Caught up in a love triangle, young chef Heather Mallory vanishes; detectives and Heather's parents search for the truth in an investigation involving wiretaps, confidential informants and a dramatic resolution deep in the forest.

The chefs are excited to find out that a small plates theme is in effect for their competition. The judges - including the goddess of high standards, judge Martha Stewart -- are expecting modern, creative dining experiences in every round. The first basket features a surprise from one of the judge's restaurants. The entrée basket contains a German sandwich that sounds unappealing to the uninitiated. And the dessert round basket has the final pair of chefs scrambling to make small plates with big flavor that include a sensational citrus.

Josh goes down under to search along Australia's infamous Shipwreck Coast for the missing Mahogany Ship.

Todd takes on too much as the family heads to Florida to run their first Miss Florida USA pageant. And when Faye makes a rash purchase, Todd insists on calling her out.

"The Qualifiers" round continues with judges Jennifer Lopez, Derek Hough, NE-YO and host/mentor Jenna Dewan. In round five of "The Qualifiers," the world's most elite dance acts from all ages and dance genres enter the "World of Dance" arena to face off in the challenge of a lifetime. The acts have one chance to showcase their artistry, precision and athleticism in order to move forward in the competition and ultimately win a grand prize of $1 million.

The trial of Darlie Routier heats up. Facing one of Texas' top defense lawyers, the prosecution argues that Darlie's actions and demeanor are not that of a grieving mother but of a person capable of murdering her own children. The defense strikes back by questioning the state's theory of motive and the characterization of Darlie. However, when the prosecution presents a video of Darlie having a party at her children's gravesite in the now infamous "silly string video," it seems her fate is sealed. Author Barbara Davis, who was at the original trial, gives a firsthand account.

With Jurzie's birthday around the corner, Antonio and Terricka attempt to surprise her with a new pet, but houseguests arriving and Jynx suddenly climbing out of his crib create mayhem.

Guests include Shaquille O'Neal, Jenna Dewan and musical guest Keith Urban.

Hugh Grant; Kyrie Irving; Political commentator Margaret Hoover.

Guest Nick Kroll, Stacey Abrams and Katie Stevens. Jennie Vee & Joe Russo sit-in with the 8G Band.

With six teams left in the competition it's time for House Rules to renovate their backyards.

George pays a surprise visit to the MasterChef contestant house with a special guest. Together, they reveal the challenge.

When Booker wants to reveal his powers to increase his popularity at school, Raven warns him to keep his psychic powers a secret.

Davina McCall is joined by Joe and Melissa, father and daughter from Bury, and friends Billy and Harvey from London. Will they manage to leave with the cash?

Offred faces a grueling challenge while Serena Joy and the Commander deal with the fallout of their actions.

In this episode of Deadly Dinosaurs, Steve Backshall is on a mission to find the most dangerous dinosaur of all time. Using the latest technology and epic experiments, he does whatever it takes to crown his king of the killers.

His search sees him chomp through a car like a T-Rex, wield an axe like an Allosaurus, before hitching a ride in the biggest tank in Britain to showcase the incredible size and power of Spinosaurus.

But which of these immense predators will come out on top?