Riker(1981)

This drama series is a fictionalized retelling of the story of meth dealer-turned-ATF informant Charles Falco, who spent three years inside one of America's most dangerous motorcycle gangs, the Vagos. Although Falco originally took on the assignment to avoid spending 20 years in prison on drug charges, it eventually evolved into a quest for justice for him. “Gangland Undercover” documents the lives of outlaw bikers, who live in a world in which respect is earned through fear. The series is based on Falco's memoir, “Vagos, Mongols, and Outlaws,” and documented historical research of gang rivalries.

Cover Up is an American action/adventure television series that aired for one season on CBS from September 22, 1984 to April 6, 1985. Created by Glen A. Larson, the series stars Jennifer O'Neill, Jon-Erik Hexum, Antony Hamilton, and Richard Anderson.

Ex Scotland Yard detective Millie-Jean Black returns to Kingston to work missing persons; soon finding herself on a quest to save a sister who won’t be saved, to find a boy who can’t be found, to solve a case that will blow her world apart and prove almost as tough to crack as Millie Black.

Gabriel's Fire is an American television series that ran on ABC in the USA in 1990–1991. A revamped version of the series, entitled Pros and Cons, aired briefly the following season.

Seo Jae-won who suffered an unfortunate childhood, becomes an ambitious and driven CEO that chases after success. But when her obsession gets out of hand, she tries to escape from her unhealthy desires but her husband, a designer and college professor, gets swept up in the process.

Luo Xiang, a former narcotics agent, faked his death during an undercover operation. Five years later, he's living under a new name, but needs to pretend to be his old self and once again infiltrate the drug cartel, dealing with his former lover, brothers and enemies, to finally successfully complete the mission and find out who's pulling the strings.

Nikita is a drug-addicted juvenile delinquent who was accused of killing a police officer in cold blood during an attempted robbery of a pharmacy. She is later arrested and sentenced to death by lethal injection, upon which she was secretly drugged by the government, faking her death. Nikita is then "recruited" by a secret government organization and transformed into a highly skilled assassin who cannot be traced.

UC: Undercover is an action-thriller television series that focuses on the secret lives and private demons of an elite Justice Department crime-fighting unit that confronts the country’s deadliest, most untouchable lawbreakers by going undercover to bust them. The series was broadcast from 2001 to 2002. The stories were written by Shane Salerno. James Bond composer David Arnold wrote the main title theme and scored the pilot episode. Salerno said the show would be a "very music driven series." UC: Undercover was a production of NBC Studios in association with Jersey Films, Chasing Time Pictures, Regency Television, and 20th Century Fox Television. Its short but popular run ended when it was canceled by the network. The show developed a passionate following overseas and continues to run on FX International.

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.

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.

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.

Members of a secret society chase immortality by seeking refuge in the bodies of others.

Fastlane is an American action/crime drama series that was broadcast on Fox from September 18, 2002 to April 25, 2003.

Sydney Bristow, an agent who has been tricked to believe she is working for the U.S. government, is actually working for a criminal organization named the Alliance of Twelve. Upon learning this, Sydney becomes a double agent for the real CIA.

Michael Long, an undercover police officer, is shot while investigating a case and left for dead by his assailants. He is rescued by Wilton Knight, a wealthy, dying millionaire and inventor who arranges life-saving surgery, including a new face and a new identity--that of Michael Knight. Michael is then given a special computerized and indestructible car called the Knight Industries Two Thousand (nicknamed KITT), and a mission: apprehend criminals who are beyond the reach of the law. The series depicts Michael's exploits as he and KITT battle the forces of evil on behalf of the Foundation for Law and Government.

A chilling and unflinching look at all sides of a complicated issue, focusing on an African-American Muslim who joins an Islamic sleeper terrorist cell in the United States while working undercover for the FBI.

When one accidental killing leads to another, an ordinary young man finds himself stuck in an endless cat-and-mouse chase with a shrewd detective.

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.

A young agent goes undercover to befriend a drug smuggler's wife. But the closer she gets to her target, the more complicated her mission becomes.

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.