Christopher Dale Flannery earned the nickname of 'Rent-a-Kill'. He was a hit man and gun for hire who would kill anyone if the price was right. Find out about the man who killed in cold blood before returning to his home to smother his children with affection and dote after his wife, Kathleen.

Arguably Australia's most feared gangster, Frederick 'Chow' Hayes was a convicted double murderer, sentenced to hang in 1952 for the brazen killing of stand-over man and former boxer, Bobby Lee.

Alphonse Gangitano was known as the Black Prince of Lygon Street and was the most lethal member of Melbourne's notorious Carlton Crew in the 1980s and 1990s.

Dennis Allen was the oldest son of Melbourne crime matriarch, Kath Pettingill. Abused as a child by his mother's boyfriends, he grew up knowing nothing but crime, and it became his life.

Meet Australia's most wanted man for a record 11 years. Russell "Mad Dog" Cox was a man no prison could hold. He escaped from NSW notorious "electronic zoo", the maximum security Katingal jail that politicians had said was escape proof.

Mick Sayers was a run of the mill crook who got in too deep with some of the tough nuts in Sydney's organised crime scene. Turning to drug dealing, extortion, race rigging and murder, he ripped off the wrong gangsters and paid the ultimate price.

Raymond "Ray Chuck" Bennett was Australia's criminal mastermind. A brazen armed robber and thief; he did the jobs that other criminals considered were beyond them.

Lennie McPherson ruled the Sydney crime scene for three decades. He was a violent and vicious criminal and arguably the worst of the worst. We trace the rise of Lennie McPherson from a street crook in the 1940s to the Mr. Big of organised crime.