When people start spontaneously turning hard as stone—with no real connection between victims—Nathan, Duke, and Lexie find themselves in a race against time to find the troubled person responsible.
The wife of the Governor is found murdered, and it was no accident - a scandalous secret was behind the murder, and a fundamental right is challenged in the process.
The murder of a corrections officer leads the Major Case Squad to a corrupt ring of abusive guards in a Brooklyn prison, and the key to exposing the activity lies with a prison nurse who is dating Detective Mike Logan (Chris Noth).
