A mother, enduringly traumatized by the disappearance of her three-year old daughter 15 years ago, has cut herself off from her ex-husband and son. However, when a troubled young woman with a checkered past enters her life, old psychic wounds painfully resurface, as does the illogical and increasingly irrational hope that the young woman may be the daughter she lost so long ago.

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 the criminal justice system, sexually-based offenses are considered especially heinous. In New York City, the dedicated detectives who investigate these vicious felonies are members of an elite squad known as the Special Victims Unit. These are their stories.