StingersSeason 42001 · 22 episodesEpisodes1SnakeheadThe Undercover Unit is called in to investigate when eleven illegal immigrants are found dead inside a shipping container.2Rich Man's WorldChurch uses an informant to infiltrate a drug syndicate, with tragic consequences.3Beyond RedemptionAngie goes undercover at a halfway house to obtain evidence against a psychopathic killer.4Tell Me You Love MeChurch and MacKenzie pose as a married couple experiencing relationship difficulties as they investigate a murder.5Fool to Want YouChurch becomes the prime suspect in a murder investigation when he moonlights as a private investigator.6Family ValuesChurch goes undercover in a bikie gang to expose a major amphetamine ring, with unexpected and tragic consequences.7Whatever It TakesThe future of the Undercover Unit looks uncertain when Stone is investigated for the shooting death of biker Chicken Lake.8Into the DarknessIn the aftermath of Bill Hollister's murder, MacKenzie grieves while Church tries to bring the killer to justice.9Foster CopsChurch and Danni pose as foster parents in an unusual operation to capture Australia's Most Wanted Armed Robber.10The Whisper RoomThe Undercover Unit investigates a group of paedophiles who use an internet chat-room to procure their victims.11FeudThe Undercovers investigate an extortion attempt against a pharmaceutical company and find themselves at the centre of a long-term feud.12One of UsStone is recruited by an Assistant Commissioner to assassinate the Bomb-maker responsible for Bill Hollister's death.13Dog Eat DogThe Undercover Unit stage an intensive investigation to nail the ex-police officer believed responsible for Bill Hollister's murder.14SliceDanni's cover is blown and her career is threatened when an escaped criminal seeks his revenge.15Love HurtsA case of mistaken identity results in Stone being recruited to assist with a major armed robbery.16Psychotic EpisodeStrange 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.17ClosureMacKenzie investigates a Private Detective who specialises in adoption cases, with the secret hope of locating her birth mother.18True ColoursMacKenzie makes contact with her natural mother and both women become embroiled in an Undercover operation to nail a mastermind armed robber.19Too Many CrooksThe Unit works with an undercover operative from Queensland to defeat a gang of amphetamine dealers responsible for a kidnapping.20Just Another DayStone is caught in a siege situation at a hospital when an armed robbery goes horribly wrong.21ReunionChurch's worlds collide when he has to attend his twenty year high-school reunion as part of a drug sting.22Do the Right ThingAs 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.Season 1Season 2Season 3Season 5Season 6Season 7Season 8
