Clinging to life as tenaciously as they grip the slippery slopes of Australia's Snowy Mountains, live 25 Brush Tailed Rock Wallabies. Thought to be extinct, their re-discovery has resulted from an unlikely alliance between scientists and Australian bushmen. Now the race is on to save a pregnant female. Abseiling over cliffs and rafting down the spectacular Snowy River is part of the plan to increase this tiny population and provide a last chance for the Joey from the Snowy.