Lt. Barker recruits JC and Moreno to get the armored-car robber who killed Eddie and MacNamara.

Lt. Barker recruits JC and Moreno to get the armored-car robber who killed Eddie and MacNamara.

Members of the unit target a modeling agent.

Members of the unit target a modeling agent.

Agents interfere in an undercover operation aimed at a Colombian drug kingpin.

Agents interfere in an undercover operation aimed at a Colombian drug kingpin.

Missing teens prompt a probe of a private hospital's organ-donor program.

Missing teens prompt a probe of a private hospital's organ-donor program.

The detectives go undercover on Wall Street to foil a stock-manipulation scheme.

The detectives go undercover on Wall Street to foil a stock-manipulation scheme.

The unit probes mysterious fires in the garment district.

The unit probes mysterious fires in the garment district.

The detectives discover that the CIA is involved in a money-laundering scheme at a bank in a Cuban neighborhood.

The detectives discover that the CIA is involved in a money-laundering scheme at a bank in a Cuban neighborhood.

A serial killer gives male victims tainted drugs.

A serial killer gives male victims tainted drugs.

Nell's ex husband comes back and ask's Nell for protection from the mob. Nina and J.C. become close.

Nell's ex husband comes back and ask's Nell for protection from the mob. Nina and J.C. become close.

Lt. Barker gets involved in a bank robery. G cathes Nina and J.C. in bed together.

Lt. Barker gets involved in a bank robery. G cathes Nina and J.C. in bed together.

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.

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.

When a woman becomes a fugitive, Nina uses her only resource to help find her, her daughter. Stone's life becomes threatened.

When a woman becomes a fugitive, Nina uses her only resource to help find her, her daughter. Stone's life becomes threatened.

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.

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.