Colin and Les are two warring brothers who reside in a rural town in Western Australia. Though they work side-by-side tending to the flocks of sheep, the two men are worlds apart. One day, one of Les' rams is diagnosed with a rare and extremely lethal disease, prompting the authorities to order a purging of all the sheep in their area. As their lives, livelihood, and legacies come under threat, the brothers are given a chance to make up and save their community.