When a stamp enthusiast is murdered, Murdoch wonders if the murder is linked to the man's stamp collection or his collection of lovers.

Contestants to be announced.

Gilbert Collins, a university administrator from Princeton, N.J.

Anneke Garcia, an instructional design consultant from Salt Lake City, Utah

Kyle Jones, a music teacher from Aurora, Colo

When a murder weapon from a case close to Athena in the early '90s resurfaces, flashbacks to 1989 show how Athena joined the LAPD and became the police officer she is today.

After a first-round dance to a style they have not yet performed, seven couples compete, with two couples dancing at the same time in the same style in a Dance-Off challenge.

Taylor Swift serves as a Mega Mentor to all of the coaches' teams on the third night of the Knockouts, as the coaches pair their artists to perform individually against a teammate, then select a winner to move on to the Live Playoffs.

As Calvin and Tina near a milestone anniversary, Dave and Gemma decide to help the Butlers have the wedding they missed out on the first time around. Also, Malcolm and Marty prepare an unforgettable performance for their parents' special occasion.

When a showgirl dies, Frankie's investigation leads her to go under cover as a server at a mermaid-themed nightclub.

Bob hires Abishola to take care of Dottie in his home while she recovers. Also, Dottie has a hard time dealing with her limitations and takes it out on Abishola.

Ditch the four walls, head outside, and get your fill of those portable powerhouses known as food trucks. Jeff Mauro gets happy about an angry lobster sandwich from the Happy Lobster Truck in Chicago. Sabin Lomac puts the pedal to the metal for The Bacon Truck's bacon mac and cheese bites in Boston, and nothing is going to slow down Ali Khan as he speeds towards the best food on wheels at LeRoy and Lewis Barbecue in Austin, Texas.

In the first challenge, host Jesse Palmer asks the 10 bakers to introduce themselves with edible place cards and one-bite signature holiday desserts. The main heat is all about holiday wreath cakes, and the competitors must bake and decorate a Danish Kransekake featuring holiday ingredients like chestnuts, graham crackers or toffee. Judges Nancy Fuller, Duff Goldman and Lorraine Pascale have the final say in which baker goes home.

Near Merritt, BC a parcel delivery truck is torn wide open scattering hundreds of packages across The Coq. Facing high winds, high speed traffic and the threat of falling rocks, Reliable Towing must overcome numerous obstacles to clear the wreck. Al has to get physical after a dump truck crashes into a concrete barrier. And Jamie uses a "slick trick" to slide a heavy load off a highway.

Bright's quest for answers about his childhood leads him to a junkyard, where he's bombarded with gunshots. Narrowly escaping, Bright and the NYPD discover multiple bodies on the scene, with victims spanning decades. Gil, Dani, Frank and Bright must investigate this serial killer who Bright suspects has something to do with "The Surgeon." Meanwhile, Ainsley's exclusive interview with Martin takes an unexpected turn, forcing her to team up with Bright.

Dr. Albert Lin uncovers a lost city that predates Stonehenge by 4,000 years; the "Manhattan" of its day, Blick Mead could hold the secret to why one of the world's most famous monuments was built.

It's tattoo mania in New York as Mike and Danielle pick through an artist's high-end collection of flash art. Then Mike uncovers a 100-year-old Papier-Mâché Uncle Sam. In Ohio, Frank and Robbie bumble through four stories of junk in search of hidden treasures.

Billy Staton and his fiancé Leticia Castro vanish without a trace. Have they left town and eloped? The discovery of Billy's burnt out car and a shock confession, reveal a web of lies that only a secret recording can untangle

Mark and Emily go head to head in court for the first time, and things get awkward when Mark must cross-examine Lola's mother, Roxy, when she's called as a character witness in the case for a homeless youth charged with felony vandalism.

Eager to save some late Victorian architecture, the Dawgs accept an invitation to salvage a hundred-year-old Moose Lodge in Jamestown, New York. The 10-hour drive proves worth it as they collect unique stair spindles and beautiful stained glass.

On June 6, 1992, Suzie Streeter and Stacy McCall attend parties celebrating their high school graduation; by morning, the teenagers have gone missing, along with Suzie's mother, Sherrill Levitt; the case leads police on a nationwide search.

While performing his first solo surgery, Dr. Shaun Murphy alienates a nurse, which puts his residency in jeopardy; Dr. Neil Melendez disagrees with Dr. Audrey Lim on a risky surgery; Dr. Claire Brown spirals into self-destructive behaviors.

Sydney, Elijah and Briana take on a pill mill owner responsible for creating an addiction epidemic in a small Tennessee town. Jake helps George move forward in his post-prison life.

Bull faces the seemingly impossible task of defending his teenaged client, Andrew Zbyszek, who already confessed to accidentally killing the doctor he blames for his mother's death.

Discover why the Bronx burned in the 1970s and meet those who chose to resist, remain and rebuild.

Hazen Audel retraces the journey of 4 U.S. airmen who crashed in the remote Outback during WWII.

Eddie Jackson cherishes homemade gifts that come from the heart, so he asks five of the top cookie makers to create cookies that look like handcrafted gifts. Judges Matt Adlard, Ree Drummond and Brandi Milloy pick their favorite homespun creation. Then the competitors have to create complex cookie garlands worthy of stringing up in front of the fireplace, and they fire up their cookies with smoky ingredients like paprika, smoked almonds, Gouda and scotch. When the smoke clears, one cookie maker is left standing with the $10,000 prize.

Hilarity and hijinks ensue when AJ Styles and The O.C.'s Luke Gallows and Karl Anderson take the scenic route to Raw. Plus, watch as Mojo Rawley and Dana Brooke compete to see who has the better "game."

Drug smugglers cut holes in President Trump's border wall, Elizabeth Warren takes heat from her 2020 Democratic rivals, and Colson Whitehead discusses The Nickel Boys.