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 murder trial reaches a sensational climax, but can Allison testify against her former lover? Meanwhile, Aussie Bob gets involved in arms smuggling for the IRA.

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?

Ambitious teenager John Ibrahim earns respect when he cheats death and buys into his first nightclub. Naive country girl Kim Hollingsworth takes her first steps into prostitution, starting a chain of events that will rock the Golden Mile.

John Ibrahim dodges death after being shot, and gets some powerful career advice from George Freeman. Detective Trevor Haken strikes a profitable deal to control the drug trade in Kings Cross. Kim turns her back on prostitution and applies to join the NSW Police.