Athena and the 118 respond to bizarre emergency calls on Halloween, including a flock of crows terrorizing a field trip, an office employee having a close encounter with an eight-limbed creature and a ghost-like girl wandering a neighborhood. Meanwhile, Maddie remains convinced that she is doing the right thing in taking a 9-1-1 call into her own hands.

Dave and Tina discover a common bond when they attend a concert together. Also, Gemma seeks the Butlers' help when an unwelcome visitor takes up residence in the Johnson home.

When Spencer tries to talk to Layla about what is going on, things don't work out quite as he hoped. It's Billy, Corey and Grace's 25th high school reunion which brings up a lot of memories and unfinished business. Laura becomes upset when she discovers Jordan has found a way around being grounded. Meanwhile, Asher turns to Olivia for support when someone from his past wants to see him.

Rob makes costly mistakes as Cassie immerses herself in the art of being Lexie.

The couples perform spooky dances, including individual and team dances.

The Battle Rounds conclude and the Knockout Rounds begin. The artists are paired against a teammate once more, but this time they perform individually. Taylor Swift serves as a Mega Mentor to all of the coaches and their teams. Each coach has one steal in the Knockouts.

An adventure in the woods turns scary when Murdoch, Ogden, Higgins and Ruth are stalked by a beast that killed two men.

Bob and Abishola finally go on a proper date, which is interrupted by Dottie's medical emergency.

Racers arrive in Idaho for the season's fourth race, and everyone is focused on chasing down Lizzy. Ryan Martin tries a tricky new setup that could make or break his chances. As OKC, Texas, and NOLA band together, a new faction of misfits forms.

Big changes come to The Deuce as Gene sees opportunity in the city's public health crisis. Vincent looks to get out from under the mob's thumb and makes peace with Abby, who decides to pursue a new future. Candy makes a critical choice in her relationship with Hank. Harvey speaks his mind about Candy's film. Alston recognizes the truth of Midtown's redevelopment. Melissa makes a commitment, while Loretta takes on a big responsibility.

When a toy store owner is the target of a harassment campaign, the gang go undercover at a telephone exchange to nab the culprit.

Jefferson faces new challenges due to the shocking state of Freeland. Lynn finds herself under intense pressure as she desperately tries to find a solution to the continuing crisis in Freeland. Meanwhile, Anissa continues her work at the clinic. Lastly, Jennifer finds her confidence shaken.

Lola contends with a fame-hungry defendant, personal assistant Olivia McLeland, and a circus-like courtroom while presiding over a celebrity's murder trial that forces her to find peace at Sherri's home after she's chased by paparazzi.

When Bright uncovers a photo of himself and Martin from when he was a kid, he is forced to focus on the repressed memories from his childhood psyche. Meanwhile, he finds himself bonding with a young boy connected to the NYPD's latest homicide. Also, Jessica and Malcolm finally agree on one thing - they must put a stop to Ainsley's idea to interview "The Surgeon".

A woman who has a reputation for aggressive behavior is on trial for her husband's murder, but she claims to have no memory of it due to an alcohol-induced blackout.

Sydney and Elijah try two separate cases for ex-college football star Marcus Wright, who is dying. Della is presented with a lifetime achievement award from the LGBTQ community.

President Trump gloats over the death of ISIS's leader, Beto O'Rourke discusses his 2020 White House bid, and actor Michelle Yeoh chats about her role in "Last Christmas".

Actor Edward Norton.

Liza Treyger, Kevin Nealon and Dean Delray discuss Ben Affleck's online dating profile and a cringeworthy update of the alphabet song, and Spade recalls his fraternity days.

The "Robot Chicken" crew reveals what really happened to Bambi's mother; an Animorph revives the Red Panda population; Brainy Smurf gets diagnosed with CTE; Bitch Pudding goes up against Norman Bates to see who is more psycho.

Actress Emma Thompson; actor Joel Kinnaman; Liam Gallagher performs.

Stephen welcomes actress Queen Latifah, Radhika Jones, editor-in-chief of Vanity Fair, with musical guest Wu-Tang Clan.

Todd organizes a surprise wedding for Pickles and Mr. Peanutbutter, but the party quickly goes off the rails when Mr. Peanutbutter makes a confession.

Interactions with two women have Sandy contemplating his changing libido. Norman tries to reconcile with both Phoebe and Madelyn.

The Squatch Squad emerges from hiding to protect their forest home; the Wuzzles meet the Fly and things get a little bit crazy; the writers reveal Bill & Ted's last and greatest adventure.

Imagining his legacy as narrated by RZA, Wesley plans a homecoming dance while Eli campaigns for the crown and Angelica tries to set up Josh.

As a sinister plot targeting the school unfolds, Hayley embraces her new lifestyle, annoying Leo, while Brooke argues with Alex about her brother.

James welcomes actor John Lithgow, Louis Tomlinson talks and performs, and actress Rebecca Ferguson.

Noel Fielding and Sandi Toksvig host the final of the culinary competition. As family and friends gather on the lawn outside, the last three bakers enter the tent to prepare a chocolate cake as their signature bake. For the technical challenge, they must master that most delicate of dishes, the souffle, and finally for their showstopper, they must create an edible illusion using only cake, sweet bread and biscuits.

It's Halloween and Cameron is haunted by his own ghosts. Jac receives a bombshell from Stacey, and will Dominic overstep the mark when it comes to Lofty's baby?

Amar and Jo head to the supermarket where she used to work - where they meet Chloe, Jo's former colleague. However, things soon take a troubling turn.