Slotter makes an attempt at hanging two Blackfoot as scapegoats for the massacre, but when the camp turns against her - Kat, ends up on the noose.
Liz asks Red for information about deadly wildlife poachers after a mutilated corpse washes ashore. Ressler forms a dangerous habit.
Computer graphics, visual analogies and a recurring cast of expert scientists combine to reveal new aspects of the world you think you know, from canyons of gravity that warp space and time to rain triggered by cosmic rays.
When a killer begins targeting the first born of Gotham's elite, Bullock is forced to confront traumatic memories from a nearly identical case he worked in the past. Gordon is confronted by past decisions.
Callen and Sam make their way to Mexico to locate the only employee who escaped a professional hit at the Department of Defense. Back in America, the rest of the team work to discover the motive behind the shooting.
The knockout round begins with top team members selecting their own songs to perform individually. Taylor Swift serves as an adviser.
Cormac McCarthy seeks Tyson's help in finding an ending for his latest novel.
When Bullock sends a drone to do the job Stan and his colleagues are supposed to do, Stan is determined to prove that humans are better than robots. Meanwhile, Francine and the rest of the family participate in a slow motion race against one another in the living room.
Team captains Sean Lock and Jon Richardson are joined by The Great British Bake Off's Paul Hollywood, TV presenter Gabby Logan and comedians Joe Wilkinson and Aisling Bea to discuss and dissect the events that set the British public's chins wagging over the past week.
A reality show producer approaches Max and Caroline about shooting an episode of 'Keeping Up With The Kardashians' at their cupcake window.
After the unexpected outcome of the orchestral competition, things start to change a little for Yoojin and his star musicians.
Debbie and Nathan fear that their parents are reuniting when Carol and Tom feel hesitant about formally ending their marriage.
Election day! Ki searches for a clever solution that will gain voters in the 11th hour, while Ted desperately tries fix a past mistake that could cost Ki the election. Meanwhile, Jenny and Brian face off against Napalm Energy Drink High School in the biggest FPS match of their lives! But little do they know The Law has just received a major upgrade.Jenny is told that she is going to play for the Panthers in Paris, but she tells Brian that she's making dinner for them to tell him the news, but the other FPS team members think Jenny wants to have sex with Brian.
After being reprimanded by Dottie, the guys commit to one last prank before going straight. The situation quickly escalates out of control but no one knows why.
Kirby and his friends hope to attend a fright-night film festival, but their plans are threatened when they get quarantined at school. Meanwhile, Dawn and Belinda get invited to a Halloween party at the house of a popular kid at school.
A NASA Mercury 7 signed photo, circa 1960; an 1862 Abraham Lincoln-signed document; Tiffany & Co. gold necklace circa 1875.
An alcohol-fueled mistake threatens the strongest couple in the house; Anthony goes after Layton's crush; John makes a move on Christina; the house reels after a Matchup Ceremony.
The couples perform one unlearned dance and a team dance to Halloween themes and songs.