Driving cross-country to a job interview, Colin takes a short cut and comes across a fatal road accident. One of the drivers, Jina, is shaken but unhurt; the other has been killed instantly. Beside the dead body is a briefcase full of money, which Colin turns in to the local police. But getting out of town proves a nightmare, as Colin's good deed causes a series of bizarre events to unfold.

In remote Western Australia, two estranged farmer brothers, Colin and Les, are at war. But when Les' prize ram is diagnosed with a rare and lethal illness, authorities order a purge of every sheep in the valley—so the brothers must work together to reunite their family, save their herd, and bring their community back together.