Jake and Rosa assimilate to their new lives behind bars, but both are coping in very different ways.

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.

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.

The Nine-Nine embarks on its fifth annual Halloween Heist and, as usual, everybody has a plan and no one is safe.

To track down the infamous arms dealer Dan "Daniel" Valdano, Jake and Terry go undercover at an illegal gambling club.

The always unwelcome Vulture pops back into Jake and Amy’s lives, threatening to swoop in and take something important away from them.

Jake and Amy attempt to get their parents to bond over Thanksgiving dinner, but their first holiday together as a family does not go well.

When Terry’s favorite author, DC Parlov (guest star Fred Melamed), returns to the precinct because his latest manuscript was stolen.

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.

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. Part 1 of 2.

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. Part 2 of 2.

After Seamus (guest star Paul Adelstein) threatens Kevin (guest star Marc Evan Jackson), Holt devises an elaborate plan to hide him in a safe house, with Jake as his guard.

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.

Jake embarks on an all-night long interrogation in order to elicit a confession out of a suspect (guest star Sterling K. Brown).

Jake surprises Amy with an investigation into a string of arsons connected to her favorite crossword puzzle author, Vin Stermley (guest star David Fumero).

Jake and Charles realize that they’ve been suckered into the cult-like NutriBoom pyramid scheme.

Jake invites his newly discovered half-sister (guest star Nasim Pedrad) to stay with him in New York, but when he and Amy realize she’s a bit of a nightmare.

When a fire destroys Charles' food truck, Pimento (guest star Jason Mantzoukas) unexpectedly shows up to the scene as the insurance agent.

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.

When Rosa responds to an active shooter alert, the rest of the squad is forced to stay back, desperately fearing for her safety.

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.

Jake and Amy’s wedding day is majorly threatened, and Charles and the whole squad rush to help save it.