S1 • E1
When a homicide investigation into the disappearance of a teenager babysitter fails to reveal any useful evidence, Church and Angie go undercover to infiltrate a sinister criminal family.
S1 • E2
Church becomes implicated in murder conspiracies when he goes undercover.
S1 • E3
When a police officer is shot, Undercover are called to investigate the prime suspects within a Romanian gang.
S1 • E4
When a serial killer claims a third victim, Undercover are called in to track him down.
S1 • E5
The unit goes into damage control after Kaye's disappearance.
S1 • E6
While undercover, Church becomes involved with Cameron Fraser, a brutal and highly skilled mercenary.
S1 • E7
Stone goes undercover to crack a large-scale Ecstasy racket.
S1 • E8
MacKenzie goes undercover to befriend a women capable of exposing a corrupt politician.
S1 • E9
Working undercover, Church inadvertently becomes involved in a volatile siege situation instigated by three young delinquents.
S1 • E10
Internal Affairs raids the Stingers warehouse after receiving a tip-off suggesting corruption.
S1 • E11
Church gives a long-term informant one last chance to prove his worth, while investigating a potential armoured car robbery.
S1 • E12
Church goes undercover with a bikie gang suspected in producing counterfeit money.
S1 • E13
After being shot at a drug deal, Stone remains undercover to crack a gun dealing racket. Mackenzie is concerned about the psychological effects the shooting may have on Stone and his future as an undercover operative.
S1 • E14
The Unit goes undercover to locate a prison escapee and investigate claims that police want him dead, rather than recaptured.
S1 • E15
Stone and Angie go undercover to infiltrate a radical environmental group suspected of stealing explosives to service terrorist activities; Church must overcome a personal vendetta.
S1 • E16
Stone and Angie go undercover to infiltrate a radical environmental group suspected of stealing explosives to service terrorist activities; Church must overcome a personal vendetta.
S1 • E17
Mac and Angie go undercover in a brothel following the murder of a second prostitute.
S1 • E18
While investigating a murder, Church inadvertently becomes involved with a well known crime family.
S1 • E19
As Church works to infiltrate a powerful crime family, he gets more involved than he had ever expected.
S1 • E20
As the Unit slowly gains information to bring about the downfall of a powerful crime family, an unexpected development threatens their progress, and forces Church to remain undercover.
S1 • E21
The Unit fears that Church's involvement with an influential crime family may cause him to cross the line, and betray them for a life of crime.
S1 • E22
The Unit discovers that someone has information that could expose Church while he's undercover, and so begins a deadly race against time.
Peter Church
Angie Piper
Ellen 'Mac' Mackenzie
Oscar Stone
Luke Harris
Christina Dicheria
Daniella Mayo
Sophie Novak
Leo Flynn
Bryan Gray