A detective goes undercover and poses as a criminal to try to discover the reasons behind the murder of a night club owner.
An undercover cop finds himself on the wrong side of the law when the mob discovers his true identity.
A federal agent infiltrates a crime syndicate.
An undercover officer tracks waterfront corruption from California to New Orleans and back.
A tough cop meets his match when he has to guard a gangster's widow on a tense train ride.
Leader of the Celestial Devil Gang Mo Fu ends an underling to infiltrate the house of code expert Cheung Yuet-ting in pursuit of the Mafia's secret intelligence. The unyielding man is killed, and the Mafia is framed for the crime. Cheung's instrumental role in the Mafia is succeeded by his daughter Oi-lan, who leads both gangs onto a deadly chase. Just then, Oi-lan's bosom friend Chan Yu-lam emerges from years of oblivion as a Mafia member and offers the wanted woman protection and assistance in retrieving the late father's cache. Mo's underling Lau Kei-fung is assigned the task of playing the confidence game in the Cheung household, preempting Oi-lan from accessing the classified information and abducting both Oi-lan and Chan before the Mafia can reach the key witness. Acting on a tip-off, the police raid the apartment and arrest both gangs. Chan, the undercover police officer, gains both Oi-lan's trust and affection. (Synopsis based on audiovisual materials)
Celebrity Sadora is seriously wounded in an air crash. Police commissioner Suen and subordinate Ko Cheung find out Sadora was under duress from the Black Dragon Gang to collude with the criminals who had held his daughter hostage. When Ko, assuming Sadora's identity to safeguard his life, is abducted by the gang, Suen turns to 'Black Musketeer' Muk Lan-fa. By blatantly refusing to cooperate with the authorities, Muk escapes the surveillance of both the police and the gang. Acting alone, she scouts the location of the lair but ends up being imprisoned in the same cell with Ko. The captives use every trick in the book to escape. An undaunted Muk returns to infiltrate the den, while her sister Sau-chen, Suen and Ko are lying in wait. The hostages are released and the gang wiped out in a battle fiercely fought. (Synopsis based on visual audiomaterials)
U.S. Secret Service agent Peter Novak goes undercover with Scotland Yard officer Thompson to halt a murderous gang of counterfeiters known as the Golden Goose. Although Peter is unsure about John's loyalties, the two infiltrate the gang and win the trust of thug Nick "The Owl" Harrison before enduring a series of double-crosses.
Hong Kong superstar Jimmy "One Arm Boxer" Wang Yu stars as the Bamboo blade, China's top swordsman. His services are rendered by the Imperial treasury who want him to infiltrate a powerful gang of Highwaymen and get back the stolen silver bullion. After numerous deadly encounters the gang are beaten by the bamboo sword and only the gang leader remains, however he is a lot tougher than was originally bargained for.
An undercover cop infiltrates a gang of smugglers to save the women he loves.
In order to infiltrate a gang of drug smugglers, a cop is sent undercover to participate in a drag-queen beauty contest aboard a cruise ship.
Cliff works as a narcotics investigator for the police and infiltrate a mafia gang. Soon it turns out that Cliff has bigger plans than just to bust bad guys.
Tracy Fleming is a widowed police officer, with a young son, who has risen to the role of plainclothes operative. After six women have been raped and killed, Fleming agrees to go undercover in an effort to make herself a target for the killer. The climax places her in a life-and-death struggle with the killer.
When the godson of San Francisco's crime lord asks permission to leave "the business," Don Antonio agrees, but reluctantly. Such behavior by either one is a violation of the code, and a bloody mob war breaks out. It is only through the strong support of his family connections in Sicily that Don Antonio is able to survive the mêlée and come out on top. Aghast at the situation he has caused, the godson becomes his leader's "consigliere," or Counselor at Crime.
法兰克是一个年轻而富有理想的警察，他从巡警开始做起，后来成为卧底警察，虽然他的破案率很高，但他不愿意象其他警察那样收受贿赂，这使他显得和其他人格格不入。这种做法也使他身陷危机，因为他的同事们都与他为敌，且不时地陷害他。当检察组开始调查警局内部的贪污内幕时，他又出面作证，因此更陷入危险之中……
Get Christie Love! is a 1974 made-for-television film starring Teresa Graves as an undercover female police detective who is determined to overthrow a drug ring. This film is based on Dorothy Uhnak's crime-thriller novel, The Ledger.
After wrongly doing time in prison for murder, a man seeks revenge on a racist law enforcement system and the detective who framed him.
Fred and Tony are members of an elite 'special squad' of police in Rome, Italy who are licensed-to-kill, undercover cops and who love to live dangerously.
A top undercover cop finds and arrests a series of purse snatchers until he discovers an American at the top of an evil ring of thieves.
Inspector Betti (Maurizio Merli) is transferred to Naples and immediately after his arrival receives a warm welcome from The Commandante (Barry Sullivan), the city's crime lord. Betti then goes on a personal mission against corruption and organized crime, and tries to force the syndicate out of town with any means necessary.