Pete's lineups at work are out-performing his fantasy roster. Andre makes a trade with Jenny that could threaten his career. Rafi and Taco try to cash in on Kevin's mortality.
Frank hires a new chef through his refugee center - an acquisition that catches Torgeirs attention in more ways than one. The death of Duncan Hammer attracts both the police and his brothers crew - bringing them closer to Torgeir and Frank.
The BAU are called to Utah to investigate the murder of a women who died by being buried under stones. All while Penelope plans a Day of the Dead party.
The Doyles investigate an unusual murder that resembles the work of an eccentric novelist.
Rudy sees his father with another woman. Jess helps Rudy investigate his dad and uncovers an even deeper secret.
Danny takes the team trick-or-treating; Lulu tries to teach Terry to celebrate Halloween as an adult; The Cannon lets his competitive streak get the best of him during a visit to the cemetery.
After creative differences over what constitutes tasteful nudity cause Frank to pull his money out of "Lethal Weapon 6" during filming, Mac, Dennis, and Charlie screen their rough footage for investors in hopes of raising enough capital to finish the production of their latest masterpiece.
When Ultra's most wanted, Killian McCrane, resurfaces after years of being in hiding, Stephen enlists John's help in tracking him down. John reluctantly agrees to help, but changes his mind when he learns that Killian isn't after Jedikiah as everyone suspects. Stephen, wants to help, but Cara explains that John's history with Killian, which brings back a flood of memories from John's past, making him do something he never thought he would do again. Meanwhile, Stephen's mom is suspicious of his whereabouts, putting him in an awkward position.
With a line-up of hair-raising Halloween picks, the guys crawl back underground in Pennsylvania in search of the "Mole Man." Later, the guys look for rusty relics at an abandoned Oklahoma amusement park. In Missouri, Mike and Frank tour a former penitentiary with a seriously spooky vibe. Notorious for hauntings, the massive institution is one of the darkest and creepiest places they've ever picked.
Oliver discovers a man who goes by the name “The Mayor” is bringing illegal guns in to The Glades, so Oliver sponsors a “Cash for Guns” event to help clean up the city. Unfortunately, The Mayor crashes the event with his gang and seriously injures Sin. The Canary is furious when she learns her friend is in the hospital and sets out for revenge. Meanwhile, Felicity stuns Oliver with a bit of information about the Canary, Donner asks Laurel to dinner, and Diggle reconnects with an old friend.
When Ike hits puberty, he and Kyle start to grow apart. To save their relationship, Kyle takes Ike to see a live performance of Yo Gabba Gabba.
As Charlie, Rachel and Gene question Monroe's true allegiance, Miles himself is weary of his former friend's intentions. Meanwhile, Aaron continues to have visions that lead to endless questions.
A hotel guest is blown away by the Continental breakfast, and a psycho's victims stay positive.
When Jackie’s homemade costume nearly ruins Bert’s Halloween, Kate steps in with the costume he wanted, and Bert’s so overjoyed that he asks Kate to take him trick-or-treating. This leads to a fallout between Jackie and Kate, which gets worse when Bert goes missing. Pete tries to get a neighborhood teen to admit he egged Pete’s house last Halloween. Diane steps in to intervene and Warren and Hillary get involved.
Eric Houston is found stabbed to death in a seedy motel, but the ensuing investigation is stymied by a long list of suspects. Lt. Joe Kenda refuses to let the case run cold, and deploys a groundbreaking new technology to catch the killer.
After being freed from her confinement to the psych ward, Root needs Shaw's help with a directive from the machine; Finch and Reese look into a mild-mannered investigator.
The story of a 39-year-old Jimmy Connors and his unexpected and extraordinary underdog run at the 1991 US Open, where he played as a wildcard entrant and reached the semifinals of the men's singles draw.
On his first day on a new job DCI Tom Mathias investigates a blood soaked bathroom and the disappearance of 64 year old Helen Jenkins. The inquiry focuses on an old Children's home above the ravine spanned by the Devil's Bridge.