Colonel Terry Childers (Jackson) is a patriot and war hero. But when a peacekeeping mission he leads in Yemen goes terribly wrong, he finds himself facing a court martial. Accused of breaking the rules of engagement by killing unarmed civilians, Childers' only hope of vindication rests with comrade-in-arms Hays Hodges (Tommy Lee Jones), a military lawyer of questionable abilities. Together, they face the battle of their lives.