Watch Online HD on HDtoday. Following the death of a toddler at a ‘good’ rated nursery, Hayley Hassall investigates problems in early years care. Does the system designed to protect young children respond quickly enough when problems arise – and what happens when it fails? Focusing on three cases which had devastating consequences, Hayley hears from the parents of young children let down by safeguarding errors - and the whistleblowers who tried to prevent them.