The lives of an eclectic group of detectives in a New York precinct, including one slacker who is forced to shape up when he gets a new boss.
After a nightmare stint in prison for a crime he didn't commit, Jake returns to the Nine-Nine, where personal and professional changes are afoot.
In Season 2, Jake smokes out a mole in the precinct, Amy finds a flaw in one of Holt's old cases, and the precinct gets antiterrorism training.
Talented but laid-back detective Jake Peralta and his dysfunctional peers struggle to get along under their precinct's strict new captain.
While the Nine-Nine tries to keep a lid on things in Brooklyn, Jake and Holt are in a witness protection program in Florida, where Holt is thriving.
After Holt's transfer, the precinct isn't happy with his replacement. Amy and Jake adjust to romance, while personnel changes shake up the department.
As Jake and Amy adjust to married life and Holt squares off with a rival, the hijinks, heists and crime-fighting continue at the Nine-Nine.
Jake and the squad must try to balance their personal lives and their professional lives over the course of a very difficult year.