When Peralta and Diaz are framed for a crime they didn't commit, it's up to the other members of the Nine-Nine to find out what really happened and try to save them from going to jail
Peralta and Diaz learn there's more to Lt Melanie Hawkins' team than meets the eye as they keep searching for the gang of bank robbers. Jeffords, Boyle and Santiago suspect Gina's harbouring a secret.
Peralta and Diaz try to earn the respect of their idol, Lt Melanie Hawkins. Boyle, Jeffords and Gina aim to resolve a petty conflict between Scully and Hitchcock. Holt loses Santiago's favourite pen.
Captain Holt's mother seeks support from the precinct when her house is burgled. Jeffords, Diaz and Boyle redecorate the breakroom. Santiago teaches Gina how to change a tyre.
Santiago suddenly vanishes hours before she is due to take her sergeant's exam. It's up to Peralta and Diaz to locate her and bring her back to sit the test before it's too late.
The squad head to the annual Tri-State Cop-Con event, which is usually their excuse for a big party. But their fun is threatened when Captain Holt asks them to be on their best behaviour.
Jeffords wants to file a complaint against a fellow police officer who stops him in his own neighbourhood while he is off duty, but Captain Holt has other ideas. Peralta and Santiago try babysitting.
Peralta and Boyle go to extremes to catch a local bike thief. Diaz tries to soothe Jeffords' ego after a professional setback. Santiago spends some precious time with Captain Holt.
A burglary on the set of a TV detective show distracts Peralta and Diaz from the precinct's on-going evaluation. The rest of the squad concentrate on the task in hand as a new auditor takes over.
When one of the precincts in the area must be closed, an evaluation process takes place. The team are confident they'll be assessed fairly, until they hear that the auditor is Santiago's ex-boyfriend.
Only one fugitive remains on the loose on the streets of Brooklyn after the mass escape of convicts from the prison van and Peralta is forced to enlist a surprising ally in order to apprehend him
When a prison van crashes, a mass escape of convicts occurs and the squad go on a manhunt to track them down. Peralta and Santiago make a bet on which of them can bring in the most escaped prisoners.
Boyle enlists Peralta's help in tracking down his son's favourite toy for Christmas, but they accidentally face off against a Latvian crime ring as a result. The team prepare for a carol competition.
Peralta and Holt find the motivation to help Captain CJ with a big case that is proving problematic. Jeffords imposes a green initiative and tells Gina to remove her portable heater from the office.
When a famous author receives death threats, Peralta and Jeffords take on the case so that Jeffords can meet his lifelong hero
Peralta goes to extremes trying to impress Santiago's father at Thanksgiving dinner. Holt helps Pimento deal with no longer being able to work for the NYPD.
When Pimento and Diaz decide to tie the knot, the squad members try to prepare the perfect wedding under Santiago's careful direction
On Halloween night, the squad members follow precinct tradition and compete for the title of Ultimate Detective Slash Genius
Peralta enlists help from an unexpected source on his latest case. Holt looks for ways to improve the team's morale. Santiago is full of curiosity when Diaz starts to take long breaks from her desk.
The team go on a road trip to help Peralta and Holt take down crime boss Jimmy Figgis, but the plan is hindered by an unforeseen injury. As chaos ensues, Santiago and Peralta share an awkward reunion.
Crime boss Jimmy Figgis sees Peralta and Holt's viral video and comes looking for them, so the duo begin their fight back. A new captain takes over back at the precinct, but is he up to the job?
Peralta and Holt must adjust to their new lives in the Witness Protection Programme while crime boss Jimmy 'The Butcher' Figgis is still at large, but their anonymity could be compromised by a video