When a drone catches sight of a kangaroo, siblings Lexi and Jeff set out to hunt it while their mother stays behind with little Jackie. Lexi's leg is shortened after a bad fracture, slowing her down on the shifting sand dunes; she squabbles with the younger Jeff, frustrated at times by his autism.

They find the kangaroo, but when Lexi startles Jeff into an outburst, they lose it. After Lexi comforts Jeff through a panic attack, she reveals that she broke her leg trying to save Jeff from a bad fall. The siblings reconcile.

The next morning, the first rain in a decade falls, and they find fish in the creek bed where Lexi broke her leg.