A policeman is critically injured when struck by the getaway car from an armed robbery, and Det. Sgt. Banner finds his personal life in turmoil when an ex-boyfriend of Jenny's arrives from London on business.
When an itinerant, middle-aged bushman arrives in Melbourne, he soon finds himself involved in a turmoil of trouble. The situation is complicated further when he appears to fall in love with policewoman Margaret Stewart.
Police are on full alert when they are informed that a sadistic psychopath and a mad bomber, who have both escaped from a country hospital, are heading towards Melbourne in an attempt to destroy those who helped imprisoned them.
An unmotivated bashing looks like it could be the beginning of a series of similar loutish crimes. Suspicion falls on the son of a wealthy self-made man, who uses money to buy affection and obedience from his children, and is forced to face the fact that the making of money is not the answer to all human problems. Const. Kevin Dwyer has applied for CIB work and has been accepted for detective training, which will require his transferring away from Yarra Central.
A developer uses unscrupulous methods to force people to sell their homes in Waterloo Street to make way for a shopping complex. Miss Bobby Paigely has been living in her house for 30 years and refuses to move. Her boarders and friends come to her aid, and decide on a campaign against the development company which results in a street battle, complete with flour bombs and squirting water hoses. The Yarra Central police arrive and become embroiled in the fight.
A schoolgirl is bashed unconscious, and another disappears. The police suspect rape and kidnap, but new evidence shows the crimes in a different light, and reveals a new facet of the two girls' characters.
While trying to escape, a housebreaker is struck by Det. Peters driving the C.I. car, and is seriously injured. During the subsequent investigation, police delve into the past of the housebreaker's girlfriend.
A gang of four dangerous criminals pull a major payroll robbery, and the entire Yarra Central crew is called in to assist. While arresting one of the thieves, Banner is shot in the shoulder and is forced to take a few days leave. He spends the time with his girlfriend Jenny, but her constant contact with friends she knew in England plus the pressure of Banner's job puts a strain on their relationship, so much so that Banner fears he may lose her. With this problem on his mind, plus the efforts to locate and capture the ringleader of the gang, he comes to the point ...
New Constable Bob Parry is giving the Yarra Central police moments of anxiety; car thieves are complicating inquiries; Policewoman Margaret Stewart has a secret; and Det. Peters involves himself in a doubtful romance.
A special detective is assigned to Yarra Central to investigate cases of missing females. One particular case reveals that a masked assailant is at large - with a terrible and horrible result. Ray Preston receives his promotion to Senior Constable.
Yarra Central police have a difficult task ahead of them as they search for a prisoner taken from them at gunpoint. Then they learn that the person who freed the prisoner is out to get them - and in particular Det. Sgt. Banner.
Two police recruits are accused of instigating a fight with a gang of youths. A controversy erupts concerning the training of police recruits when one of the youths suffers permanent brain damage as a result.
A policewoman temporarily stationed at Yarra Central becomes the target of a seemingly maniacal killer. Police desperately try to establish the killer's identity and motive before the threat can be carried out.
When a young woman is released from Greenleigh Women's Prison she faces many problems. Policewoman Jane Bell, assigned from Russell Street to Yarra Central, tries to help but soon learns that personal involvement is not always the answer.
Police are concerned about a polish immigrant who lives in Yarra Central, isolated from the outside by her memories. When a boarder moves in with her, it appearers that the grim past she left behind in Poland has caught up with her.
Yarra Central police investigate a gangland execution and become concerned when a crime-hating colleague intimidates a suspect. Sen. Det. Peters finds himself totally opposed to the other policeman's attitude to criminals.