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)
A Tokyo cop is sent to Los Angeles to help an LAPD detective break up a yakuza ring operating in the city.
College student Jake Lo is pursued by smugglers, mobsters and crooked federal agents after he witnesses a murder by a Mafia kingpin.
Tom Ludlow is a disillusioned L.A. Police Officer, rarely playing by the rules and haunted by the death of his wife. When evidence implicates him in the execution of a fellow officer, he is forced to go up against the cop culture he's been a part of his entire career, ultimately leading him to question the loyalties of everyone around him.
To take down South Boston's Irish Mafia, the police send in one of their own to infiltrate the underworld, not realizing the syndicate has done likewise. While an undercover cop curries favor with the mob kingpin, a career criminal rises through the police ranks. But both sides soon discover there's a mole among them.
After being thrown out of the police academy, Debbie Fung (Ellen Chan) gets a new chance but instead the proposition is to go undercover. Accepting the mission to get close to tycoon Lau Fuk Tin (Michael Wong) as he's suspected of a number of murders of women, under the disguise of Maryanne, Debbie quickly gets close to Lau. Going so far as getting almost permanent residence with the man, Debbie witness horrific things on the grounds. Despite, affection starting to develop towards her target.
When Erin Bell was a young cop, she was given an undercover assignment that ended badly and destroyed her life. Years later, she must face her demons in order to make peace with her past.
Enforcing the law within the notoriously rough Brownsville section of the city and especially within the Van Dyke housing projects is the NYPD's sixty-fifth precinct. Three police officers struggle with the sometimes fine line between right and wrong.
Two street-wise Chicago cops have to shake off some rust after returning from a Key West vacation to pursue a drug dealer that nearly killed them in the past.
Undercover cop Jim Raynor is a seasoned veteran. His partner, Kristen Cates, is lacking in experience, but he thinks she's tough enough to work his next case with him: a deep cover assignment to bring down the notoriously hard-to-capture drug lord Gaines. While their relationship turns romantic during the assignment, they also turn into junkies, and will have to battle their own addictions if they want to bring down Gaines once and for all.
While investigating police corruption in his department, undercover cop Buster McHenry is forced to participate in a heist, leading to innocent casualties and the theft of an ancient Lakota tribal spear. After McHenry ends up severely wounded, he is taken in by Native American Hank Storm, who is out to recover the spear and avenge the death of a loved one in the heist.
Jack Caine is a Houston vice cop who's forgotten the rule book. His self-appointed mission is to stop the drugs trade and the number one supplier Victor Manning. While involved in an undercover operation to entrap Victor Manning, his partner is killed, and a sinister newcomer enters the scene...
Detectives Jimmy and Paul, despite nine years as partners, can still sometimes seem like polar opposites—especially when Paul's unpredictable antics get them suspended without pay. Already strapped for cash and trying to pay for his daughter's wedding, Jimmy decides to sell a rare baseball card that's worth tens of thousands. Unfortunately, when the collector's shop is robbed and the card vanishes with the crook, Paul and Jimmy end up going rogue, tracking down the card and the drug ring behind its theft, all on their own time and without any backup—except for each other.
The rather convoluted plot follows Santiago, a car thief and supposed electronic genius who works undercover for the police and is attempting to shut down an auto theft ring. Various crime organizations are involved, each plotting against each others. To complicate matters, several law enforcement branches are also competing against each others.
Three youthful delinquents escape conviction for their crimes by teaming with the LAPD.
Black police officer Russell Stevens applies for a special anti-drug squad which targets the highest boss of cocaine delivery to LA—the Colombian foreign minister's nephew. Russell works his way up from the bottom undercover, until he reaches the boss.
In 1990s New York, an undercover police officer receives an assignment to lure and arrest gay men. However, he's surprised to discover a scintillating connection with one of his targets. As their secret connection deepens and internal pressure to deliver arrests intensifies, he finds himself torn between duty and desire.
After surviving an attempt on his life by his former partner, officer Cliff Garrett (Norris) exacts revenge on those who wronged him by going undercover as a hit man. He works to gain the reputation and trust needed in order to be accepted by the burgeoning Seattle-area criminal underworld, but it is all done in order to take it down from within.
A ruthless gangster named Don is killed during a scuffle with the police. Since only DSP D'Silva knows of this incident, he recruits Vijay, who is a spitting image of Don, to replace the original Don and infiltrate his gang. D'Silva plans to nab the entire gang, but when he dies during a raid, the secret that Vijay is not Don is also buried with him.
The head of an elite Hong Kong surveillance unit keeps one eye on his rookie apprentice and the other on a notorious criminal he suspects of masterminding a recent jewel heist in this tense thriller from filmmaking duo Johnnie To and Nai-Hoi Yau. Of course, the criminal knows all along he's being watched. But that doesn't stop him from trying to pull off the biggest score of his career.