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22 Episodes 2002 - 2002
Episode 1
Mackenzie becomes the victim of a grifter on the eve of her interview for Head of Homicide. Meanwhile, Church finds his career threatened when a journalist attempts to expose him in a newspaper article.
Episode 2
Angie faces one of her toughest cases yet when she has to develop a romantic relationship with a murder suspect then coerce him into becoming an informant. Meanwhile, Danni refuses to accept a transfer out of Undercover, and Church tells Mac he is the father of Danni's baby.
Episode 3
Danni's determination to go it alone with her pregnancy clouds her professional judgement when she stumbles across an illegal adoption racket. In the course of the investigation, two members of the unit must pose as a couple looking to adopt a child.
Episode 4
Mackenzie discovers the grifter who drugged her is linked to a senior colleague someone who has good reason to want her out of the running for Head of Homicide. Meanwhile, Danni and Church purchase a house, and Stone goes undercover as a trainspotter to catch a serial kille.
Episode 5
Stone cultivates a live-wire young prostitute named Brittany to get information on a dangerous drug crime. Church and Danni move into their new home
Episode 6
When Church is sent undercover to share a cell with a convicted murderer, Danni must face the toughest decision of her life alone.
Episode 7
Angie is forced to bend the rules as she attempts to prevent her sister Sam from being arrested on drug importation charges.
Episode 8
Danni has to protect former undercover cop Gary Edgerton, a reluctant key witness in the trial of a major criminal, and help him prepare for his court appearance.
Episode 9
Stone goes undercover as a hitman to investigate a woman who is organising a hit on her husband, while Mackenzie is dealing with hitmen of a different kind when she finds herself the suspect in a murder.
Episode 10
Angie and the rest of the Undercover Unit rally around Mackenzie, risking their jobs in order to prove her innocence. While working undercover in Homicide gathering evidence against Harry Love, Angie recruits Church and Danni to help investigates a triple murder.
Episode 11
With Harry Love in a position to make his final move against Mackenzie, she and the Undercover Unit are forced to take desperate action, with tragic consequences.
Episode 12
Undercover teams up with Armed Robbery to bust a violent robbery ring. Church infiltrates the group but is forced to bow out when he is given a shotgun and told to rob a convenience store. It looks like Undercover has blown it until Angie uses her real-life romance with informant Marty Engle to gain access to the ring, a situation that places them both in dangerous territory.
Episode 13
Stone and Church go undercover to investigate a pair of teenage drug manufacturers, with unexpected tragic consequences.
Episode 14
Stone is abducted when Undercover's attempt to bust an international ring of arms dealers, run by lethal ex SAS officers, fails. With Church embedded with the dealers, it is up to him alone to keep Stone alive when his cover is blown and contact with the support team is lost.
Episode 15
When a failed drug bust leaves the Undercover Unit looking at a dead dealer and a high-class prostitute holding a couple of bags of cocaine, the Drug Squad and the Unit team up to undertake an operation inside a busy brothel and a foreign consulate.
Episode 16
With the help of Angie's informant Marty Engle, the Undercover Unit prepare to move in on a drug deal to catch notorious dealer Leo Goldman. However, when their operation causes the death of a young woman, Church and Angie are faced with the dilemma of saving one dangerous criminal from another.
Episode 17
Working with criminal profiler Vicki Quinlan and the new Head of Homicide Frank Callahan, the Undercover Unit investigate a serial murderer but their attempts to trap the killer leaves Mackenzie fighting for her and her best friend's life.
Episode 18
Stone, still dealing with his cancer, heads undercover to expose a high-powered businessman trading cars for heroin, but experiences a crisis of conscience when he discovers a young prostitute he has cared for is in danger as a result of his actions.
Episode 19
Church becomes convinced he is being stalked by a man who holds him responsible for the murder of his girlfriend, causing him to jeapordise the Unit's current operation, busting an illegal tobacco ring.
Episode 20
When the Unit try to nab a standover man for murder, Angie's relationship with informant Marty Engle results in a confrontation within the ranks and the Stingers having to face the fury of one of their own.
Episode 21
The Unit seems on shaky ground when Homicide attempt to charge Church with the murder of Denny Kaplan, but are devastated when Stone goes beyond the call of duty to save Church.
Episode 22
Mackenzie is faced with a choice between her personal happiness and her successful career when she becomes involved with a charismatic art thief who entices her into believing that love is more important than the law.