Division 4 - Season 4 (1972)

Jim O'Brien is released on parole after serving 18 months of a long jail term. His homecoming is marred by treachery and a faithless wife.

Constable Dwyer attempts to establish a youth club for delinquent kids, and becomes involved with the theft of some power tools, a cop with a chip on his shoulder and a tough old matriarch named Porky.

Police informer Sammy Goodall finds his life is threatened by criminal associates in the Melbourne underworld.

The local newspaper and the Yarra Central police become involved when a wealthy woman, the wife of a successful business man, steals jewellery from a shop.

A prison officer is reported missing. He is later found unconscious but unharmed, and police investigate a possible case of revenge or blackmail by ex-prisoners.

Constable Dwyer orders Barry Ward, a young owner-driver, to have his truck made roadworthy within five days, but when Barry finds he cannot pay for the repairs he is drawn into crime.

Yarra Central police investigate some burglaries and come to a surprising result. The case involves a plain-looking girl and a heartless petty criminal.

Yarra Central police are searching for Sally Young, a prisoner from Fairlea Woman's Prison, who has escaped from policewoman Stewart. An aggressive old man who lives near the police station knows more than he has told them.

Evie Morris is a housewife who turns to prostitution to provide a better home for her family.

A series of baffling robberies from art galleries plague the Yarra Central police. Matters become complicated when it is revealed there is more than one group responsible.

Yarra Central police have a hard time trying to find Neville, a mentally disturbed youth who smashes things when people upset him.

Yarra Central police have their hands full when an Italian ex-safe breaker is forced back into crime.

Yarra Central police make a concerted effort to find several unknown people who have picked up packages containing a highly dangerous chemical.

A drunken group of elderly men get together for a surf life-saving club reunion. The party goes sour when one of the old men suddenly drops dead. Rather than report it to the police, they decide to bury their friend in the backyard.

Herbie Pike is a balding, middle-aged company clerk who has lived his life by the clock with only dreams of making a lot of money. Suddenly he breaks into crime in a very big way.

When Det. Sgt. Vickers's niece comes to visit, Det. Peters takes her out and on one of these occasions his car is stolen. Meanwhile, Yarra Central police are kept busy with a series of vicious assaults and robberies.

Sgt. Macleod's wife becomes involved with a woman who has invented a machine which supposedly cures physical illnesses.

When top safe-cracker Barney 'Houdini' Ward gets out of Pentridge, his brother Clyde enlists his help to rob $100,000 in diamonds. Barney soon finds there is more to this 'nice safe job' than he was led to believe, and he implements a clever scheme to thwart a criminal organization led by a vicious Goldfinger-type woman.

An habitual criminal, thinking that his son will help him to reform, asks Sen. Det. Banner for help in locating him.

Yarra Central police are faced with a series of crimes committed against women. Their investigations lead to a man who had been undergoing psychiatric treatment and whose wife divorced him, and who is seeking retribution against other women who have divorced their husbands.

When an army conscript returns home on leave to find his fiancée bashed and raped, it appears that his drunken brother could somehow be involved.

Armed hold-ups, housebreakings, a domestic dispute and illegal use of guns cause Yarra Central police to experience a bad weekend with firearms.

An idealistic Scottish locksmith, who has been a communist all his life, resorts to crime when he becomes involved with Cliff Wood, an habitual criminal, to raise funds to go to Moscow.

During a series of house breakings, a bank manager is bashed when his home is broken into and his bank keys are stolen.

Yarra Central police run into difficulties when they try to solve a number of hold-ups in which the getaway car is driven by a clever, mysterious driver.

Yarra Central police investigate the actions of a visiting yachtsman, Tom Anderson, who is involved in bird smuggling. Anderson has conned a young girl, Karen, into the smuggling racket, and events culminate with Anderson seeking revenge against Banner.

Constable Dwyer heads for major trouble when he becomes involved in what appears to be a minor accident.

Det. Sgt. Vickers is set off on a relentless search for counterfeit plates when he learns the name of a man booked for a minor traffic offence.

Peter Watson, a previous sex offender recently released from prison, is the suspect when a number of rapes occur in Yarra Central.

Yarra Central police are confronted with an imported method of committing petty crimes involving the skillful riding of motor cycles.

Yarra Central police move into action when Vickers' wife is terrorised by a youth who loathes the police and is seeking revenge.

The investigation of an obscenity charge against an underground newspaper, 'The Oracle', leads the police to a subculture of revolution and drugs.

Banner gambles with death when he must deal with a man intending to shoot his aged father and then himself.

A shopkeeper shoots an intruder and Yarra Central police uncover some facts that cast doubt upon his version of events.

A vicious assault on a small baby alarms the Yarra Central police. They are in for another shock when they learn that policewoman Margaret Stewart is planning to leave the force.