Underbelly

Drug dealers Terry Clark, a Sydney-based charmer with a twinkle in his eye and a big dream, and Bob Trimbole, from the town Griffith, form a partnership in the heroin trade in New South Wales.

Detective Warwick Mobbs suspects a series of slip-ups, mixed with a healthy dose of police corruption, are the reason why his efforts to solve Don Mackay's murder are constantly frustrated.

When teacher Allison Dine arrives in Australia, she is looking for a chance to leave the pain of her mother's recent death behind. She soon begins working for Terry Clark as a drug courier.

The Kanes are now protectors for Trimbole's dealers in Melbourne.

Sharing an exercise yard with a freshly de-eared Mark "Chopper" Read may not be everybody's idea of a good time but for Ray Chuck, prison is a safe haven compared to what's waiting for him outside.

As the hunger for heroin in Australia grows, one of the organization members gives too much information to the cops and Terry Clark makes a bruised and battered example of him.

Terry Clark decides to franchise his crime empire and expand into the UK market. In an audacious move he offers to sell his stake to Bob Trimbole, and lets Allison in on some key business secrets.

With Terry relocated to the UK, Allison is determined to get on with the Australian end of the business whilst fending off increasingly desperate sensations of loneliness and isolation.

Clark, paranoid and living in exile in the UK, pressures Trimbole to take out a contract on Allison, whose fragile state is further shaken by the note of finality in Terry's voice as he says goodbye.

Terry's plan to get rid of his business partner Marty "Mr Asia" Johnstone backfires when his butchered remains are discovered in the UK. Meanwhile Allison is arrested by the FBI.

The police prepare to arrest Trimbole, who has just learnt he has cancer, but a mole within the feds threatens to create havoc with their investigation. Also, Allison testifies at a coroner's inquest.

With Terry on trial for murder in England and Bob on the run abroad, the 'Mr Asia' drug syndicate has collapsed meaning the Australian heroin business is up for grabs.

A dying Trimbole is arrested in Ireland. Elsewhere, the corrupt NSW detectives are concerned about the behaviour of hitman Chris Flannery and call upon crime king George Freeman for help.