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, Fancy and his wife prepare to face a court date when a foster child they've been caring for is ordered back into custody of the real mother who's just been released from a drug rehab program. Sipowicz and Kelly investigate a shooting of mobster Tommy Linardi, whom had taken over the late Angelo Marino's organization, in which turns up a notebook that Marino kept which has Janice's name in it. Janice asks Kelly for help who decides to steal the notebook to protect her from further investigation to Marino's murder, while Fancy again locks horns with Inspector Lastarza over the handling of the case.

Janice's murder trial begins, where Kelly risks the consequences when he testifies on Janice's behalf about their brief affair which results in the Internal Affairs Bureau investigating him. Meanwhile, Sipowicz works with an abused woman who's reluctant to testify against her husband. Medavoy, Martinez, Sipowicz and Kelly investigate robberies of drug dealers in their apartments. Sipowicz's AA sponsor wants him to agree to abide by a contract before he lets him try to restart his relationship with Sylvia. Donna tries to give Medavoy advice about dealing with his divorce. Also, Robin leaves Kelly for good when he tells her that he still has feelings for Janice.

Internal Affairs begins to investigate Kelly and Sipowicz's arresting of the officers they caught robbing drug dealer's apartments, then they begin looking into Kelly's handling of the notebook that was part of Medavoy's case. Janice's murder trial continues where she takes the witness stand to give an emotional testimony about her reluctant involvement with the mob and is sent to prison with a two-year sentence. Meanwhile, Kelly and Sipowicz investigate a double murder.