Happily Ever After: Alan Ralston is shot to death and his wife wounded inside their building parking garage. Police eventually piece together that the crime was not a random act of violence. (S1 Ep5)
The Reaper's Helper: Construction worker Bobby Holland is found shot to death in his apartment. Logan and Greevey investigate and soon connect the death to others in the area. (S1 Ep3)
Out of the Half-Light: A teenaged African-American girl claims to have been raped by white police officers. Police and prosecutors struggle to get the truth. (S1 Ep11)
Prisoner of Love: The suicide of a controversial artist, who died while engaging in auto-erotic strangulation, leads Detectives Greevey and Logan into the city's bondage/S&M subculture. (S1 Ep10)
Subterranean Homeboy Blues: A white woman shoots two black men in a crowded subway. The shooting appears to be self-defence, but further investigation shows that the motive may be revenge. (S1 Ep2)
Prescription for Death: A woman dies after a visit to a hospital emergency room and her father, a former army medic, accuses the hospital of negligence and demands a police investigation. (S1 Ep1)
Indifference: Greevey and Logan discover that a child and mother are being abused by a drug-addicted psychotherapist father. The detectives investigate his checkered past. (S1 Ep9)
By Hooker, By Crook: The discovery of an unconscious man in Central Park leads Greevey and Logan to his previous activity and locale-with an escort named Jolene in a hotel room. (S1 Ep7)
Everybody's Favourite Bagman: When a city councilman is killed, Logan and Greevey trace the crime to mob figure Tony Scalisi. They cut a deal and he leads them to corrupt city officials. (S1 Ep6)
Happily Ever After: Alan Ralston is shot to death and his wife wounded inside their building parking garage. Police eventually piece together that the crime was not a random act of violence. (S1 Ep5)
Kiss the Girls and Make Them Die: Paige Bartlett is found beaten in her apartment and dies in hospital. Greevey and Logan investigate and learn that her boyfriend has a history of violence. (S1 Ep4)
The Reaper's Helper: Construction worker Bobby Holland is found shot to death in his apartment. Logan and Greevey investigate and soon connect the death to others in the area. (S1 Ep3)
Subterranean Homeboy Blues: A white woman shoots two black men in a crowded subway. The shooting appears to be self-defence, but further investigation shows that the motive may be revenge. (S1 Ep2)
Prescription for Death: A woman dies after a visit to a hospital emergency room and her father, a former army medic, accuses the hospital of negligence and demands a police investigation. (S1 Ep1)
Doubles: An investigation reveals a strange plot when a professional tennis player's wrist is broken after she finishes a practice session with a former rival. (S4 Ep21)
Nurture: Briscoe and Logan's investigation into the disappearance of a girl whose foster mother treated her as a slave leads the detectives to an eccentric former teacher. (S4 Ep20)
Sanctuary: Racial tensions explode into violence after a middle-aged Jewish man leaves the scene of an accident involving a 12-year-old African-American boy. (S4 Ep19)
Kids: Briscoe finds it difficult to arrest the son of his former partner when the teen is charged with the murder of a boy in a drive-by shooting. (S4 Ep15)
Breeder: Briscoe and Logan help a young mother who claims her newborn baby was stolen from her after she gave birth in a taxi on the way to the hospital. (S4 Ep13)
Doubles: An investigation reveals a strange plot when a professional tennis player's wrist is broken after she finishes a practice session with a former rival. (S4 Ep21)
Nurture: Briscoe and Logan's investigation into the disappearance of a girl whose foster mother treated her as a slave leads the detectives to an eccentric former teacher. (S4 Ep20)
Snatched: Briscoe and Logan investigate when the son of Schiff's friend is kidnapped and isn't returned after the kidnappers' ransom demands are met. (S4 Ep12)
Golden Years: Stone explores senior citizens' rights during the trial of a woman charged with neglect when her emaciated grandmother is discovered dead. (S4 Ep11)
Sanctuary: Racial tensions explode into violence after a middle-aged Jewish man leaves the scene of an accident involving a 12-year-old African-American boy. (S4 Ep19)
Born Bad: A battle between nature and nurture ensues when Briscoe and Logan investigate the death of a boy killed by his foster brother, who has an extra Y chromosome. (S4 Ep9)
Kids: Briscoe finds it difficult to arrest the son of his former partner when the teen is charged with the murder of a boy in a drive-by shooting. (S4 Ep15)
Born Bad: A battle between nature and nurture ensues when Briscoe and Logan investigate the death of a boy killed by his foster brother, who has an extra Y chromosome. (S4 Ep9)
Benevolence: Logan and Briscoe begin their investigation into the death of a hearing-impaired young woman by questioning her two most recent boyfriends. (S3 Ep22)
Manhood: The statement of a drug dealer who survived a shoot-out leads Logan and Briscoe to suspect a cop died because he was gay, and his fellow officers were reluctant to back him up. (S3 Ep21)
Securitate: When a Romanian immigrant kills, his lawyer announces his client will plead not guilty due to cultural insanity, claiming he had been conditioned to violence in his homeland. (S3 Ep20)
Virus: 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. (S3 Ep19)