Jack and Dan investigate a spurious inspection report at a corrupt oil company only to discover that they might have actually stumbled onto a deadly criminal conspiracy with Liz’s boyfriend Kyle stuck right in the middle.
he long-retired Batwoman sees an opportunity for revenge against the villain who humiliated her: the Riddler.
When a badly decomposed body found is an abandoned car on a rooftop, Mac and his team must go up against a killer who is using the parents of his victims to manipulate crime scenes.
Aggregor escapes to a magical dimension. Gwen asks for Charmcaster's help to pursue him. The team learns about Charmcaster's past and why she's willing to help them now.
Ventura treks into the Nevada desert to monitor the activity of Area 51, the most secretive military complex in the country and believed by many in the UFO community to be reverse engineering alien technology. He also looks into why the homes of two Area 51 watchdogs were recently raided by the Joint Terrorism Task Force.
Danny tries to find the source of a deadly narcotic after three teenagers die from an overdose.
Twilight receives two tickets from Princess Celestia to the Grand Galloping Gala. All five of her best friends want to go, but she can only choose one.
When Allison begins having flashes to a specific time in the future, her sense of dread grows as she feels more and more powerless to stop a catastrophic event from occurring.
Blueberry starts reading Patty Persimmon mystery novels and forgets about meetings or appointments with her friends.
Ben, Chi-Lan and Austin travel to Alton, Illinois to investigate the McPike Mansion, a well known haunted house where some local ghost hunters caught what appears to be an apparition on their cameras. Meanwhile, Jael, Bill and Larry go to Fremont, California to attempt to debunk an alleged UFO.
Orange Blossom fears that the Gumper Lump is real and when there's a power cut in Lemon's salon, the girls act silly and thinks it does exist .
Leonard keeps an affair a secret from Sheldon, Howard and Raj.
The case of a murder and missing person on an intensely secure wealthy family's compound perplexes Jane and the CBI team.
Dean Pelton's army surplus party food sparks an outbreak of zombie-ism at the Greendale Halloween party.
Could Madagascar be the home to the beast known as the Fangalabolo, a bat-like creature with a monkey face? It's certainly possible since 90% of the species found on Madagascar are not found anywhere else in the world. Recent sightings of the Fangalabolo inspire Josh Gates to investigate. Zombie-like ghosts called Taotaomona are said to be roaming the island of Guam. Once revered by the Chamorus tribe of Gaum, these apparitions are thought to be the spirits of their ancestors. Recent reports, however, imply that the Taotaomona are becoming aggressive and attacking people.
Kevin convinces everyone to come to the suburbs for Halloween. Meanwhile, Pete has given Ruxin the privilege of selecting his opponent's team for their upcoming match. Taco feels responsible for events relating to a petting-zoo monkey.
Stefan and Damon decide on a new plan to deal with Katherine at the Lockwood’s masquerade ball. Katherine calls on an old friend, Lucy, to attend the ball with her. Bonnie, Jeremy and Alaric all do what they can to help Stefan and Damon, but Katherine has a surprise planned that none of them could foresee. Things take an ugly turn when Matt and Tyler start doing shots with their friends.
Todd holds a Halloween party at the boarding house where he is now forced to live by the company because of cutbacks, which is part of his plan to get close to Asha.