Logan and Briscoe begin their investigation into the death of a hearing-impaired young woman by questioning her two most recent boyfriends.

The statement of a drug dealer who survived a shoot-out that killed a cop leads Logan and Briscoe to suspect that the cop died because he was gay and his fellow officers were reluctant to back him up.

When a Romanian immigrant kills, his lawyer announces he will plead his client "not guilty due to cultural insanity" claiming the man had been conditioned to violence in his homeland.

While investigating several deaths at a diabetes clinic, Briscoe and Logan discover that teenage computer hackers may have tampered with the clinic's medical database.

The initial investigation into the death of a research scientist leads to an animal-rights group until evidence surfaces that her husband's affair with a coworker may point to a possible motive for the murder. When the husband is acquitted, the investigation turns to the individual who provided evidence of the affair.

Stone and the police battle the closed ranks of the Navy to investigate the death of a female Naval officer during a party in a Manhattan hotel.

Stone battles the Brooklyn D.A.'s office over prosecutorial jurisdiction in the case of a mentally handicapped man who confesses to the stabbing deaths of two women.

The absence of a murder weapon complicates the investigation into the murder of a drug addict who stole from her family to support her habit.

The investigation into the murder of a young physician leads to the discovery of an unorthodox and illegal relationship between her fiancé and his psychiatrist.

The confession of an elderly man that he assisted his wife in committing suicide doesn't fully satisfy Stone when rumors surface that the man was once a Nazi collaborator.

After Stone accepts a plea bargain from the much younger and poorer lover of a wealthy older woman found murdered in her apartment, he begins to have doubts that he has sent the right man to prison, especially as he learns more about the attorney who handled the woman's estate.

When Janet Silver kidnaps her daughter from the mall, Logan and Briscoe are sent in to investigate and learn that she committed the crime with the assistance of a children's help organization after going to them with fears that the little girl's father was sexually abusing her.

An engineer and a tribal chief become the chief suspects in the death of a Nigerian woman who died while smuggling heroin internally.

Logan has trouble dealing with Lennie Briscoe (Jerry Orbach), who has been brought in while Cerreta recovers from surgery during their investigation of the murder of Tommy Duff, a small-time hood. Their investigation leads them to a woman who claims Duff raped her, and when her attorney, an old friend of Stone's from law school, calls Olivet to the stand to testify in Mary Kostrinski's defense, Schiff forces Stone to use Olivet's recent rape to discredit her testimony. Logan is upset to learn that Cerreta has accepted another position within the department and will not be returning.

Cerreta poses as a weapons dealer to help Stone build a case against a Colombian hit man, but the deal takes an unexpected turn, resulting in bloodshed.

Cerreta and Stone find themselves on opposite sides of the fence when a storeowner kills two robbers and then claims self-defense as a justification.

Dr. Olivet accuses her gynecologist of rape, but Stone finds his case in trouble when he discovers that Olivet tape-recorded the crime.

The discovery of a young woman's body in the river leads to an investigation of illegal sweatshops and the enslavement of young immigrants.

A teenager's fatal heart attack is traced to fraud and greed on the part of the manufacturer of his pacemaker and their supplier.

After Beth Milgram is found beaten to death in an alleyway after her going away party, Logan and Cerreta initially turn their suspicion to the girl's father after her fiancé, Tommy Beltran, claims that he had hit her after Beth told him they were engaged, but it isn't long before their primary suspect becomes Beltran himself. Stone has the unpleasant task of facing the renowned Cyrus Weaver, who is determined to prove that Tommy Beltran is not guilty of murdering Beth Milgram because he was a poor young man from a Mexican family who could not restrain his rage when his upper-class girlfriend broke up with him.

After Marcus Tate, the respected leader of a controversial African-American rights movement, is assassinated at a rally, Logan and Cerreta attempt to get information on the crime but are stonewalled by many of Tate's followers, who aren't interested in talking to white police officers. Photographs lead them to Mitchell Kolbin, a white man who had followed Tate religiously but who seemed to lose some of his wonderment when Tate began an affair with his wife.

After photographer Julian Decker is found murdered in his studio, Logan and Cerreta discover that Decker's real business was prostitution and acting as a pimp for models who aren't getting the work they needed. Their investigation leads to Angela Brandt, one of Decker's models who found more money working for Decker in other ways, but they also discover that Decker was romantically involved with Angela's teenage daughter. Stone realizes that something strange is going on when the case gets weaker against Angela, but all of a sudden she wants to cut a deal