1. When the Wind Changed

The Grimmer family moved from the UK to Australia in 1969. They were "ten pound poms" - part of a huge wave of migration down under.
Months later, Three-year-old Cheryl Grimmer disappeared from Fairy Meadow beach in New South Wales. She was never seen again. In the moments before she vanished, she was being looked after by her oldest brother, Ricki. He was just seven.
This is the story of that day, and of its impact in the months, years and decades that followed. It's Ricki's story - his desperate search for answers, and his battle with guilt.
And it's the story of an extraordinary police…