| Saison 1 - épisode 1 | School Ties Williams and Torres try to prevent two people from becoming part of luxury car theft ring. Williams gets a letter from his e-wife stating that she... | |
| Saison 1 - épisode 2 | Pilot Manhattan police detectives J.C. Williams and Eddie Torres are assigned a case dealing with a 17 year old girl who accuses a high school football... | |
| Saison 1 - épisode 3 | Sins of the Father Torres and Williams investigate an ice-cream vendor's murder whose drug dealings ends up in G's school. | |
| Saison 1 - épisode 4 | To Protect and Serve Torres and Williams are assigned to investigate the death of a student who doesn't seem to be ""picture perfect."" Williams deals with child support... | |
| Saison 1 - épisode 5 | Garbage Torres and Williams go undercover to investigate a sanitation worker's murder. Sandra is embarresed J.C. is a police officer. | |
| Saison 1 - épisode 6 | After Shakespeare Torres and Williams deals with a murder and restoring a neighborhood. Eddie's father moves in with him. G lies to his teacher. | |
| Saison 1 - épisode 7 | Tasha When a baby dies, Torres and Williams discover there's more to the story then people say. Torres's sister askes him to investigate their friends... | |
| Saison 1 - épisode 8 | Missing Torres and Williams investigate a missing boy whose mother may know more than she claims. | |
| Saison 1 - épisode 9 | The Friendly Neighborhood Dealer Torres and Williams investigate a drug crime involving a former professional athlete. | |
| Saison 1 - épisode 10 | Mate After a young girl disappears, Torres and Williams go undercover to find her. | |
| Saison 1 - épisode 11 | The Eyewitness Blues Williams protects an eyewitness, while Torres looks for the people who wants to kill her. | |
| Saison 1 - épisode 12 | Blondes Have More Fun Torres and Williams go undercover as drag queens to solve a serial killer case. | |
| Saison 1 - épisode 13 | Los Macheteros Torres is assigned to a case where he has to question his heritage. | |
| Saison 1 - épisode 14 | Private Enemy No. 1 Williams is involed in a case where he ends up facing his past. Eddie's sister becomes involved in the case. | |
| Saison 1 - épisode 15 | The Smoking Section A cigarette company tries to destroy a reverend. Eddie's old girlfriend is being abused. | |
| Saison 1 - épisode 16 | Mama Said Knock You Out Williams and Torres go undercover to try and solve a case where a lethal drug is killing young boxers. G has to decide betwwen two girls. | |
| Saison 1 - épisode 17 | You Get No Respect A rapper is killed and his partner might be behind it all. | |
| Saison 1 - épisode 18 | Innocent Bystander G eyewitnesses his friends murder. | |
| Saison 1 - épisode 19 | CAT Torres and Williams go undercover to try and find out what kind of drug crime two dead students were apart of. | |
| Saison 1 - épisode 20 | All in the Family A rich family are part of an illegal gun-selling ring. | |
| Saison 1 - épisode 21 | Eliminate the Middleman Torres & Williams go unercover on a drug case where Torres's father's best friend is part of it. | |
| Saison 1 - épisode 22 | Olde Thyme Religion An occult group is under investigation after one of their followers is murdered. | |
| Saison 1 - épisode 23 | The Shooter Torres and Williams discover that a two time shooter had a personal plot against five people who supposedly ""set him up."" | |
| Saison 1 - épisode 24 | Manchild G is caught between saving his friend's life or telling his father, a cop. | |
| Saison 1 - épisode 25 | Downtown Girl The death of an attorney turns out to be part of a mafia deal. Williams purposes to Sandy. | |
| Saison 1 - épisode 26 | Catman Comes Back With his conviction overturned, Danny Cort is back on the streets. | |
| Saison 2 - épisode 1 | High on the Hog Now physically recovered, Williams is awaiting approval to return to active duty. Torres and his new partner pose as bikers to solve the double... | |
| Saison 2 - épisode 2 | Tag, You're Dead Williams and Torres investigate the case of a Wall Street bond salesman who claims to have shot two graffiti artists in self-defense. | |
| Saison 2 - épisode 3 | Man's Best Friend A man gets killed by a pit bull which causes Williams and Torres to go into the world of dog betting. | |
| Saison 2 - épisode 4 | Brotherhood Williams poses as a freshman to investigate a racially motivated killing on a college campus. | |
