Thin Ice

E1

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.

An Anonymous Guy

E2

Angie has to develop a romantic relationship with a murder suspect and then coerce him into becoming an informant.

Cash on Delivery

E3

Danni's determination to go it alone with her pregnancy clouds her professional judgement when she stumbles across an illegal adoption racket.

What's Love Got to Do with It?

E4

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.

A Little Crush

E5

Stone cultivates a live-wire young prostitute named Brittany to get information on a dangerous drug criminal.

No Promises

E6

When Church is sent under cover to share a cell with a convicted murder, Danni must face the toughest decision of her life alone.

Mule Train

E7

Angie is forced to bend the rules as she attempts to prevent her sister Sam from being arrested on drug importation charges.

White Ants

E8

Danni has to protect former undercover cop Gary Edgerton and help prepare him for a court case where he is the reluctant key witness.

In the Gun

E9

Stone investigates a woman who may be organising a hit on her husband, while MacKenzie is dealing with hit men of a different kind.

In Plain View

E10

Angie and the rest of the Undercover Unit rally around MacKenzie, risking their jobs in order to prove her innocence.

Fatal Flaw

E11

With Harry Love in a position to make his final move against MacKenzie, she and the other Undercover have to take desperate action.

Trust

E12

Angie goes undercover to bust an armed robbery ring but her romance with informant Marty Engle places them both in dangerous territory.

Big Fish

E13

Stone and Church go undercover to investigate a pair of teenage drug manufacturers, with unexpectedly tragic consequences.

Demilitarized Zone

E14

Stone is abducted when Undercover fails to bust an international arms dealing ring that is run by lethal ex SAS officers.

Blow Off

E15

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.

Inside Man

E16

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.

Mind Games

E17

The Unit's attempt to trap a serial killer leaves MacKenzie fighting for her and her best friend's life.

Disgraceful Conduct

E18

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.

Smoke and Mirrors

E19

Church becomes convinced he is being stalked by a man who holds him responsible for the murder of his girlfriend.

Too Much Information

E20

When the Unit try to nab a standover man for murder, Angie's relationship with an informant causes a confrontation within the ranks.

Pale Horse

E21

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.

A Girl's Best Friend

E22

MacKenzie is faced with a choice between her personal happiness and her successful career when she becomes involved with a charismatic art thief.