Season 4

01 Change Change Change Episode 18th January 1998 Lt. Barker recruits JC and Moreno to get the armored-car robber who killed Eddie and MacNamara. 02 Drop-Dead Gorgeous Episode 215th January 1998 Members of the unit target a modeling agent. 03 Pipeline Episode 322nd January 1998 Agents interfere in an undercover operation aimed at a Colombian drug kingpin. 04 Spare Parts Episode 429th January 1998 Missing teens prompt a probe of a private hospital's organ-donor program. 05 Mob Street Episode 512th February 1998 The detectives go undercover on Wall Street to foil a stock-manipulation scheme. 06 Rat Trap Episode 612th March 1998 The unit probes mysterious fires in the garment district. 07 Quid Pro Quo Episode 719th March 1998 The detectives discover that the CIA is involved in a money-laundering scheme at a bank in a Cuban neighborhood. 08 Capital Punishment Episode 826th March 1998 A serial killer gives male victims tainted drugs. 09 The Unusual Suspects Episode 928th May 1998 Nell's ex husband comes back and ask's Nell for protection from the mob. Nina and J.C. become close. 10 Sign o' the Times Episode 104th June 1998 Lt. Barker gets involved in a bank robery. G cathes Nina and J.C. in bed together. 11 Going Native Episode 1111th June 1998 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. 12 The Troubles Episode 1225th June 1998 When a woman becomes a fugitive, Nina uses her only resource to help find her, her daughter. Stone's life becomes threatened. 13 Catharsis Episode 1311th February 1999 A radical group kidnaps a child for bargaining purposes; Moreno gets even for the death of her husband and her partner when she meets Jordan in prison.