| Saison 2 - épisode 5 | Digital Underground Lt. Cooper's daughter ends up missing because of a pedophile she met through email. | |
| Saison 2 - épisode 6 | Buster and Claudia A string of robberies leads to an ex-con and his girlfriend. Torres tries to settle a dispute between his father and a mobster. | |
| Saison 2 - épisode 7 | Student Affairs Williams and Torres pose as a substitute history teacher and a janitor at the high school where a crime was committed. | |
| Saison 2 - épisode 8 | The Highest Bidder Moreno poses as a nurse. to solve a newborn's abduction. | |
| Saison 2 - épisode 9 | Young, Beautiful and Dead Williams poses as a model to investigate the face-slashing of a teen cover girl. | |
| Saison 2 - épisode 10 | Color Lines A serial bomber threatens Williams and Torres. | |
| Saison 2 - épisode 11 | The Finals Danny Cort returns with an agenda for Williams to lose his job and his best friend--and to ""smoke [the officer's] little kid."" | |
| Saison 2 - épisode 12 | Internal Affairs Williams is investigated by the internal affairs division for Danny Cort's death (or murder?). | |
| Saison 2 - épisode 13 | Bad Girls Moreno poses as a prostitute to try to catch a serial killer who Williams wants G to live with him. | |
| Saison 2 - épisode 14 | A Time to Kill After being freed, a policeman's murderer is killed--and the cop's partner is under investigation. Meanwhile, the murderer's girlfriend plots... | |
| Saison 2 - épisode 15 | Bad Blood Williams and Torres investigate the murder of a free-lance writer. Moreno gets a visit by her missing husband. | |
| Saison 2 - épisode 16 | Fire Show Moreno poses as a firefighter in order to find out who's responsible for a female firefighter's death. | |
| Saison 2 - épisode 17 | Toy Soldiers Three youths, who were brought from Rwanda to act as mob hit men, are befriended by Father Torres. Moreno gets an inheritance; Williams disagrees... | |
| Saison 2 - épisode 18 | Sympathy for the Devil When three youths are charged with shooting a couple, one of them insists that, while they robbed the couple, someone else fired the gun. | |
| Saison 2 - épisode 19 | Checkmate A hit man's widow wants to become a soldier in the mob and poses as a police officer to kill a fellow crook in Williams's and Torres's precinct. | |
| Saison 2 - épisode 20 | Unis Lt. Cooper sends two patrol officers to infiltrate a group of corrupt cops When neighborhood dealers starts disappearing. | |
| Saison 2 - épisode 21 | The Reckoning Williams poses as a member of a militant religious group engaged in an ongoing conflict with a religious sect. Torres's father receives devastating... | |
| Saison 2 - épisode 22 | The Enforcers Williams investigate the murder of his son's tutor. | |
| Saison 2 - épisode 23 | Andre's Choice A fight promoter's death leads to a case involving blackmail, murder, and an ex-con whom Williams has helped. | |
| Saison 2 - épisode 24 | No Greater Love Torres believes the the man who confesses to a killing is taking the blame for his younger brother, who's just received a basketball scholarship to... | |
| Saison 2 - épisode 25 | Deep Cover (1) Torres tries to gain the confidence of a gun ring's leader. Williams pretends to be a Jamaican who's prepared to place a substantial firearms order. | |
| Saison 2 - épisode 26 | If This World Were Mine (2) A gun-ring leader seeks revenge on Torres. | |
| Saison 3 - épisode 1 | A Time of Faith (1) Harlem churches are targets of bombings. Eddie tries to help Nina recover from her shot wound. Williams has issues with new comer Det. McNamara. G's... | |
| Saison 3 - épisode 2 | A Time of Faith (2) Williams discover that Rev. Harris may be part of the bombings. Nina moves in with Eddie. | |
| Saison 3 - épisode 3 | Tough Love Williams befriends a woman whose boyfriend is a leader of a gang that robs apartments. Eddie asks Nina not to go back to work. | |
| Saison 3 - épisode 4 | Blue Boy A recently released child molester is a suspect of a rape of an eleven year old girl. G is in trouble at school. | |
| Saison 3 - épisode 5 | Rules of Engagement Nina and McNamara work together on a case where two robbers are murdered. Nina freezes in battle and decides to turn in her gun. G hangs out with... | |
| Saison 3 - épisode 6 | Kill the Noise A war happens between east coast and west coast rappers when a california rapper is shot. | |
| Saison 3 - épisode 7 | Smack Is Back Torres's father dies of a drug over dose and Torres believes that it was suicide. Williams tries to get custody of G. | |
