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.

Brian Kane plans Australia's most audacious gangland murder to avenge the death 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.

When Terry is arrested after a boisterous party in a Brisbane luxury hotel, its 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 its quickly clear that the

attraction is mutual.

With Terry gone temporarily, Allison takes the reins in Australia, organising new couriers to ensure business stays booming.

Meanwhile, trusted drug couriers Doug and Isabel Wilson use Terrys absence to clear their consciences and tell all to the cops. Its only when Terry is acquitted in New Zealand

that the Wilsons realise the potential consequences of their actions. What Terry doesnt know doesnt hurt him, but Terrys on his way back, hes got contacts everywhere and if he finds out the Wilsons dobbed, they're in deep trouble.

In episode seven of Underbelly, Terry decides to franchise his crime empire and expand into the UK market. Aussie Bob goes to extreme lengths to buy out Terry's share of the Organisation.

In the series finale of Underbelly, Chris "Mr Rent-a-Kill" Flannery becomes a victim of his own success. But who would dare order a hit on Australia's most dangerous hit man?