Ian Thorpe, Ernie Dingo and Julia Zemiro are setting out on extraordinary experiment.They’re about to become some of the first people in Australia to use DNA to go on a journey tracing their ancestry back through more than 200,000 years.

While Ian and Julia follow the human family tree out of Arabia and into Israel, Ernie journeys east following his genetic route map.The journey of genetic time travel is entering its final stage. And for the three intrepid explorers there will be surprises close to home.

Ian Thorpe, Ernie Dingo and Julia Zemiro have all donated their DNA so they can retrace their ancient ancestry. Having started out together in Africa, they’re now making their way across the world on separate journeys.