Detective Jake Peralta is a talented, but carefree police detective at Brooklyn's ninety-ninth precinct who, along with his eclectic group of colleagues, are used to having a lax captain around the office. However, when tightly-wound Captain Ray Holt takes over, he is determined to make this dysfunctional group of detectives into the best precinct in Brooklyn.
When Jake is late for roll call, Captain Ray Holt assigns him to a graffiti case that Jake feels is below his level. However, when the culprit turns out to be the Deputy Commissioner’s son, the case becomes a major problem. Meanwhile, Gina’s psychic friend visits the precinct and gets inside Charles.
Jake has a slew of unsolved cases that he can't seem to close, and the other detectives don't want his losing streak to rub off on them. Meanwhile, Holt asks Amy to run lead on the Junior Policeman Program for at-risk youth, and she enlists Rosa and Gina's help. Also, Boyle helps Sergeant Jeffords with a special case he cannot solve.
Much to the team's annoyance, Jake hits on an attractive medical examiner, Dr. Rossi, at a crime scene and holds up the autopsy report. He learns his lesson when Dr. Rossi turns out to be more than he bargained for. Meanwhile, Amy's purse-snatching case is stalled when the sketch artist is out sick, but she discovers that Sgt. Jeffords has hidden artistic talents.
It's Halloween night, a busy time of the year for any police precinct. Amy detests the holiday, and is not thrilled when she has to don a costume to go undercover on street patrol with Charles. Back at the precinct, Jake bets Captain Holt that he can steal his Medal of Valor before midnight, which results in him bringing out some costumes of his own.
When Jake makes an arrest without a lot of proof, he only has 48 hours to collect evidence, or else the "perp" will be released. After his unsuccessful interrogation of the suspect, Jake forces his co-workers to spend their weekend helping him crack the case. So, while the team is stuck at the precinct, Charles judges a pie contest between Gina and Rosa, and Holt helps Terry look better in the eyes of his in-laws.
Jake's dream comes true when he gets to spend the day with his hero, Jimmy Brogan, a former crime reporter. But the dream becomes a nightmare when Jake's comments about Holt and the precinct are considered "on the record." Meanwhile, Terry and Charles try to teach Rosa how to be less terrifying on the witness stand.
When Sal's Pizza burns down and the fire marshal quickly assumes that the owner is the prime suspect in the investigation, Jake does everything in his power to prove him wrong, even if it means stepping out of his jurisdiction. Meanwhile back at the precinct, chaos ensues when a computer virus publishes everyone's browser history.
Captain Holt receives death threats and Jake is put in charge of his security, a job he enjoys and abuses as much as he can. Meanwhile, Amy attempts to get the precinct to take a Christmas photo for Holt, but a lack of enthusiasm and Rosa's refusal to smile defeats her efforts. Also, Sergeant Terry Jeffords gets his mojo back.
Jake is interested in one of Rosa's perps, Doug Judy who has information about the "Pontiac Bandit," a car thief whom Jake has been tracking for years. Meanwhile, the station tries to accommodate a scooter-bound Charles' every need when he returns to work, but he proves to be too much to handle. And Captain Holt struggles to find a home for two puppies.
The precinct heads to Tactical Village Day, a mandatory training course in which all regional precincts compete. While there, Amy runs into Teddy, a fellow officer she used to date. Meanwhile, Holt becomes addicted to a game on his phone and Rosa is pissed at Charles for not inviting her to his wedding.
Charles asks Jake to be the best man at his wedding, a role that requires Jake to be supportive in important wedding decisions, ranging from cake tasting to floral arrangements. Meanwhile, Terry, Amy and Gina support each other as they start a new extreme diet and Holt helps Rosa make a sincere apology.
Jake’s investigation of philanthropic civic leader Lucas Wint is shut down by Commissioner Podalski. Still determined to crack the case, Jake enlists Amy and a reluctant Captain Holt to help him uncover more evidence, to help him uncover more evidence, even if it means facing suspension. Meanwhile, Charles is devastated over pre-marital problems with Vivian, and Gina knows just how to cheer him up.
The squad has time to kill when the arrival of the Serbian President’s motorcade to Brooklyn has been delayed. So, Jake launches “The Jimmy Jab Games,” an annual series of competitions in the precinct. Meanwhile, Terry and Holt take on a new drug task force approved by Holt’s nemesis, Deputy Chief Madeline Wuntch.
