The race continues in Santiago, Chile, where teams take a bizarre salt bath. Meanwhile, one pair's communication blunder at a bus stop could prove to be costly.

The opener of the 24th annual "Treehouse of Horror" is from Guillermo del Toro and features monsters and classic characters from horror films throughout history.

In the first of three spine-tingling stories, Homer rides around Springfield wreaking havoc in a rhyming take on a popular children's tale.

In "Dead and Shoulders", Bart is beheaded during a kite accident, his head is attached to Lisa's body and they must live together as one.

The final terrifying tale, "Freaks no Geeks", features Mr. Burns' traveling circus, The Burnsum and Bailey Circus, which has stopped in Springfieldland in the 1930s. Trapeze artist Marge and Strong Man Homer are performers and things go awry when circus freak Moe starts to make advances towards Marge.

As she searches for Henry with the others, Emma meets with Pan, who gives her a map but warns that it will only lead her to her son if she admits who she is truly is. Meanwhile, in the fairy tale world, Snow White is willing to give up her kingdom and her people when the Evil Queen offers to spare her life if she will go into exile.

Tina, Gene and Louise are filled with the Halloween spirit and head out with their friends for a candy-fueled adventure.

However, things take a turn for the worse, when the kids build their own fort and find themselves held hostage by Louise's wacko friend, Millie.

Frank grapples with his sanity as the realities of his actions start to take their toll. Meanwhile, the DPD catches a major break in the McCann case.

After Khloe's numerous attempts to conceive a child, Kim discusses the possibility of adoption with her. Kris thinks that Scott sold a scooter that she gave to him as a gift. Bruce trains Khloe's dog without her knowledge.

Jon must do a reality check on a bar whose oblivious owner, ill-conceived death metal theme, and filthy bathrooms are driving away the college-age crowd.

Francine's dissatisfaction in the bedroom causes a haunting; Haley introduces her new guy to the family.

Peter discovers that he has a vestigial twin, whom he names Chip, growing out of his neck. It's not long before Peter resents the fact that everyone seems to love Chip more than him, so he decides to amputate his twin.
However, when Peter gets into trouble, he realizes he needs Chip more than ever.

Alicia and Cary sue the NSA on behalf of search engine Chumhum, unaware that Lockhart/Gardner's connection to a former client has resulted in the spy agency monitoring the firm's communications. Meanwhile, Alicia's mom takes steps to support her daughter, and Eli works to secure Diane's Supreme Court nomination.

Jane defends a troubled socialite and through a series of unfortunate legal turns puts the future of the firm in jeopardy. Meanwhile, Grayson represents a man who was thrown off of a commercial flight for claiming to be a vampire; and Owen shares some tough news with Stacy.

Nucky heads to Philadelphia to deal with the fallout from Willie's liquor fiasco. Eddie Kessler is detained by Agent Knox, who uses physical and psychological tactics to elicit information about Nucky's organization. A desperate Gillian turns to an unexpected source to score a fix, and is rebuffed in her attempt to reunite with Tommy. In Cicero, Van Alden is recruited by the Capones to pay an election-day visit to local factory workers opposed to the Capones' candidate of choice.

Emily's next target takes her into unchartered, sacred terrain, now that the former Grayson Global executive is a reformed clergyman. Victoria makes a bold move with Patrick, and Margaux presents Daniel with an intriguing proposal.

Saul attempts to track down those responsible for the Langley attack and recruits an unlikely expert to follow the money trail. Meanwhile, Quinn takes matters into his own hands; Carrie learns who is really on her side; and the Brody family turn to therapy to mend their broken household.

This episode explores the food and natural beauty of Copenhagen, the economic and cultural center of Denmark. Home to famed chef Rene Redzepi and his brainchild Noma - regarded by critics as one of the world's best restaurants - Parts Unknown delves into the city's cuisine and the new Nordic creativity that infuses Redzepi's work at Noma.

While the DPD gets close to solving McCann's murder, Frank is forced to make a critical decision. Damon makes his boldest move yet.

Still reeling from the discovery of who Jack really is, Sara decides to recommit herself to her marriage. Meanwhile, Jack comes face to face with Sara's husband, Drew, in the murder investigation that has shaken the Karsten family to its core.

On the heels of Masters' proposal that they participate in the sexual response study, Johnson considers the best course of action to keep her job - only to find she no longer has one. The study has been forced out of the hospital and Masters believes Johnson is to blame. As Johnson fights to save her job and struggles to care for her kids, Masters moves his study to a brothel. But Masters soon discovers that the chaos of the cathouse is unmanageable without Johnson's help.

Joanna Beauchamp and her adult daughters Ingrid and Freya are witches? a secret she has kept hidden from them for the last thirty years. All that may come to an abrupt end when Joanna's sister Wendy returns to East Haven with a dire warning that a powerful and malevolent force bent on revenge is coming for Joanna, and it will take the combined magic of all the Beauchamp women to defeat it.

Jane discovers an important clue to Red John's methods as the team encounters four of the suspects, and the CBI investigates the case of a software engineer killed by a drone strike.

Kenny visits Guy Young to discuss a career change; Kenny tries to convince Stevie to rejoin the Powers team.

Stuart looks to win over Jessica's friends by commandeering a limo Wade hired to impress his estranged wife Marion.

Tiff Needell is in Los Angeles to look into the new trend of restomodding. Jason takes on Brazilian ace-race Bruno Senna in the new Aston Martin Vanquish.

Oenophiles v Science Editors: Quiz show in which connections must be made between things which appear utterly random. A trio of wine lovers take on three science editors.

Louisa is feeling fed up as she can't sleep because Martin can't sleep. Mrs Tishell and Jennifer continue to be at odds at the chemist when Louisa shows up and asks for something to help with sleep. Malcolm Rayner, the local hypochondriac, has a splinter and after it is removed he realises the consultation is nearly over. He then tells Martin that he has a cold who advises him to take lemon and hot water and come back if it persists.

Guest Host Peter Andre. Jason Gardiner and Ana Matronic (Scissor Sisters) on Phill's Team, Charles Cave (White Lies) and Tony Law on Noel's team.

Finn meets the Box Prince-a cat with a box on its back-and learns that the Box Kingdom has been taken over by an imposter. Finn must therefore help the real Box Prince reclaim the throne.

Detective Murdoch investigates the sudden death of bicycle racer Joe Fenton. Murdoch was himself a participant in the race trying out his newfangled gear shifting device but Fenton was the favorite having won several recent races. Fenton's manager, Chippy Blackburn, was seen giving him a potion and they suspect he may be may be fixing races. Dr. Grace however is having considerable difficulty finding a cause of death and with Dr. Ogden's assistance performs her first brain bisection.