In the mid 1970s, Kiwi charmer Terry Clark and 'Aussie' Bob Trimbole form a deadly alliance that will change the face of Australian crime forever.

Anti-drugs campaigner Donald Mackay makes deadly enemies with the Griffith mafia and corrupt NSW police. Melbourne crim Ray Chuck plans Australia's most audacious heist - the Great Bookie Robbery.

A beautiful young Kiwi, Alison Dine, becomes Terry Clark's lover and most inventive drug courier. Meanwhile, 'colourful racing identity' George Freeman uses his illegal profits to corrupt NSW police and judiciary while a cleanskin cop is shocked to discover the extent of the corruption.

An armed robbery in Melbourne sparks a deadly turf war between rival gangland 'generals', the Kane brothers and Ray Chuck. Terry and Bob fear the Melbourne gang war will affect their lucrative heroin distribution network. Meanwhile, Gangland wife Judi Kane tries to protect her children when her worst nightmare becomes a reality.

Brian Kane plans Australia's most audacious gangland cuddle to avenge the passing of his brother Les. Meanwhile, Ray Chuck forms an alliance with Mark 'Chopper' Read in a Melbourne jail. Also, aspiring hitman Chris Flannery finally gets his big break and Terry's growing drug empire is under threat from problems in Australia and Singapore.

The hunger for heroin in Australia means Terry Clark and the organization are turning over big bucks. Terry has more money, but also more to lose. When Terry is arrested after a boisterous party in a Brisbane luxury hotel, it's an old New Zealand criminal charge that sees him extradited for trial in his home country. There he meets the striking Karen Soich, a member of his legal team, and it's quickly clear that the attraction is mutual.

Terry decides to franchise his crime empire and expand into the UK market, and Allison is promoted to a major role in the organisation. Aussie Bob goes to extreme lengths to buy out Terry's share of the drug business. Meanwhile, corruption in the NSW police and judiciary sinks to a new low.

Allison questions her role in the Mr Asia syndicate after her life is threatened by a corrupt Federal Narcotics Bureau agent. Colourful racing identity, George Freeman, takes extreme action after police raid his illegal casinos. The Mr Asia syndicate suffers a major setback when a drug courier is arrested.

Aussie Bob Trimbole is pressured to arrange a gangland hit on his friend and colleague, Allison Dine. Meanwhile, paranoid and living in exile in the UK, Terry Clark must terminate his relationship with 'Mr Asia'. Also, George Freeman is determined to get revenge on his would be assassin, and aspiring hitman 'Mr Rent-a-kill' gets his big break.

Terry Clark's drug empire starts to unravel when he is arrested for cuddle in the UK, while Allison is arrested by the FBI and becomes a star witness against organised crime. With his heroin supplies drying up, Aussie Bob plans Australia's biggest ever cannabis smuggling operation. Meanwhile, the Federal Police have a major win against corruption at the Narcotics Bureau.

The Federal Police prepare to arrest crime boss and cancer sufferer Aussie Bob Trimbole. But a mole within the Feds threatens to create havoc with their investigation. Also, Alison Dine testifies at a coroner's inquest, and blows the lid on the Mr Asia syndicate.

Australia's most dangerous hitman, Chris 'Mr Rent-a-Kill' Flannery, moves to Sydney to build his deadly reputation. Terry Clark's UK cuddle trial reaches a sensational climax, but can Allison testify against her former lover? Meanwhile, Aussie Bob gets involved in arms smuggling for the IRA.

Mr 'Rent-a-Kill' Chris Flannery becomes a victim of his own success. Colourful racing identity George Freeman takes extreme measures to wipe out the competition. The Federal Police race against time to capture Aussie Bob from his hideouts in Ireland and Spain.