The series begins at the NSW Supreme Court where we hear if Leonard Warwick - a man accused of four murders and five bombings that hit at the very heart of Australia's legal system - will walk free, or face justice.

Debi investigates the unsolved murder of Andrea Blanchard's brother. The judiciary is shaken when bomb blasts shatter the Parramatta Family Court and the home of a third judge, killing his wife.

Andrea and her family flee Warwick's violence. Debi searches for Warwick's missing sister, Eileen. A bomb tears apart a church hall, killing one and injuring scores more.

Andrea surrenders her daughter to the killer, Debi Marshall learns more about Warwick's missing sister and sheds new light on Stephen Blanchard's murder.