Episode 1
Church's determination to find Ingrid, missing for seven days, brings him into conflict with his colleagues.
Episode 2
An undercover operation investigating stolen art reveals black market dealings.
Episode 3
Harris' attempts to teach a mate a lesson in crime and punishment backfire with disastrous consequences.
Episode 4
When Angie is hired as a nurse by two brothers, she's forced to go on a job without back-up.
Episode 5
Chris' future is jeopardised when she's forced to shoot a former squat mate.
Episode 6
The team lose a colleague when a hostage situation erupts at Police Headquarters.
Episode 7
While investigating the murder of a friend, Church loses Angie's Heart to his boss, Luke Harris.
Episode 8
Church and Angie penetrate the liberated world of swinging couples and find that love really is a drug.
Episode 9
Church fakes the murder of a security guard to infiltrate a Jewish crime family.
Episode 10
Chris' relationship with a lesbian clubber turns to tragedy when her lover is suspected of murder.
Episode 11
The unit discover a renegade young detective who has all the qualities to become the new undercover recruit.
Episode 12
Rookie Leo Flynn bites off more than he can chew while investigating a drug war between two rival ice-cream vendors.
Episode 13
Harris takes an impulsive trip to Singapore in an attempt to win Angie's heart and protect her from Internal Affairs.
Episode 14
A young deaf girl arrives at PHQ declaring she's Church's daughter. When Harris uses her to solve a crime, all hell breaks loose.
Episode 15
The undercover unit simultaneously pursues a European war criminal and her drug dealing son.
Episode 16
A sexual indiscretion of Harris' comes back to haunt him when Church is hired to kill him.
Episode 17
Church makes a dangerous call when faced with a conflict of loyalty between Harris and his old boss, Bernie rocca.
Episode 18
Flynn endangers his life and that of his pregnant sister on a deadly assignment with two cop killers.
Episode 19
Chris risks her life to sting a sadistic chef for murder.
Episode 20
Church is hired at a furniture removal company suspected of a drug Courier business.
Episode 21
Masters goes undercover in order to bust a racehorse stealing, coke dealing porn king.
Episode 22
Church goes undercover as a spiritual medium to hoodwink an international gun runner.
Episode 23
Sophie takes Church to lunch with two of the state's biggest criminals. But will the meal be church's last?
Episode 24
While playing nanny to the daughter of a suspected hitman, Chris is horrified by the child's revelation.
Episode 25
Leo finds himself in deep trouble with a group of armed robbers while Harris is having his own problems.
Episode 26
Harris is blackmailed by an adversary from his past who threatens to reveal his fire psychiatric disorder. Meanwhile, Angie receives a proposal of marriage.
Episode 27
Harris' blackmailer has more tricks up his sleeve which puts Angie's life on the line.
Episode 28
Bi-polar, confused, gun-toting, groom Luke is a bundle of nerves - but not over the big day.
Episode 29
The showdown between Harris and his blackmailer reaches a dramatic climax and Angie may pay the price.
Episode 30
Church unwillingly agrees to play Cupid for an informant and his estranged wife, until she is murdered.
Episode 31
Flynn finds himself in a treacherous love triangle when he is seduced by colleague.
Episode 32
A teenage love affair puts one of the team's children at risk on a major drug job.
Episode 33
Things quickly become more complicated in Angie and Luke's marriage.
Episode 34
Eight months have passed since Chris was shot by an unseen gunman, but the shooter's identity is still to be found.
Episode 35
Church goes undercover as a hitman in a desperate attempt to save a kidnapped girl.
Episode 36
Church's efforts to nail a high profile people smuggler are thrown into chaos by a rogue homicide detective.
Episode 37
Flynn wakes up in a hazy, drug-induced state next to the dead body of a prostitute.
Episode 38
A drug dealer offers to act as an informant in his father's drug organization. However, he has a condition: Chris must go on a date with him.
Episode 39
Despite agreeing to help her, Church is not convinced that he can trust the daughter of one of his informants.
Episode 40
Working undercover, a masked Leo is forced to steal the proceeds of an illegal poker game - and the main players happens to be none other than Peter Church and Brian Gray.