannot fully trust. Ben's confusion about his attraction to Mia increases after he finds out more about her past.