Wounded Civil War soldier, John Dunbar tries to commit suicide – and becomes a hero instead. As a reward, he’s assigned to his dream post, a remote junction on the Western frontier, and soon makes unlikely friends with the local Sioux tribe.
On July 2, a giant alien mothership enters orbit around Earth and deploys several dozen saucer-shaped ‘destroyer’ spacecraft that quickly lay waste to major cities around the planet. On July 3, the United States conducts a coordinated counterattack that fails. On July 4 the a plan is devised to gain access to the interior of the alien mothership in space in order to plant a nuclear missile.