Phil takes over Halloween decorating duties from Claire. Jay is upset when he wants to dress up as Prince Charming but Gloria buys him a Shrek costume. Mitchell has a problem in court with the stenographer working in a scary costume.
A Saturday health and wellbeing workshop with a neighbouring branch makes Karl much more relaxed than he wants to be, and presents Natalie with a big decision.
A gambling ring is uncovered by the team while they investigate the murder of a gallery owner's son in Koreatown, and Laura reunites with her estranged dad as she prepares to go undercover as a high-stakes poker player.
In a rare move, a very hungry Hunahpu tribe makes a desperate trade for rice. Meanwhile, one castaway on the Coyopa tribe concocts a plan to use a fake idol to try and insure their safety.
Firefighters rush to the aid of a Boeing 777 full of passengers, while a man loses his son in the airport terminal
Workers in the signal tower hear news that an A380 with a faulty engine will be making an emergency landing on one of the runways, while a passenger travelling to Kuwait is found to have a suitcase full of snakes
When a young boy who went missing in San Diego on Halloween suddenly reappears one year later, the BAU must work fast when another trick-or-treater disappears under similar circumstances.
Pa Vreedle reunites with Ma for all-out, total cosmic destruction! Meanwhile, Rhomboid and Octagon tries to impress Ma and Pa Vreedle like Isosceles and Parallelogram Vreedle always does.
Aisling struggles get the attention of Dana White's attention. Tecia's return to the competition angers some fighters. Then, in the sixth fight of the tournament Team Pettis pits #5 ranked Aisling Daly against #12 ranked Angela Magana for a chance to advance to the quarterfinals.
Nyssa believes that Malcolm killed Sara and goes after him to avenger her lover's murder. Oliver discovers that he has no choice but to stop her, despite Laurel insisting that he avenger her sister's death. Meanwhile, Thea returns to Starling City and settles in... until Nyssa discovers that she's Malcolm's daughter.
A scandalous invasion of privacy has everyone in South Park on edge when graphic video from an unknown drone is uploaded on the internet. Cartman and Butters get their hands on a drone and can't resist the urge to take it for a spin around the neighborhood.
The park workers tell scary stories to keep Muscle Man awake while driving to visit his mother on Halloween.
While investigating a series of eerie threats, the TAU team discovers the victim’s house has a creepy history and is believed to be haunted. When the danger turns deadly, they spend Halloween night searching a wild costume party looking for a perpetrator long believed to be dead.
Clarke wants answers from the President. Abby performs emergency surgery. Octavia will do anything to find Lincoln.
Leslie resists meeting with the therapist; Mal and Jake keep a secret from Rose.
Kara, Hunter, Jordi and Dash band together in support of Nurse Jackson, whose actions have caught up with her. Meanwhile, Emma meets Leo's friends from home, and one of the kids' circumstances changes dramatically.
Noel Fitzpatrick and the team deal with two emergency cases in this edition. Lara the cat went missing after jumping into a removal van, but escaped, only to be hit by a car and then attacked by a fox. One of its rear legs is shattered and the vet has to perform reconstructive surgery to rebuild it. Chief, an eight-year-old Northern Inuit, dislocated its hip while chasing a fox. Noel thinks it needs hip-replacement surgery, but owner Nigel can't afford to pay for the operation.