| Saison 3 - épisode 8 | Don't Blink Nina's new undercover case questions her future as a cop. | |
| Saison 3 - épisode 9 | Without Mercy Toress goes undercover at an AIDS clinic to solve a murder case of a bisexual man. Cooper and Captain O'Bryne start to become closer. | |
| Saison 3 - épisode 10 | Going Platinum Williams goes undercover as a security guard. McNamara's discovers more of his father's case. Captain O'Bryne confesses his love for Cooper. | |
| Saison 3 - épisode 11 | Brown Like Me Torres and Nina become involved with two feuding Latino gangs. | |
| Saison 3 - épisode 12 | The Reaper Lt. Cooper is taken hostage in her office by a man threatening to blow up the precinct if his son is not reprieved from a death-row sentence. Nina... | |
| Saison 3 - épisode 13 | Fade Out A thirteen-year-old boy has a videotape of a murder. Torres and Williams try to protect him; The boy's mother turns out to be Williams's old... | |
| Saison 3 - épisode 14 | The Solomon Papers Feds may be part of a drug case and McNamara might lose it all to prove it. Cooper and her husband tell their kids about their separation. | |
| Saison 3 - épisode 15 | School's Out Nina's daughter (whom she gave up for adoption) has been kidnapped and held for ransom. | |
| Saison 3 - épisode 16 | Outrage The detectives have to prove that a Gulf War veteran has stolen missles. Williams meets with G's french teacher about G's crush on her. | |
| Saison 3 - épisode 17 | The Promised Land Williams discover evidence relating to Martin Luther King Jr's murder. | |
| Saison 3 - épisode 18 | Descell Nina and McNamara go undercover to find out who tried to kill an executive. Williams and Natasha get close. | |
| Saison 3 - épisode 19 | Hubris A female bounty hunter uses Williams to help find a fugitive in protective custody. Nina and McNamara suspect a wife a recently deceased cop.... | |
| Saison 3 - épisode 20 | The Unthinkable The detectives suspect a mother of being involved in a carjacking involving her two children. Nina deals with her custody battle for Melissa. | |
| Saison 3 - épisode 21 | Vendetta McNamara goes undercover involving a Chinese Mafia that has a link with his father's death. Torres asks his sister for money to buy an engagement... | |
| Saison 3 - épisode 22 | Is It a Crime? Williams investigate a case where a girl feel down and elevator shaft in her building. Torres goes shopping for Nina's engagement ring. | |
| Saison 3 - épisode 23 | No Place Like Hell Willias go undercover at a prison to find evidence that will catch a drug lord. William's new friend in prison becomes involved in a murder. Torres... | |
| Saison 3 - épisode 24 | The Last Hurrah The detectives go after a bank robbery ring. Torres and Nina get married. | |
| Saison 4 - épisode 1 | Change Change Change Lt. Barker recruits JC and Moreno to get the armored-car robber who killed Eddie and MacNamara. | |
| Saison 4 - épisode 2 | Drop-Dead Gorgeous Members of the unit target a modeling agent. | |
| Saison 4 - épisode 3 | Pipeline Agents interfere in an undercover operation aimed at a Colombian drug kingpin. | |
| Saison 4 - épisode 4 | Spare Parts Missing teens prompt a probe of a private hospital's organ-donor program. | |
| Saison 4 - épisode 5 | Mob Street The detectives go undercover on Wall Street to foil a stock-manipulation scheme. | |
| Saison 4 - épisode 6 | Rat Trap The unit probes mysterious fires in the garment district. | |
| Saison 4 - épisode 7 | Quid Pro Quo The detectives discover that the CIA is involved in a money-laundering scheme at a bank in a Cuban neighborhood. | |
| Saison 4 - épisode 8 | Capital Punishment A serial killer gives male victims tainted drugs. | |
| Saison 4 - épisode 9 | The Unusual Suspects Nell's ex husband comes back and ask's Nell for protection from the mob. Nina and J.C. become close. | |
| Saison 4 - épisode 10 | Sign o' the Times Lt. Barker gets involved in a bank robery. G cathes Nina and J.C. in bed together. | |
| Saison 4 - épisode 11 | Going Native Nina and Stone go undercover as owners of a garbage company. Nina and J.C. deal with their emotions of sleeping together and G catching them. | |
| Saison 4 - épisode 12 | The Troubles When a woman becomes a fugitive, Nina uses her only resource to help find her, her daughter. Stone's life becomes threatened. | |
| Saison 4 - épisode 13 | Catharsis |


