Following the murder of a Marine, Tony and Ziva join Ziva's longtime friend and mentor in Columbia in a search for a missing Marine Lieutenant and Navy Chaplain. Meanwhile, Jimmy Palmer decides who will be his best man.

Results are in and Maria Menounos & Derek Hough, Donald Driver & Peta Murgatroyd, Gavin DeGraw & Karina Smirnoff, Roshon Fegan & Chelsie Hightower, Sherri Shepherd & Val Chmerkovskiy, Melissa Gilbert & Maksim Chmerkovskiy, William Levy & Cheryl Burke, Katherine Jenkins & Mark Ballas, Gladys Knight & Tristian MacManus, and Jaleel White & Kym Johnson are facing possible elimination. Melissa suffered a mild concussion, but will be back next week. Musical Guests: KISS and Gotan Project.

In a very special "mockumentary" episode, Nancy Grace examines the "real story" of Hope's mom, serial killer Lucy Carlisle. Grace interviews each member of the Chance family, all of whom relay personal accounts of exactly what happened when Jimmy met Lucy back in 2008. At the end of the program, the Chances are shocked to find out developing details about Lucy.

After Mike and Ed invite Kyle to join the team for The Outdoor Man's annual sports competition, they have second thoughts, since his non-athletic ways might earn their team yet another loss. Meanwhile Vanessa tries to explain herself when she is overheard saying she didn't want to attend Eve's soccer game and Mandy's school play.

America will vote for three contestants from each team to be safe. Then the coaches have to decide from which two members of their team they will be parting.

Michelle Obama discusses health and fitness with the six remaining players and meets with their families. She also joins the gang for a workout at the White House. Elsewhere, Bob counsels a player who turns to food for comfort; and Dolvett leads a last-chance workout in front of the Ulysses S. Grant Memorial.

Derwin suffers consequences; Melanie's surrogate; Derwin's drama as a professional athlete.

Travis wants to take Jules and Grayson's wedding pictures, but Jules, who wants everything to be perfect for her second wedding, isn't so sure; meanwhile Bobby wants to get serious with Angie, but does she feel the same way?

A highly lucrative sale opportunity is presented to Les and Seth, requiring their immediate and full attention. When Ashley's selfish behavior threatens the deal, Seth loses it.

A slashed crab quota has captains reeling before the boats hit the water. With the fleet set to fight over half the catch, each skipper is forced to decide: roll the dice on the depleted Red grounds or risk it all to hunt for the elusive Blue crab.

When a former Marine is suspected of creating a chemical bomb, the NCIS: LA team joins the FBI's domestic terrorist task force including Operational Psychologist Nate Getz.

Much to Blaine's chagrin, his big-shot Hollywood actor brother, Cooper, comes to visit.

Catherine's plot to drive apart Andrew and Bridget falters; Machado learns who wanted Siobhan dead; and Siobhan's plan to help Henry hits a snag.

A nervous Jess invites Russell to spend the weekend at the loft, and her fears are amplified when he gets along better with the guys than she hoped. Meanwhile, Winston begins work at a sports radio station, but quickly finds out his boss is more of a shock jock, and Nick tries to make an invention from his "Idea Notebook" into a reality.

Murdoch investigates the disappearance of Lucille Messing, a local librarian, who Murdoch discovers had a much more seductive personal life than she portrayed. Through the course of the investigation, Murdoch discovers that Anna has returned to Toronto and is working at the library under an alias. However, as the investigation continues, the Black Hand may have learned of her return as well. Meanwhile, Murdoch is also reunited with Dr. Ogden when she is arrested for her controversial teachings.

After a state trooper is murderd, Raylan goes all out trying to find the killer, leading to a final bloody showdown.

When a cause of death seems all too familiar, Megan is forced to come face to face with a serial killer she helped put away.

Carrie and Al must get inside the mind of a deranged conspiracy theorist before he sets off a series of bombs.

Shooters reach the individual stage of the competition and immediately face an incredible challenge with the Accuracy International AWM Sniper Rifle-taking the longest shot in Top Shot history. Top Shot veterans Kelly Bachand and George Reinas return and get in on the action.

Elon Musk

Phil & Willie Robertson, M. Ward

Richard Hersh

Sean Hayes, Jim Gaffigan, Shooter Jennings

Josh Hutcherson, Rachel Maddow, Eric Turner featuring Lupe Fiasco and Tinie Tempah

Guy Pearce, Jessica St. Clair

Shelby is desperate for alcohol having spilt her secret stash of vodka on the morning of her art exam. She manages to make it to the exam, but without being able to get her fix she finds it hard to concentrate. Shelby ends up suggesting to Madi that they go to the pub to celebrate her birthday. Alan Dixon is atthe school to conduct a review for the Local Education Authority. Jez ends up realising that he needs to prioritise his relationship with his children. Janeece ends up taking some drastic measures when she finds it hard financially. Finn manages to fall further under the Murray gang's influence.

Axl learns that the path to being a benevolent God, one who commands respect, is strewn with idiots and half-wits.

Lord Sugar informs the teams that this week they have to set up second-hand shops in London's fashionable East End. The teams have to source second-hand stock from auctions, junk shops and car boot sales, and resell at a profit during a one-day-sale from their respective shops. One of the candidates from the loosing team is fired by Lord Sugar at the end of the show.

Disaster threatens as the ninja must fight to defeat the all consuming Great Devourer in a desperate attempt to save Ninjago.