Three children, Dusty, Bowie, and Casper, have an entire Marine Reserve almost to themselves. The bush, crashing ocean, steep cliffs, caves, and secret places fuel their imaginations and sense of adventure.One day, however, a frightening reality arrives in their sleepy town. The children are faced with great danger and need to demonstrate courage, determination, and analytical skills. The adventure tests their bravery and teaches them greater awareness, honesty, and resilience.