In the grand 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? Colourful racing identity George Freeman takes extreme measures to wipe out the competition. The Australian Federal Police race against time to capture "Aussie" Bob Trimbole, from his hideouts in Ireland and Spain.
Police finally solve the 1976 murder of Griffith anti-drugs campaigner Donald Mackay, the crime that triggered the war on drugs and corruption.
Chris "Mr Rent-a-Kill" Flannery is the most dangerous and volatile man in Australia, hands down. His abilities as a hit man are beyond doubt, but his wild ways are starting to make people nervous. In particular, the corrupt NSW detectives are concerned that Chris has become a loose cannon and a destabilising force on the underworld. They call upon crime king George Freeman to keep Chris under control.
After using Chris to help take care of some of his own "loose ends", Freeman takes it upon himself to eradicate "Mr Rent-a-Kill" with a little help from his friends.
With Terry Clark serving a life sentence for murder in the UK, the Australian Federal Police (AFP) has shifted its focus on catching Bob Trimbole.
"Aussie" Bob is currently on the run in Europe, battling with life-threatening prostate cancer and trying to keep his various criminal activities bubbling along. He is determined to provide for his family before cancer catches up with him.
As part of its strategy to flush out Bob Trimbole, the AFP endeavours to cut off his cash flow, which means tracking Nick Paltos' seven-tonne hash shipment. If they nab Paltos, they might extract Trimbole's whereabouts and pin down the major profit takers who bankrolled the whole deal, including certain elements of the Sydney Criminal Investigation Bureau.
But time is running out for Trimbole. Hounded by the AFP, tormented by guilt, and trapped in a foreign hospital, Trimbole's life is unravelling fast. There will be no happy ending for "Aussie" Bob.
The AFP has much to celebrate. Both Terry Clark and Bob Trimbole are now off the scene — for good. They have finally solved the murder of Griffith anti-drugs campaigner Donald Mackay and provided justice for his widow Barbara. They have unmasked the webs of corruption that poisoned the justice system, particularly in NSW.
But the cancer of corruption and organised crime is resilient. And the criminals who profit from it are always looking for new ways to reinvent themselves.
