21 Jump Street

Somewhere in Southern California, in a drug raid run by the US government, a beachfront property was seized and turned into a residence for undercover cops. They are all top agents of the DEA, FBI, and Customs and they are living in this house unofficially known as "Graceland". "Graceland" is a place full of secrets, and bad, good, and blurred moments too. The only idyllic thing is its outside look, but the lives of its residents are nothing like it. The lies which are in the base of their undercover work, are formed a web of lies that pervades everything. Coming of a new graduating at the top of his class, FBI rookie, Mike Warren, could make the life of a legendary FBI agent Paul Briggs and the others, more complicated or it could reveal the truth. It is based upon actual events.

Dark Blue was an action/drama television series which premiered on TNT on July 15, 2009, at 10 pm. It ended its run on September 15, 2010. The series is set in Los Angeles, California. It revolves around Carter Shaw, the leader of an undercover unit. He is an officer who has dedicated his life to taking down the worst criminals in L.A., and this dedication has cost him his marriage. His team includes Ty Curtis, a newlywed who struggles between his job and his new life; Dean Bendis, an officer who is so deep in his undercover role that his team is no longer sure which side he is on; and Jaimie Allen, a green patrol cop recruited into the undercover unit because of her dark past and criminal skills.

Perhaps their strikingly different personalities make the relationship between detective Jane Rizzoli and medical examiner Maura Isles so effective. Jane, the only female cop in Boston's homicide division, is tough, relentless and rarely lets her guard down, while the impeccably dressed Maura displays a sometimes icy temperament — she is, after all, more comfortable among the dead than the living. Together, the best friends have forged a quirky and supportive relationship; they drop the protective shield in each other's company, and combine their expertise to solve Boston's most complex cases.

The daily lives of the men and women at Sun Hill Police Station as they fight crime on the streets of London. From bomb threats to armed robbery and drug raids to the routine demands of policing this ground-breaking series focuses as much on crime as it does on the personal lives of its characters.

After surrendering to Bogotá police, an ex-guerrilla avoids prison by working undercover to investigate a ruthless enforcer of government corruption.

Set during the Cold War period in the 1980s, The Americans is the story of Elizabeth and Philip Jennings, two Soviet KGB officers posing as an American married couple in the suburbs of Washington D.C. and their neighbor, Stan Beeman, an FBI Counterintelligence agent.

The story of the Miami Police Department's vice squad and its efforts to end drug trafficking and prostitution, centered on the unlikely partnership of Sonny Crockett and Ricardo Tubbs - who first meet when Tubbs is undercover in a drug cartel.

Person of Interest follows former CIA paramilitary operative, John Reese, who is presumed dead and teams up with reclusive billionaire Finch to prevent violent crimes in New York City by initiating their own type of justice. With the special training that Reese has had in Covert Operations and Finch's genius software inventing mind, the two are a perfect match for the job that they have to complete. With the help of surveillance equipment, they work "outside the law" and get the right criminal behind bars. 

Told from the points of view of both the Baltimore homicide and narcotics detectives and their targets, the series captures a universe in which the national war on drugs has become a permanent, self-sustaining bureaucracy, and distinctions between good and evil are routinely obliterated.

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.

A single-camera ensemble comedy following the lives of an eclectic group of detectives in a New York precinct, including one slacker who is forced to shape up when he gets a new boss.

A riveting police drama about the men and women of the Chicago Police Department's District 21 who put it all on the line to serve and protect their community. District 21 is made up of two distinctly different groups: the uniformed cops who patrol the beat and go head-to-head with the city's street crimes and the Intelligence Unit that combats the city's major offenses - organized crime, drug trafficking, high profile murders and beyond.

Follow the everyday work of a fictional police station on the Kiez of Hamburg.

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.

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.

Hill Street Blues is an American serial police drama . Chronicling the lives of the staff of a single police precinct in an unnamed American city, the show received critical acclaim and its production innovations influenced many subsequent dramatic television series produced in North America.

NYPD Blue is an American television police drama set in New York City, exploring the internal and external struggles of the fictional 15th precinct of Manhattan. Each episode typically intertwined several plots involving an ensemble cast.

The exploits of a group of men and women who serve the City of New York as police officers, firemen, and paramedics, all working the same fictional 55th precinct during the 3pm to 11pm shift - the 'Third Watch'.

Ambitious young cops try to prove themselves in their high-stakes careers, in which the smallest mistake can have deadly consequences. At the core of the close-knit group is perfectionist Andy McNally, whose father was a homicide detective before he burned out on the job. The series follows Andy and her four colleagues -- Dov Epstein, Gail Peck, Traci Nash and Chris Diaz -- as they experience the trials, triumphs and tribulations of police work, as well as its effect on their personal lives.

Jarod is a Pretender – a genius whose exceptional intelligence allows him to assume various identities at will, be it doctor, test pilot or lawyer. Taken from his parents at an early age, Jarod was brought up in the Centre, a think-tank facility where he believed his computer-like mind was being used to benefit manking. But when he learned the simulations he solved were being sold to the highest-bidder no matter what their intent, Jarod escaped. Now on the run, Jarod embarks on a search for his true identity while also attempting to balance out any wrong his simulations have caused by helping people who are as powerless as he once was.