In this episode: the case of Chloe Valentine, a four-year-old girl killed in South Australia in January 2012 after being repeatedly put on a motorbike she was physically unable to control, then left without medical care for more than eight hours as her injuries turned fatal.

Before her death, at least twenty separate notifications about Chloe's welfare had been made to Families SA, South Australia's child protection agency, by family members and others who knew the household.

We cover:

• Chloe's background and the years of documented concern raised on her behalf
• What happened over the three days leading to her death
• The six-week coronial inquest led by Coroner Mark Johns, and his finding that the system was "broken and fundamentally flawed"
• The criminal case against Ashlee Polkinghorne and Benjamin McP ...