Fourteen-year-old Sam Rivers lives on a farm in rural South Australia and when he, his dog Blackie, and three friends from a neighboring farm set out to explore the eerie sand hills at the back of his farm, they discover the perfect place to build a fort. The night before the four friends embark to begin creating their fort with a secret lookout, twenty more sheep disappear from a property down the road. Sheep rustling is rampant and when Sam and...