The murder of a corrections officer leads detectives to a women's prison where a guard was linked to an inmate Carmichael put away on drug charges and a confrontation with defense attorney Danielle Melnick.

A frustrating investigation of a purse-snatching victim who was fatally shot leads to tension between Briscoe and Green over age and racial innuendoes. Briscoe notices his partner has developed a dangerous habit.

After sanitation workers find a teenage boy's body, the investigation leads to a school bully who displays an avid interest in martial-arts weapons, and whose father bought the murder weapon.

The murder of a white teen-ager in Harlem seems like an open-and-shut case until two patrol officers are implicated in the crime.

The body of a teacher, suspected of having an affair, is found in a car trunk and the investigation involves husband and father-in-law, both of whom are psychiatrists.

After a disabled boy dies of smoke inhalation during a fire, his parents and a building tenant with a history of ""accidental"" fires become suspects.

The killing of a school-hockey coach leads to a case in which the defendant claims that he committed the crime while suffering from ""sports rage.""

When an hispanic male is found dead from a severe chest trauma, Detectives Briscoe and Green discover that he and two other illegal immigrants had been in a staged automobile accident. As evidence mounts linking numerous similar car crashes with the same employer, chiropractor, insurance adjuster, and lawyers, A.D.A.s McCoy and Carmichael must determine who is ultimately responsible for the man's death, from which so many others profited.

When a girl's parents frantically search for her, Briscoe and Green see that the girl's belongings were packed up in her apartment. They learn that the girl had been seeing a married man -- her boss. When the boss is brought up on charges, his wife sheds some new evidence.

The investigation into the death of an 11-year-old girl uncovers the possible culpability of the child's mother and a rebirthing therapist.

A woman is drugged and falls to her death, and the evidence suggests that her ex-boyfriend and her current husband's ex-wife may have conspired to kill her.