“The Pontiac Bandit,” aka Doug Judy, is back in custody, after jamming up Jake and Rosa in his previous encounter with them. But when Rosa discovers that Judy knows the whereabouts of the “Giggle Pig” drug leader, Capt. Holt offers the perp a plea deal to help track down the drug kingpin. Meanwhile, Gina and Boyle are nervous that their parents might be getting too close, and Santiago makes Holt a Christmas gift against his wishes.
Jake is heartbroken over Sophia, but his spirits are lifted when the squad is invited to a Homeland Security terrorist training simulation. That is, until the agent in charge assigns them the lame role of playing hostages. Meanwhile, Gina administers a psychological exam to Holt, and Amy and Rosa compete for a day off from work.
Jake and Charles convince Terry to take a weekend camping trip as a much needed "babymoon," but they soon realize it might not be the idealistic weekend for which they had hoped. Meanwhile back at the precinct, Holt gives Rosa some important relationship advice and Amy enlists Gina's help to prepare her for an important presentation.
Terry leaves Jake in charge of entertaining his pregnant wife, Sharon, while he and Rosa head to Rikers to learn more about the Douglass Street murders. But when Sharon's water breaks sooner than expected, crisis ensues at the precinct. Meanwhile, due to an internet outage, Amy and Charles must process all the paperwork by hand to avoid the bullpen from overflowing with perps and Holt is forced to confront his ex-boyfriend.
In an attempt to solve an international case, Jake and Rosa are forced to work with a pair of Swedish cops and things get very competitive, very quickly. Meanwhile, Amy and Terry offer to help Gina prepare for a big test and Holt enlists Charles to sub in as his squash partner for an annual tournament.
Jake and Amy are excited to go on their first real vacation together, but Amy’s perfectly planned cruise ship itinerary is thwarted when they discover an old adversary is on board with them. Meanwhile, Gina and Terry help Captain Holt survive a visit from his sister, Debbie, and Charles and Rosa vie for the same apartment.
On his birthday, Jake brings Amy to meet his mother, but a surprise appearance by his dad throws a wrench in his special day. Meanwhile, Rosa and Charles struggle with a new mandate regarding body cams while on a stakeout with Terry, and Gina forgets to inform the precinct about an important plan of Holt’s.
The Nine-Nine host the detectives from the Nine-Eight, their neighboring precinct, reuniting Jake with his old partner. Charles is immediately jealous and tries to reclaim his best friend status with Jake. Meanwhile, the rest of the precinct tries to be welcoming to the Nine-Eight, but it doesn’t go as well as they had planned.
As Jake struggles with his first case back at the precinct, he encounters Jess Day, who is visiting New York, and enlists her to help him find his suspect. Meanwhile, Holt researches ways to increase office morale and Amy tries to figure out why Rosa keeps taking such long breaks. (Crossover with New Girl, season 6 episode 4)
When famous author DC Parlov receives death threats, Jake and Terry take the case, so that Terry can meet his lifelong hero. Back at the precinct, Gina forces her way into the Boyle clan of cousins in an attempt to choose the location of the annual Boyle family vacation. Meanwhile, Holt's anger peaks when Amy chooses Kevin's side in their argument about a math puzzle.
Captain "CJ" is having major problems with a big case, and Jake and Holt find the motivation to help him out. Inside the precinct, war ensues when Terry enforces a green initiative and tells Gina to get rid of her precious space heater, while Rosa and Boyle take a break from the night shift to visit a foot massage parlor.
Charles enlists Jake’s help in tracking down his son’s favorite toy for Christmas, and the pair finds themselves accidentally facing off against a Latvian criminal ring as a result. Back at the precinct, the team gears up for their annual Christmas carol competition against their sworn enemy: the MTA.
A mass escape of convicts from a prison van in the streets of Brooklyn sends the entire squad on a manhunt. The only key witness? Former NFL running back Marshawn Lynch. Meanwhile, Jake and Amy place a bet on who can bring in the most escaped convicts - and the loser has to move into the winner's apartment.
Terry's ex replaces Teddy in evaluating the precinct, but Jake and Rosa are distracted by a burglary case that occurred on the set of one of their favorite detective TV shows. As the rest of the Nine-Nine concentrate on the audit (and Terry's past relationship strategies), Jake and Rosa pass time with the series star and producer, who meddle in the case and charm Jake with the glamour of show business.
