Twilight's Last Gleaming (1977)

After a failed assassination attempt, a soldier finds himself stranded in the desert. Exposed to the elements, he must survive the dangers of the desert and battle the psychological and physical toll of the treacherous conditions.

When rogue stealth-fighter pilot Vic Deakins deliberately drops off the radar while on maneuvers, the Air Force ends up with two stolen nuclear warheads -- and Deakins's co-pilot, Riley Hale, is the military's only hope for getting them back. Traversing the deserted canyons of Utah, Hale teams with park ranger Terry Carmichael to put Deakins back in his box.

When a train carrying atomic warheads mysteriously crashes in the former Soviet Union, a nuclear specialist discovers the accident is really part of a plot to cover up the theft of the weapons. Assigned to help her recover the missing bombs is a crack Special Forces Colonel.

While on a fishing trip, Harry Baldwin and his family hear an explosion and realize that Los Angeles has been leveled by a nuclear attack. Looters and killers are everywhere. Escaping to the hills with his family, he sets about the business of surviving in a world where, he knows, the old ideals of humanity will be the first casualties.

Post-apocalyptic survivors find refuge in the Rocky Mountains to hide from giant, insect-like creatures that can't live above 8,000 feet. However, when one of them needs life-saving supplies, they risk it all to venture into the danger zone.

When Environmental Protection Agency inspector Steve Malone travels to a remote military base in order to check for toxic materials, he brings his family along for the ride. After arriving at the base, his teenage daughter Marti befriends Jean Platt, daughter of the base's commander, General Platt. When people at the base begin acting strangely, Marti becomes convinced that they are slowly being replaced by plant-like aliens.

The Gardner family moves to a remote farmstead in rural New England to escape the hustle of the 21st century. They are busy adapting to their new life when a meteorite crashes into their front yard, melts into the earth, and infects both the land and the properties of space-time with a strange, otherworldly colour. To their horror, the family discovers this alien force is gradually mutating every life form that it touches—including them.

A young boy finds himself pursued by two assassins in the Montana wilderness, with a survival expert determined to protect him, and a forest fire threatening to consume them all.

Based on the book "UFO Crash at Roswell" by Kevin Randle and Donald Schmitt, Roswell follows the attempts of Major Jesse Marcel to discover the truth about strange debris found on a local rancher's field in July of 1947. Told by his superiors that what he has found is nothing more than a downed weather balloon, Marcel maintains his military duty until the weight of the truth, however out of this world it may be, forces him to piece together what really occurred.

16-year-old Cassie Sullivan tries to survive in a world devastated by the waves of an alien invasion that has already decimated the population and knocked mankind back to the Stone Age.