Gang Related
Overview:
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.
Recommendations for you

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

Wiseguy
Vinnie Terranova does time in a New Jersey penitentiary to set up his undercover role as an agent for the OCB (Organized Crime Bureau) of the United States. His roots in a traditional Italian city neighborhood form the underlying dramatic base throughout the series, bringing him into conflict with his conservative mother and other family members while acting undercover as syndicate enforcer.

Police Story
Detective Cheng is commissioned by Interpol to destroy the Empire of Chaiba, a worldwide criminal organization based in Southeast Asia. He initiates an undercover operation to infiltrate the organization.

Major Crimes
Major Crimes explores how the American justice system approaches the art of the deals as law enforcement officers and prosecutors work together to score a conviction. Los Angeles Police Captain Sharon Raydor heads up a special squad within the LAPD that deals with high-profile or particularly sensitive crimes.

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

Dragnet
Police Detective Sgt. Joe Friday and his partners investigate crimes in Los Angeles.

The Mod Squad
The Mod Squad was the enormously successful groundbreaking "hippie" undercover cop show that ran on ABC from September 24, 1968, until August 23, 1973. It starred Michael Cole as Pete Cochren, Peggy Lipton as Julie Barnes, Clarence Williams III as Linc Hayes, and Tige Andrews as Captain Adam Greer. The executive producers of the series were Aaron Spelling and Danny Thomas. The iconic counter-culture police series earned six Emmy nominations, four Golden Globe nominations plus one win for Peggy Lipton, one Directors Guild of America award, and four Logies. In 1997 the episode "Mother of Sorrow" was ranked #95 on TV Guide's 100 Greatest Episodes of All Time.

NCIS: Los Angeles
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.

Adam-12
Adam-12 is a television police drama that followed two police officers of the Los Angeles Police Department, Pete Malloy and Jim Reed, as they patrolled the streets of Los Angeles in their patrol unit, 1-Adam-12.

T. J. Hooker
Sergeant Thomas Jefferson Hooker is a tough-as-nails veteran police officer with the LCPD who turns his back on a gold badge and goes back to patrolling the streets and training recruits. Along with his young partners in blue, Hooker take on Lake City's toughest criminals.

The Rockford Files
Cranky but likable L.A. PI Jim Rockford pulls no punches (but takes plenty of them). An ex-con sent to the slammer for a crime he didn't commit, Rockford takes on cases others don't want, aided by his tough old man, his lawyer girlfriend and some shady associates from his past.

Starsky & Hutch
Streetwise Detective David Starsky partners up with a more intellectual partner, Kenneth 'Hutch' Hutchinson, to protect citizens and patrol the streets of Bay City.

Dragnet
Follows the cases of a dedicated Los Angeles police detective, Sergeant Joe Friday, and his partners. The show takes its name from the police term "dragnet", meaning a system of coordinated measures for apprehending criminals or suspects.

Crime Story
The hard-boiled saga of hair-trigger cop Lieutenant Mike Torello and his obsessive pursuit of ruthless gangster Ray Luca.

True Justice
Elijah Kane leads a hardcore undercover team of Seattle based cops who take on the local criminal element with a high-octane style of enforcement.

S.W.A.T.
S.W.A.T. is an American action/crime drama series about the adventures of a Special Weapons And Tactics team operating in an unidentified California city. A spin-off of The Rookies, the series aired on ABC from February 1975 to April 1976. Like The Rookies, S.W.A.T. was produced by Aaron Spelling and Leonard Goldberg.

Cannon
Cannon is a CBS detective television series produced by Quinn Martin which aired from March 26, 1971 to March 3, 1976. The primary protagonist is the title character, private detective Frank Cannon, played by William Conrad. He also appeared on two episodes of Barnaby Jones. Cannon is the first Quinn Martin-produced series to be aired on a network other than ABC. A "revival" television film, The Return of Frank Cannon, was aired on November 1, 1980. In total, there were 124 episodes.

Almost Paradise
A former DEA agent forced into early retirement runs a gift shop in in the Philippines. Despite his best efforts to begin a tranquil new life, he’s pulled back into a world of dangerous people and deadly situations, either through his friends in the local police department or running into people from his old life. And the problem is: he likes it.

Nash Bridges
Fun-loving San Francisco Police Department investigator Nash Bridges is part of the elite Special Investigations Unit. He tackles crime using his keen sense of humor and charm. Joe Dominguez comes out of retirement to become Bridges' wisecracking yet more rule-abiding partner.

The Listener
Toby Logan is a highly skilled paramedic with a secret – he can read minds. Toby never really knew his parents and grew up in foster care, this coupled with his secret, which he shares with no one, has made him a bit of a loner. Until now, Toby has kept his ability hidden, exploring its possibilities only with his long time mentor and confidante Dr. Ray Mercer.

