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.
A mouthy and feisty taxicab driver has hot tips for a green and inept cop set on solving a string of New York City bank robberies committed by a quartet of female Brazilian bank robbers.
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.
Mason Storm, a 'go it alone' cop, is gunned down at home. The intruders kill his wife, and think they've killed both Mason and his son too. Mason is secretly taken to a hospital where he spends several years in a coma. His son meanwhile is growing up thinking his father is dead. When Mason wakes up, everyone is in danger - himself, his son, his best friend, his nurse - but most of all those who arranged for his death
Dan Saxon is an undercover cop who infiltrates a biker gang to nail the scum behind a drug-smuggling operation. In order to maintain the trust of the gang's leader, he must commit ever more dangerous and heinous crimes. Just how far 'beyond the law' will Saxon go?
Jae-ho, who aims to become the number one in a crime organization, gets to build up trust with Hyun-su, an ambitious newbie in the prison. While they try to take over the organization after the prison release, their ulterior motives starts to emerge.
On New Year's Eve, inside a police station that's about to be closed for good, officer Jake Roenick must cobble together a force made up cops and criminals to save themselves from a mob looking to kill mobster Marion Bishop.
New York cop Frank Serpico blows the whistle on the rampant corruption in the force only to have his comrades turn against him.
A female private detective goes undercover as a porno actress to find a millionaire's missing daughter.
A Tokyo cop is sent to Los Angeles to help an LAPD detective break up a yakuza ring operating in the city.
A cop Arul (Arya) is on an undercover mission to capture the underworld don Jothi (Ashutosh Rana) who runs a smuggling mafia in Goa. When both Arul and his friend Chandra (Ramanna) plans to arrest Jothi, things go haywire and the rest of the story tells us whether Arul completes his mission by playing a mind game.
Following the tragic events of Sting of the Scorpion, Maggie finds herself stripped of her rank and committed to an insane asylum. The crooked cop who put her there offers to procure her release and reinstatement - if she'll go undercover as a bar hostess to spy on the triads. The whole thing's a setup, of course, and soon Maggie is on the run from the law, as well as nursing a bad heroin addiction. She finds refuge in the criminal underworld, where she accepts a job as an undercover assassin. But when her identity is exposed, Maggie has both sides of the law gunning for her life.
College student Jake Lo is pursued by smugglers, mobsters and crooked federal agents after he witnesses a murder by a Mafia kingpin.
A by-the-book police officer is assigned to secretly investigate a team leader who believes that the rules shouldn't stop an investigation. As the officer investigates further, his own attitudes begin to mirror the team leader's.
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.
Two female tourists are taken hostage by criminals who are chasing a man recently released from prison who knows the whereabouts of stolen money
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 train journey from Chicago to Los Angeles.
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 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.