Old passions and jealousies flare when Hunter is forced to work with Novak's ex-husband to solve a series of airport robberies. Novak tries to find an escaped prisoner she once arrested.

Hunter and McCall pose as husband and wife to investigate the murder of a young girl whose death exposes a Soviet plot to relocate secret agents in the United States.

After learning the circumstances leading up to the murder of a notorious Latino crime boss, Hunter and McCall face an ethical dilemma: whether to arrest the killer or let him go free.

Hunter and new partner Molenski investigate a series of rape/murders that revive disturbing memories for Molenski.

The only clue in a series of murders is a trail of police-issued ammunition that leads Hunter and McCall to suspect a colleague as the killer.

Hunter refuses to reveal an informant to a Grand Jury and is sent to jail, as a convicted murderer stalks the only witness against him -- Hunter's informant.

McCall finds her loyalties sharply divided when an important murder case being prosecuted by the Assistant District Attorney, with whom she is in love, is jeopardized by Hunter.

Hunter and McCall investigate the illegal disposal of poisonous gas that kills a young boy.

Hunter and McCall investigate a teenager who accidentally kills a drug dealer and flees with the money, hoping to find the boy before the drug dealer's boss does.

When McCall is raped by a South American diplomat who's immune from prosecution, Hunter turns renegade and follows the man to his homeland.