CHRIS UHLMANN, PRESENTER: Australia's one of the richest countries in the world, Sydney the 7th most expensive city, yet just hours away from such privilege and wealth lies a community in turmoil and decay. The scale of the dysfunction locked inside the tiny Aboriginal mission of Toomelah is breathtaking. In recent week there's have been rumours of a government-led intervention, or of a complete relocation. Those rumours have amounted to nothing. But the people of Toomelah and the children living amidst the turmoil desperately need help. How has it come to this? Caro Meldrum-Hanna has this special report.