
Lives hang in the balance as detectives and prosecutors pursue justice in New York City. 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 -- and keep the worst offenders off the streets.

The ex-wife of a firefighter who married a rich Sept. 11 widow is suspected of murder.

After an elderly woman is found beaten to death in her apartment, detectives discover she was the lead witness in the deportation prosecution of a reputed Nazi war criminal.

Jack McCoy learns that his old colleague, ADA Daniel Tenofsky, has been murdered, and detectives discover he was living and working under a false identity.

When a deliveryman is gunned down on his route, Briscoe and Green discover that he was active on a website for arranged liaisons and that his wife had just bought a gun.