The Investigators

Mannix is an American television detective series that ran from 1967 through 1975 on CBS. Created by Richard Levinson and William Link and developed by executive producer Bruce Geller, the title character, Joe Mannix, is a private investigator. He is played by Mike Connors. Mannix was the last series produced by Desilu Productions.

Private detective Mike Hammer hunts down criminals on the mean streets of New York City.

Danger Man is a British television series which was broadcast between 1960 and 1962, and again between 1964 and 1968. The series featured Patrick McGoohan as secret agent John Drake. Ralph Smart created the programme and wrote many of the scripts. Danger Man was financed by Lew Grade's ITC Entertainment.

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.

Wandering in and out of he underbelly of Los Angeles, where criminals roam free under the veil of night or hide in the shadows of day, is routine for Lieutenant Carter Shaw and his special undercover task force. This team understands that to bring down a criminal, one must first get on their level.

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.

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.

Robert McCall is a former agent of a secret government agency who is now running his own private crime fighting operation where he fashions himself as "The Equalizer." It is a service for victims of the system who have exhausted all possible means of seeking justice and have nowhere to go. McCall promises to even out the odds for them.

New York Undercover is an American police drama The series stars Detective J.C. Williams and Detective Eddie Torres, two undercover detectives in New York City's Fourth Precinct who were assigned to investigate various crimes and gang-related cases.

The Hardy Boys/Nancy Drew Mysteries is a television series which aired for three seasons on ABC. The series starred Parker Stevenson and Shaun Cassidy as amateur sleuth brothers Frank and Joe Hardy, respectively, and Pamela Sue Martin as girl detective Nancy Drew. The Hardy Boys/Nancy Drew Mysteries was unusual in that it often dealt with the characters individually, in an almost anthological style. That is, some episodes featured only the Hardy Boys and others only Nancy Drew.

A relentless LAPD cop becomes obsessed with taking down the master thief behind a string of daring heists — and only one can come out on top.

A bald, lollipop sucking police detective with a fiery righteous attitude battles crime in New York City.