Jenna and Matty continue to rekindle their friendship while they throw a party for Jake; Jenna's latest Idea Bin post threatens everything.

After a surprising turn of events in the Nine-Nine’s attempt to track down Adrian Pimento’s hitman, the precinct drops everything when they suspect Holt is in danger.

When a high school student becomes an innocent victim of a gang retribution incident, a very determined Lt. Casey tries all means necessary to resolve the issue. Severide lends a hand to Detective Holloway, who is working a dangerous undercover investigation, and watches over her 9-year-old son at the firehouse. Brett and Jimmy are called to aid a woman who takes a fond liking to Jimmy. Meanwhile, Otis makes a surprising discovery that leaves him very concerned and Herrmann goes toe-to-toe with Stella to claim bragging rights over who can best run a bar.

Amy and Karma try to use a Halloween party as an opportunity to move on; and Shane is suspicious of Liam.

When NZT floods the streets of New York City and threatens to become a national epidemic, the FBI partners with the DOJ in a city-wide manhunt to find the lab producing the drug. Also, Brian has trouble adjusting to his new reality when he lacks the resources to continue searching for Piper.

Agent Daisy Johnson brings the Secret Warriors together for a mission that will affect them all; knowledge of Hive's powers has S.H.I.E.L.D. mistrusting everyone.

Gibbs and Senior FBI Agent T.C. Fornell unite after two British prisoners, including a former spy, escape and arrive stateside via a shipping container. Also, McGee is busy apartment hunting and determined to find out how DiNozzo purchased his lavish place.

After a Navy lieutenant dies during a clandestine visit to a general’s hotel room, Special Agent Pride and the NCIS team are asked to break standard protocol for the murder investigation.

Jess invents a male alter ego, “Jeff Day” in order to buy a new car from a sexist salesman, but her plan backfires when both Nick and Sam arrive at the dealership pretending to be him. Meanwhile, Schmidt and Cece panic when Winston decides to bring his new prankster girlfriend, Rhonda as his plus one to their wedding.

Despite being happy with Sam, Jess confesses to Cece that she had a sex dream about Nick. And Schmidt attempts to help Winston land Furguson a cat audition when he finds out Aly’s boyfriend is a talent agent for pets.

When a young woman falls to her death with a cryptic note attached to her body, Kirsten is convinced the message is somehow tied to her own past. But when the stitch reveals the victim was brainwashed to kill movie director Roman Bain, the team ends up in a race against time to find the person responsible before someone gets seriously hurt. Meanwhile, Camille’s defense training unexpectedly reunites her with Liam

The buyers head to Moreno Valley and descend upon auctions at a facility that has been known for great scores. Mary hopes to follow the others to a solid locker, but Dave is intent on a score of his own or making the others pay heavily for theirs. Both Ivy and Rene get massive lockers packed with goods, but only one will have a massive pay day.

The hunt for lockers continues at Riverside, CA. Jarrod and Brandi try to teach a hard lesson to Bozek, but the price of education may be to high for them. Ivy tries to hit it big with a low paying locker while Darrell and Brandon limp into a locker that may leave them all wet.

Cisco Ramon works late at night attempting to improve the Flash's suit to make it more bullet proof and odor resistant.

Equipped with the tachyon device, Barry believes he is fast enough to stop Zoom and wants to open the breaches to catch him. Harry strongly advises against that plan but after Barry convinces him, Harry reveals that Cisco has the power to re-open the breach. Meanwhile, Hunter Zoloman’s painful story on Earth-2 is revealed.

Mindy tries to get back into the dating scene.

Eileen faces her book club for the first time after her family’s “outing,” but things take a surprising turn when instead of shunning her the ladies begin opening up – way too much – about their own problems. Kenny’s first trip to the “gayborhood” coffee shop is everything he’d hoped for, until Pat tags along with him to a gay dodge ball match.

Ten artists will be revealed as safe by America’s votes. The bottom two artists will then compete for the Instant Save and one will be eliminated. Grammy Award-winning artist Gwen Stefani performs her new single “Misery.”