The discovery of a body in Hell's Kitchen that had been wearing a $40,000 diamond ring leads Briscoe and Green back to the September 11th attacks, as the victim had been reported to have died on the 89th floor of the World Trade Center. The ensuing investigation leads to a fiancee and a lover and the determination that the events of 9/11 may have been convenient timing to hide the fact that she was murdered the night before.

A defense attorney who had just acquitted a cop-killer is gunned down outside a Manhattan restaurant. The detectives start with police officers in the precinct of the injured officer, then to his brother, before they are led to a white supremacist who is part of a national network. McCoy is faced with the unlikely prospect that the defendant's attorney, his friend of 20 years and a friend of the slain lawyer, played a part in the murder of a Florida district attorney following the defendant's arrest. McCoy is able to make a deal that preserves the integrity of his adversary, but not without a cost.