-
E1 Thin Ice
MacKenzie becomes the victim of a grifter on the eve of her interview for Head of Homicide, while Church's career is threatened when a journalist attempts to expose him.
-
E2 An Anonymous Guy
Angie has to develop a romantic relationship with a murder suspect and then coerce him into becoming an informant.
-
E3 Cash on Delivery
Danni's determination to go it alone with her pregnancy clouds her professional judgement when she stumbles across an illegal adoption racket.
-
E4 What's Love Got to Do with It?
MacKenzie discovers the grifter who drugged her is linked to a senior colleague - someone who had good reason to want her out of the running for Head of Homicide.
-
E5 A Little Crush
Stone cultivates a live-wire young prostitute named Brittany to get information on a dangerous drug criminal.
-
E6 No Promises
When Church is sent under cover to share a cell with a convicted murder, Danni must face the toughest decision of her life alone.
-
E7 Mule Train
Angie is forced to bend the rules as she attempts to prevent her sister Sam from being arrested on drug importation charges.
-
E8 White Ants
Danni has to protect former undercover cop Gary Edgerton and help prepare him for a court case where he is the reluctant key witness.
-
E9 In the Gun
Stone investigates a woman who may be organising a hit on her husband, while MacKenzie is dealing with hit men of a different kind.
-
E10 In Plain View
Angie and the rest of the Undercover Unit rally around MacKenzie, risking their jobs in order to prove her innocence.
-
E11 Fatal Flaw
With Harry Love in a position to make his final move against MacKenzie, she and the other Undercover have to take desperate action.
-
E12 Trust
Angie goes undercover to bust an armed robbery ring but her romance with informant Marty Engle places them both in dangerous territory.
-
E13 Big Fish
Stone and Church go undercover to investigate a pair of teenage drug manufacturers, with unexpectedly tragic consequences.
-
E14 Demilitarized Zone
Stone is abducted when Undercover fails to bust an international arms dealing ring that is run by lethal ex SAS officers.
-
E15 Blow Off
When a failed drug bust leaves Undercover with a dead dealer and a high class prostitute holding a couple of bags of cocaine, the Unit undertakes an operation inside a busy brothel.
-
E16 Inside Man
When an undercover operation causes the death of a young woman, Church and Angie are faced with the dilemma of saving one dangerous criminal from another.
-
E17 Mind Games
The Unit's attempt to trap a serial killer leaves MacKenzie fighting for her and her best friend's life.
-
E18 Disgraceful Conduct
Stone is set to expose a high powered businessman trading cars for heroin when he discovers a young prostitute he has cared for is in danger as a result of his actions.
-
E19 Smoke and Mirrors
Church becomes convinced he is being stalked by a man who holds him responsible for the murder of his girlfriend.
-
E20 Too Much Information
When the Unit try to nab a standover man for murder, Angie's relationship with an informant causes a confrontation within the ranks.
-
E21 Pale Horse
The unit seems on shaky ground when Homicide attempt to charge Church with murder, but are devastated when Stone goes beyond the call of duty to save Church.
-
E22 A Girl's Best Friend
MacKenzie is faced with a choice between her personal happiness and her successful career when she becomes involved with a charismatic art thief.