A group of detectives and officers work at the 15th Precinct, a seedy police station in Manhattan, New York City. Detective John Kelly, a 15-year veteran of the force, deals with his partner Andy Sipowitz, an alcoholic 20-year vet...

Inspector Lastarza of the Organized Crime Unit tells Lt. Fancy and Kelly that they stop applying pressure to the local mob for their pursuit of Angelo Marino is hurting the FBI investigation to nail Marino. Meanwhile, Sipowicz reg...

Janice's policeman father arrives for a visit and tells her about his pending indictment for corruption involving being an informant for Angelo Marino when a book that Marino had on him as a list of all of his informants... includ...

Kelly begins moonlighting as a security guard for Susan Wagner, a wealthy woman who's married to an abusive husband. But things take a turn when the husband is shot and killed, and Mrs. Wagner becomes a suspect. Meanwhile, Sipowic...

Martinez goes to visit his drug-addicted brother, but finds the superintendent of his building, Hanlan, is a retired cop who is on the take and is forcing the tenants out, and Kelly sets out to prove that Hanlan is responsible for...

A minor skirmish on a basketball court leaves one of Kelly's friends dead and the other one in jail for manslaughter. Meanwhile, Sipowicz is convinced that a man knows more about his wife's death in a highway shooting than he is l...

A shady homeless man, named Lou, comes to the station thinking he's a werewolf and demands to be locked up into a cell before he kills someone when the night comes. However, things take a turn when Kelly investigates Lou when he m...

Kelly, Martinez, and the officers arrest Luis Hernandez, a baker, for a murder charge. But Detective Mike Roberts, as well as Detective Kelly, try to get him to confess to the robbery of four taxicabs so they can link him to the m...

Janice is contacted by Richie Catena, a mob button man and former associate of Marino. They want her to start doing favors for them again or they will expose her past activities with the late Marino. Janice agrees to co-operate wi...

Kelly, Medavoy, and Martinez investigate the brutal murder of a entire upper class family. Meanwhile, Inspector Lastarza orders Janice to cooperate with the mob even though it results in the death of the person whose license plate...

As Christmas draws near, the zone commander, Haverill, starts to come down on Lt. Fancy about his work skills and Sipowicz later intervenes and threatens Haverill to lay off Fancy or he will reveal some incriminating evidence abou...

The mob hit man who killed Giardella and who Laura can identify, is trapped on the roof of the building with a hostage. Martinez works on his first detectives case, which involves a fake ATM machine taking peoples money. Meanwhile...

Medavoy leaves his wife and finally tells Donna about his romantic feelings for her, which turn out to be mutual. Sharon LaSalle, a police academy classmate of Kelly's, joins the squad and shortly after, she and Sipowicz investiga...

Sipowicz has a cavity and decides to have it taken care of by his son's dentist. At the dental office, Sipowitz finds himself unsuccessfully trying to prevent the suicidal Dr. Fleishman from jumping off a 28th floor ledge. Meanwhi...

Lt. Fancy insists to a reluctant Larson that he take a drug test and when it comes back positive of methamphetamine use, he is fired. One of Detective Mike Roberts' informants/girlfriends comes to the precinct and causes trouble f...

Medavoy suffers a stress-related anxiety attack while working and doesn't want to tell his wife about his personal problems, which displeases Donna who wants him to work things with his wife. Meanwhile, Sipowicz looks into the rob...

Sipowicz suspects a private investigator of bilking a father for the past six months in a scheme to find the man's runaway daughter. Meanwhile, Kelly and Sharon LaSalle investigate the shooting death of a 13-year-old boy and try t...

Mike Roberts meets with Kelly in search of getting some bodyguard and/or P.I. work for himself after quitting the police force. Meanwhile, Laura feels someone is stalking her and gets Kelly to meet her new boyfriend, Dr. Schrager,...

After Robin's husband dies, she gets angry when his will seems to stipulate that Kelly should resume his duties as her bodyguard. Meanwhile, Sipowicz must clear his own son of a drug pushing charge. While investigating a tip on th...

Janice is promoted from vice squad officer to detective and will be working with the other detectives until she can be transferred to the re-organizing intelligence division. Meanwhile, Kelly suspects that his friend, Charlie Lear...

Medavoy tells Donna that he's caught his wife being unfaithful yet again and decides to move out. But he crashes at the station since he cannot afford a place to live. So, Donna asks him to move in with her. Meanwhile, racial host...

Kelly gets an ultra-high priced mob attorney to defend Janice on the double murder charges and helps out with her bail. Meanwhile, Sipowicz tries to make amends with Sylvia who's been attending Alanon meetings. While helping with ...