Dipper and Mabel go trick-or-treating in the summer and encounter a candy-loving monster who threatens to devour them if they don't bring him sweet things to eat.
A woman recants a domestic-abuse claim, but Danny and Jackie continue to investigate the situation. Soon they uncover the woman's secret affair with a powerful politician who's friends with Frank. Meanwhile, Linda returns to the workforce, causing chaos at home.
In order to keep his grip on Chicago, Kane finds he has no choice but to work with Alderman Ross.
The Fringe team revisits the Harvard lab, now under Observer control, to try to find the information they need as the team fights on in their mission to save the world.
Angelina comes to town with bad news; Nick asks Hank for help keeping Monroe safe; Captain Renard receives a visit from a past acquaintance.
The Ross kids become concerned that history is repeating itself after a scary old doorman tells them a building legend about a nanny who did “something terrible” to the kids in her care on Halloween. Meanwhile, Jessie and Tony work together to crash an exclusive Halloween party so Jessie can give her short story to a famous magazine editor.
The CSIs rush to stop serial arsonist Leonard Brooks after he begins using fire against people from his dark past.
Audrey and Nathan encounter a bizarre series of deaths suggesting a serial killer, with a unique “trouble”, is at work in Haven. Meanwhile, a Boston cop tries linking the town's latest body to similar cases.
An unemployed man and his pregnant wife pitch a party-favorite chicken dip; a professional football player's spring-loaded laundry hamper, a technophobe presents his wireless gadget that helps people keep track of their keys or cell phone.
Steve and Amy investigate an old Nevada mining town and a haunted family home in Georgia.
Zak, Nick and Aaron head to the Great Lakes to explore the demonic activity overrunning the Palmer House Hotel. The investigation gets personal when a dark spirit beckons Zak and Aaron, speaking their full names.
Stephen Fry looks at people whose names start with J. With Katy Brand, Sue Perkins, David Mitchell and Alan Davies.
As the race for the Omega Keys grows more desperate, Knock Out harnesses the power of sound, and Starscream the power of hyper-speed.
The third elimination bout is held between Team Carwin and Team Nelson. Also: Dana White treats the fighters to a special outing; Roy uses a bizarre method to pick the next matchup; and one fighter's weight puts his future in jeopardy.
Hastati Squad, the newest batch of freshman cadets at the UNSC's Corbulo Academy of Military Science, pays the price for cadet Thomas Lasky's tactics.
Lorraine ends up venting her anger Julie's way after a pleased Leighton returns to work. Katie lets Kieran know about the latest news involving her love life.
Daniel is so excited to share a book he made with his class at “show and tell,” but he’s finding it very difficult to wait. He finds that doing something, like singing on Trolley, playing during science time and imagining make the waiting much easier!
Daniel and his family are going out to dinner, and Katerina is coming too. Daniel and Katerina have a hard time waiting at the restaurant, but soon learn ways to make the waiting time easier…and even fun!
Fidelma joins the church choir while Martin's confirmation service leads to an epiphany.
While trying to recover the fearsome Lucifractor, Ethan and Benny learn the truth about what - and whom - they're up against. Ethan must face his worst fears - literally - and his only hope is to trust in his connection to his friends, and harness his growing psychic abilities. With the lives of every vampire in town at risk, the Council flees - taking a few unexpected guests along for the ride, and Ethan must ask an old friend, and an even older enemy, to return and lend a hand. The battle is on to take control of Whitechapel, and – fangs or not – nobody is safe.