Jake and Holt clash over the merits of a new hire in the 99th precinct. Terry, Amy, Rosa and Charles try to do something about the cluttered bullpen.

Jake and Rosa must deal with a mother in mourning as they work and rework a crime scene in order to solve a difficult murder case with confusing evidence.

Terry believes the Pontiac Bandit is stealing cars again, but Jake is convinced his friend wouldn’t do that. The rest of the squad fight to keep Shaw’s a police bar after some firemen stake their claim to it.

Gina spends time with each member of the squad.

Jake and Gina attend their 20th high school reunion. Back at the Nine-Nine, Charles helps Rosa with her love life.

Jake and Charles investigate a case of Hitchcock and Scully’s from the 1980s. Meanwhile, Amy’s uniformed officers and Terry’s detectives fight over limited resources.

Jake and Amy go on their honeymoon. Capt. Holt finds out whether he is the new commissioner of the NYPD.

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.

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.

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.

Charles plans an elaborate scavenger hunt for Jake’s bachelor party, but the day goes awry when the guys decide to take some short cuts instead. Meanwhile, Amy’s bachelorette party escalates when the ladies realize she previously slept with a member of her soon-to-be wedding band.

When a fire destroys Charles’ food truck, Pimento unexpectedly shows up to the scene as the insurance agent. Meanwhile, Rosa helps Amy to see that it’s okay to get excited about picking her wedding dress, and Gina and Terry coach Holt in the art of social media.

Jake invites his newly discovered half-sister to stay with him in New York, but when he and Amy realize she’s a bit of a nightmare, they must find a way to get her back home to Dallas.

Jake and Charles realize that they’ve been suckered into the cult-like NutriBoom pyramid scheme, and must find a way to sever their contracts.

Jake surprises Amy with an investigation into a string of arsons connected to her favorite crossword puzzle author, Vin Stermley. Meanwhile, Gina helps Holt jazz up his Commissioner candidate speech, and Terry, Rosa, Hitchcock and Scully argue over who is most deserving of the new detective car.

Jake embarks on an all-night long interrogation in order to elicit a confession out of a suspect. But when Captain Holt skips the opera in order to stay back and help, the two cops clash over how to get him to talk.

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.

After Seamus threatens Kevin, Holt devises an elaborate plan to hide him in a safe house, with Jake as his guard. Kevin is miserable as the 99 works overtime to find Seamus and take him down.

When Seamus Murphy returns to redeem the favor Holt owes him, the precinct searches for a loophole that will allow Holt to uphold his end of the bargain without breaking the law.

Rosa begs Jake to help her break some big news to her parents, but her plan is thrown off when they wrongly assume the two are dating.

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.

When Terry’s favorite author, DC Parlov, returns to the precinct because his latest manuscript was stolen, Terry and Jake convince Rosa to go undercover with them at a fantasy fiction convention to find the culprit. As drama ensues between Parlov and another writer, Terry admits that he’s been writing a book of his own. Back at the precinct, Holt, Amy and Charles take a forensics course, but Charles’ big mouth gets him in trouble.

Jake and Amy attempt to get their parents to bond over Thanksgiving dinner; When Holt’s Thanksgiving pie is stolen from his office, he searches for the culprit.

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.

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 Nine-Nine embarks on its fifth annual Halloween Heist and, as usual, everybody has a plan and no one is safe. Relationships and friendships are tested as the title “Amazing Human Slash Genius” must be snagged by midnight, leaving everyone pitted against each other.

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.

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.

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 Jake and Rosa are framed for a crime they didn’t commit, it’s up to the Nine-Nine to find a way to bust them out.

As Jake and Rosa continue their search for a bank-robbing operation with Lieutenant Hawkins, they realize there’s more to her team than meets the eye. After discovering a dangerous secret, they call for back-up from Holt and Pimento. Meanwhile, Boyle objects to Gina’s new boyfriend.

Jake and Rosa try to earn the respect of their idol, Lieutenant Melanie Hawkins. Meanwhile Charles, Terry and Gina test different parenting methods to resolve a conflict between Scully and Hitchcock.

Captain Holt’s mom seeks support from the precinct after her house is robbed. Meanwhile, Terry, Rosa and Boyle remodel the breakroom and Amy teaches Gina how to change her own car tire.

Amy suddenly vanishes hours before taking the Sergeant Exam at Cop-Con, and it’s up to Jake and Rosa to find her before it’s too late

The precinct packs up and heads to the Tri-State Police Officers’ annual Cop-Con, which is usually the Nine-Nine’s excuse for a big annual party. But the squad’s fun is threatened this year when Holt asks them to be on their best behavior.

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. Manwehile, Jake and Amy get a glimpse into the difficulties of parenthood and answer some tough questions when they babysit Terry’s kids.

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.