In what could be their last case as partners, Jake and Charles go to great extremes to apprehend a local bike thief. Terry shockingly isn’t in the lead for “Mr. Nine-Nine” (the detective who has solved the most cases), leaving Rosa determined to boost his ego. Meanwhile, Amy spends some precious time with Holt.
Sergeant Jeffords is stopped by a fellow police officer while off-duty in his own neighborhood. When the incident escalates, Terry wants to file an official complaint against him, but Captain Holt has other ideas. Meanwhile, Jake and Amy get a glimpse into the difficulties of parenthood and answer some tough questions when they babysit Terry's kids.
Jake and Rosa assimilate to their new lives behind bars, but both are coping in very different ways. Jake bonds with his cellmate, Caleb, and is forced to join a prison gang led by notorious inmate Romero, in order to gain his protection. Meanwhile, in the women's prison, Rosa puts Holt and Terry to the test by having them complete outrageous favors for her. Back in the precinct, Amy and Charles are doing all they can to exonerate their colleagues
When the warden asks Jake to investigate Romero's drug smuggling operation, Jake and Caleb find themselves caught between the loyalty Jake has sworn to both of them. Meanwhile, Amy is offered a deal by a local mobster who claims he can prove that Hawkins is guilty, but Holt and the rest of the gang think they have a safer plan.
Now that he's officially back at the precinct and desperate to solve a real case, Jake finds a loophole to get out of his temporarily designated desk duty. Unfortunately, that loophole rests on his ability to pass an official evaluation performed by Holt. While Charles provides Jake with moral support, Terry and Amy help Rosa, who believes Pimento may be cheating on her.
To track down the infamous arms dealer Dan "Daniel" Valdano, Jake and Terry go undercover at an illegal gambling club, but when Holt gets involved to coach the two in the art of poker, his addiction resurfaces. Meanwhile, Boyle buys a food truck that was formerly used in a brutal string of murders without telling his investor, Amy, and Hitchcock and Scully challenge Rosa to a "Butt-lympics".
The always unwelcome Vulture pops back into Jake and Amy’s lives, threatening to swoop in and take something important away from them. Meanwhile, Boyle and Rosa must track down "Sergeant Peanut Butter," the kidnapped NYPD horse that Charles envies, and Holt challenges Terry to be less image-conscious.
While the entire precinct attends a funeral in LA, Holt learns that he is in the running to become Chief Commissioner of the NYPD - his dream job. But after missing their flight back to New York, Jake must devise a variety of ways to get Holt back in time for the interview. Forced to stay with some estranged members of the Boyle family, Amy tries to convince everyone that she can be laid back, Terry panics about losing his first-class flight and Charles uncovers some new information about Rosa's personal life.
Jake is called upon to negotiate a hostage situation with a jewel thief, only to discover that the culprit seems to be a familiar face. Amy and Gina help Charles with the high demands of his new food truck, and Holt panics when a member of the Police Commissioner selection committee decides to interview Hitchcock about Holt.
When Rosa responds to an active shooter alert, the rest of the squad is forced to stay back, desperately fearing for her safety. Feeling helpless, Jake frantically brainstorms ways to offer his assistance, Terry faces an existential crisis and Gina and Amy try to make themselves useful by fixing Rosa's broken toilet.
Rosa and Amy team up to take down their "white whale" suspect - a ruthless killer who has managed to elude them for seven years - while Terry helps Jake tackle his wedding planning chores. Then, Captain Holt and his rival, Olivia Crawford, try to convince each other to step down in the campaign for Commissioner.
Jake and Amy's wedding day is majorly threatened, and Charles and the whole squad rush to help save it. Amidst the chaos, Holt hesitates to open the email that will indicate if he has won his campaign for Commissioner, despite Gina's encouragement. Meanwhile, Terry gently pushes Rosa towards a potential love interest.
The cast and the creators of the ever popular "Brooklyn Nine-Nine" took to San Diego Comic-Con to discuss the series and Season 7. The panel featured Luke Del Tredici (Executive Producer), Dan Goor (Executive Producer & Creator), and series stars Andy Samberg, Melissa Fumero, Terry Crews, Joe Lo Truglio, Dirk Blocker, and Joel McKinnon Miller.