An accidental nerve gas leak by the military kills not only a rancher's livestock, but also his son. When he tries to hold the military accountable for their actions, he runs up against a wall of silence.
Rage is a 1972 American thriller/mystery film starring George C. Scott, Richard Basehart, Martin Sheen, and Barnard Hughes. Scott also directed the film, which is about a sheep rancher who is fatally exposed to a military lab's poison gas. The plot was inspired by the Dugway sheep incident.