A ensemble comedy following 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.
Jake and Amy go on their honeymoon. Capt. Holt finds out whether he is the new commissioner of the NYPD.
Jake and Charles investigate a case of Hitchcock and Scully's from the 1980s. Amy's uniformed officers and Terry's detectives fight over limited resources.
Jake and Gina attend their 20th high school reunion. Charles helps Rosa with her love life.
Gina spends time with each member of the squad.
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.
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.
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 Amy investigate a difficult "he said, she said" case. Holt becomes suspicious after learning his lifelong arch nemesis died in a prison transport accident.
Jake helps Amy navigate the complicated relationship she has with her brother, David. Charles introduces some drama into an undercover mission involving Terry and Holt.
A visitor from Latvia causes Charles and Jake to investigate Nikolaj's family. Holt and Amy bring in famed forensic scientist Dr. Yee to help close a case for Rosa.
Charles brings Jake into a case when a therapist reports one of his patient's missing. Holt finds out Rosa has a new girlfriend that everyone else has met. Amy believes she has accidentally received a package meant for Terry.