Orphaned 14 year-old Cody (Henry Thomas) is a typical boy with an adventurous spirit and imagination to match. Living with his guardian Gaza (Tony Barry) in an outback Australian township, Cody learns of an ancient Aboriginal myth known as 'Donkegin', sparking an interest that will not let him rest. Convinced there is an underwater monster in a nearby dam, Cody and his close friend embark on a journey that will take them into the very shadow-land of mystery and intrigue.