Naomi's friends worry that she is rushing to get married, so Naomi and P.J. decide to throw a small party so everyone can get to know him. Austin returns to Los Angeles and offers to be Adrianna's new manager, suggesting she give country music a try. Caleb is concerned Ivy might not be emotionally stable, while Annie finally admits to Caleb that she is falling for him. Meanwhile, Silver feels conflicted about her feelings for Navid who is back in town.

Results time and for Maria Menounos & Derek Hough, Donald Driver & Peta Murgatroyd, Roshon Fegan & Chelsie Hightower, Melissa Gilbert & Maksim Chmerkovskiy, William Levy & Cheryl Burke, Katherine Jenkins & Mark Ballas, Gladys Knight & Tristian MacManus, and Jaleel White & Kym Johnson wait to see who is going to go to the Dance Duel and who is safe. Musical Guests: Boyz2Men and Natasha Bedingfield.

The vocalists face elimination in a results episode.

The stakes are higher than ever when all the eliminated contestants return to the ranch to compete in a fateful, four-part challenge. The challenge winner will secure a coveted spot as a finalist, and the chance to compete for the $250,000 grand prize, along with the other two finalists revealed in last week's episode. It's a fight to the finish with each player fiercely determined to get back in the game in a competition that will put their speed, knowledge and endurance to the ultimate test. In the end, the third finalist of season 13 will be revealed.

Tasha and Pookie explore their friendship; Janay goes out of town; Melanie and Derwin stay busy.

Jules and Grayson can't see eye to eye when it comes to joining their finances, but they're both going to have to make some sacrifices if they actually want to get married - and that is not going to be easy. Meanwhile, Laurie's Krazy Kakes business is doing surprisingly well, and Travis convinces her to make some grown up decisions of her own.

Les tries to catch competitors poaching customers on his property; a man finds out that his diamond-encrusted watch is worthless.

As the fleet grinds through injuries and mental mistakes, the Bering Sea exposes soft spots and weak links in each crew. While the skippers wonder which deckhands have the right stuff, the Time Bandit says goodbye to a crewmate who never made it back.

The glee club pays homage to a true icon when they cover Whitney Houston's greatest hits. Meanwhile, Emma and Will are one step closer to their dream wedding.

Jess fears she and Russell don't share the fiery passion he exhibits with his ex-wife Ouli. Meanwhile, Cece is not yet willing to admit her true feelings for Schmidt, so she encourages him to go on a date with one of her Russian model roommates. Then, a down-in-the-dumps Nick channels all of his energy into a new vegetable garden.

Murdoch teams up with Alexander Graham Bell when a ruthless inventor is killed by a rival.

Pete and Violet enter marriage counseling to help patch up their relationship; Amelia shuts down emotionally and avoids her peers upon hearing some devastating news; Addison adjusts to the new man in her life, and Charlotte and Cooper struggle with Mason when he refuses to speak to them. Meanwhile, Violet becomes suspicious of the sister of one of her patients.

Armed with a belt fed Browning 1919 machine gun mounted on an authentic World War II half track, shooters blast their way through an explosive individual challenge. After coming up short, two competitors are selected to compete for the right to stay in the game. An unconventional elimination challenge tests marksmanship, strength and memorization. Only one will have what it takes to land the last spot in the final four.

Madeleine Albright

Simon Helberg, Jerry Crowley, Haley Reinhart

Magnus Carlsen

Amy Poehler, Wendy Williams, Trampled by Turtles

Jack Black, Daniel Holzman & Michael Chernow, Beirut

Still reeling after learning of her true parents, Nina meets with Darcy to find out how he's coping. Both hurt and confused by the news, Nina and Darcy downplay their feelings trying to save their pain.

Josh ends up being involved in gang fighting and ends up on the receiving end. Waterloo Road in Rochdale may be closing, but Michael has big plans to keep the school alive in a new way.

Sometimes all it takes is a door getting kicked down, and a large man walking in, for many many truths to be revealed.

The teams are sent to Scotland by Lord Sugar, where they have to make gourmet food and sell it on the streets of Edinburgh. The teams decide on Italian meatballs and Scottish stew. At the end of the show one of the candidates from the loosing team is fired by Lord Sugar.