Die vier Spezialisten

21 Jump Street revolves around a group of young cops who would use their youthful appearance to go undercover and solve crimes involving teenagers and young adults.

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.

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.

A police department, lead by an older, experienced detective solve crimes together.

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

An elite team of FBI profilers analyze the country's most twisted criminal minds, anticipating their next moves before they strike again. The Behavioral Analysis Unit's most experienced agent is David Rossi, a founding member of the BAU who returns to help the team solve new cases.

Polizeiruf 110 is a long-running German language detective television series. The first episode was broadcast 27 June 1971 in the German Democratic Republic, and after the dissolution of Fernsehen der DDR the series was picked up by ARD. It was originally created as a counterpart to the West German series Tatort, and quickly became a public favorite.

Jake and the Fatman is a television crime drama starring William Conrad as prosecutor J. L. "Fatman" McCabe and Joe Penny as investigator Jake Styles. The series ran on CBS for five seasons from 1987 to 1992. Diagnosis: Murder was a spin-off of this series.

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.

Working for the FBI's Deep Cover Operations division, Martin Odum can transform himself into a different person -- whether it's an assignment as a Serbian extremist, a corrupt Chicago police officer, a British special forces colonel, or a legendary computer hacker. But when he learns that his life, itself, may be a lie, he faces the demands of his job and a desire to solve the mystery of his identity. And given the choice between the two, Odum doesn't always make the right decision.

Stu Bailey and Jeff Spencer are the wisecracking, womanizing private-detective heroes of this Warner Brothers drama. They work out of an office located at 77 Sunset Strip in Los Angeles, California, right next door to a snazzy restaurant where Kookie works as a valet. The finger-snapping, slang-talking Kookie occasionally helps Stu and Jeff with their cases, and eventually becomes a full-fledged member of the detective agency. Rex Randolph and J.R. Hale also join the firm, and Suzanne is their leggy secretary.

Crime drama set in the 1960s about an old-school detective trying to come to terms with a time when the lines between the police and criminals have become blurred.