Season 4 (2001)
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Episodes 22
Rich Man's World
Church uses an informant to infiltrate a drug syndicate, with tragic consequences.
Read MoreBeyond Redemption
Angie goes undercover at a halfway house to obtain evidence against a psychopathic killer.
Read MoreTell Me You Love Me
Church and MacKenzie pose as a married couple experiencing relationship difficulties as they investigate a murder.
Read MoreFool to Want You
Church becomes the prime suspect in a murder investigation when he moonlights as a private investigator.
Read MoreFamily Values
Church goes undercover in a bikie gang to expose a major amphetamine ring, with unexpected and tragic consequences.
Read MoreWhatever It Takes
The future of the Undercover Unit looks uncertain when Stone is investigated for the shooting death of biker Chicken Lake.
Read MoreInto the Darkness
In the aftermath of Bill Hollister's murder, MacKenzie grieves while Church tries to bring the killer to justice.
Read MoreFoster Cops
Church and Danni pose as foster parents in an unusual operation to capture Australia's Most Wanted Armed Robber.
Read MoreThe Whisper Room
The Undercover Unit investigates a group of paedophiles who use an internet chat-room to procure their victims.
Read MoreDog Eat Dog
The Undercover Unit stage an intensive investigation to nail the ex-police officer believed responsible for Bill Hollister's murder.
Read MoreLove Hurts
A case of mistaken identity results in Stone being recruited to assist with a major armed robbery.
Read MorePsychotic Episode
Strange guns, UFOs, and piggerists with glass eyes - it's all in a day's work for Church, when his only source of information for a possible murder case is a paranoid schizophrenic.
Read MoreTrue Colours
MacKenzie makes contact with her natural mother and both women become embroiled in an Undercover operation to nail a mastermind armed robber.
Read MoreToo Many Crooks
The Unit works with an undercover operative from Queensland to defeat a gang of amphetamine dealers responsible for a kidnapping.
Read MoreJust Another Day
Stone is caught in a siege situation at a hospital when an armed robbery goes horribly wrong.
Read MoreDo the Right Thing
As Church, Danni, Stone and Angie focus on a drug sting, MacKenzie is distracted by an invitation to apply for Head of Homicide - which would mean leaving the Undercover Unit.
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