Wiseguy (1987)

Unorthodox but effective FBI veteran agent Charles Barker takes on a rookie partner, Ellis Dove. Barker trains Dove in a hard-edged, psychologically driven approach towards undercover work, where a moment's hesitation can lead to death. As the job takes its toll on Dove, an Internal Affairs team tries to enlist the rookie as a double-agent in the bureau's investigation of his partner.

Cordell Walker, a widower and father of two with his own moral code, returns home to Austin after being undercover for two years, only to discover there's harder work to be done at home.

A young CIA operative, Annie Walker, is mysteriously summoned to headquarters for duty as a field operative. While Annie believes she's been promoted for her exceptional linguistic skills, there may be something or someone from her past that her CIA bosses are really after. Auggie Anderson is a CIA military intelligence agent who was blinded while on assignment and is Annie's guide in this world of bureaucracy, excitement and intrigue.

A high-stakes thriller about Elena Federova, a very recently captured international arms dealer and brilliant criminal mastermind who even in captivity orchestrates a number of coordinated bank heists, and Val Turner, the principled, relentless and socially outcast FBI agent who will stop at nothing to foil her ambitious plan.

Sergeant “Pepper"” Anderson, an undercover cop for the Criminal Conspiracy Unit of the Los Angeles Police Department, poses undercover from mob girl to prostitute.

Jack Regan, an unethical officer of the Flying Squad, uses unorthodox methods to pursue criminals with the help of his partner, George Carter.

The FBI's team of Cyber Crime Investigators, headed by Special Agent Avery Ryan, works to solve cases involving the dark-net. Avery, a Special Agent in Charge and esteemed Cyber-Psychologist heads up a team, including Senior Special Agent Elijah Mundo, tasked with solving murders, cyber-theft, hacking, sex offences, and blackmail.

The series follows the ventures of a Missing Persons Unit of the FBI in New York City.

Every villain has a noble cause, and every hero has a dark side. Detective Ryan Lopez is a rising star in Los Angeles' elite Gang Task Force. What the world doesn't know is that long before Ryan became a cop, he pledged allegiance to a different band of brothers – a powerful Latino gang called Los Angelicos. When Ryan's best friend and police partner is senselessly killed by a notorious gang member, Ryan teams up with longtime Task Force member Cassius Green who has been at the forefront of the city's war on organized crime. In this war between law enforcement and gangs, the series explores how only people who really know the streets can win the battle on the streets.

The exploits of the Los Angeles–based Office of Special Projects (OSP), an elite division of the Naval Criminal Investigative Service that specializes in undercover assignments.