An ex-cop turned con threatens to jump to his death from a Manhattan hotel rooftop. The NYPD dispatch a female police psychologist to talk him down. However, unbeknownst to the police on the scene, the suicide attempt is a cover for the biggest diamond heist ever pulled.

The third installment of the “Law & Order” franchise takes viewers deep into the minds of its criminals while following the intense psychological approaches the Major Case Squad uses to solve its crimes.

In cases ripped from the headlines, police investigate serious and often deadly crimes, weighing the evidence and questioning the suspects until someone is taken into custody. The district attorney's office then builds a case to convict the perpetrator by proving the person guilty beyond a reasonable doubt. Working together, these expert teams navigate all sides of the complex criminal justice system to make New York a safer place.