Now physically recovered, Williams is awaiting approval to return to active duty. Torres and his new partner pose as bikers to solve the double homicide of an informant and her little girl.

Williams and Torres investigate the case of a Wall Street bond salesman who claims to have shot two graffiti artists in self-defense.

A man gets killed by a pit bull which causes Williams and Torres to go into the world of dog betting.

Williams poses as a freshman to investigate a racially motivated killing on a college campus.

Lt. Cooper's daughter ends up missing because of a pedophile she met through email.

A string of robberies leads to an ex-con and his girlfriend. Torres tries to settle a dispute between his father and a mobster.

Williams and Torres pose as a substitute history teacher and a janitor at the high school where a crime was committed.

Moreno poses as a nurse. to solve a newborn's abduction.

Williams poses as a model to investigate the face-slashing of a teen cover girl.

A serial bomber threatens Williams and Torres.

Danny Cort returns with an agenda for Williams to lose his job and his best friend--and to ""smoke [the officer's] little kid.""

Williams is investigated by the internal affairs division for Danny Cort's death (or murder?).

Moreno poses as a prostitute to try to catch a serial killer who Williams wants G to live with him.

After being freed, a policeman's murderer is killed--and the cop's partner is under investigation. Meanwhile, the murderer's girlfriend plots revenge on the gang leader who ordered the officer's death.

Williams and Torres investigate the murder of a free-lance writer. Moreno gets a visit by her missing husband.

Moreno poses as a firefighter in order to find out who's responsible for a female firefighter's death.

When three youths are charged with shooting a couple, one of them insists that, while they robbed the couple, someone else fired the gun.

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.

Lt. Cooper sends two patrol officers to infiltrate a group of corrupt cops When neighborhood dealers starts disappearing.

Williams poses as a member of a militant religious group engaged in an ongoing conflict with a religious sect. Torres's father receives devastating news.

Williams investigate the murder of his son's tutor.

A fight promoter's death leads to a case involving blackmail, murder, and an ex-con whom Williams has helped.

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 college.

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.

A gun-ring leader seeks revenge on Torres.