Au XXI siècle, le vaisseau spatial Ikarios, dont l'équipage est cosmopolite et multiculturel, mesure le vide intergalactique. Les ordinateurs interceptent soudain un étrange signal extraterrestre : c'est une pluie d'astéroïdes s'abattant sur l'Ikarios, ce qui prive ce dernier de toute communication avec la Terre.
Troy Holloway, un ingénieur spatial, se retrouve dans une situation terrifiante : sa capsule de sauvetage dérive tout droit vers le Soleil. La Commandante Roberts, une voix désincarnée provenant d’un faible signal radio, est le seul lien qui lui permet de garder la tête froide avant qu’une équipe de secours ne vienne le sauver. Sa course contre le temps commence…
The film follows the adventures of Murat (Arkın) and Ali (Akkaya), whose spaceships crash on a desert planet following a battle, shown by using footage from Star Wars as well as Soviet and American space program newsreel clips. While hiking across the desert, they speculate that the planet is inhabited only by women. Ali does his wolf whistle, which he uses on attractive women. However, he blows the wrong whistle and they are attacked by skeletons on horseback, which they defeat in hand-to-hand combat. The main villain soon shows up and captures the heroes, bringing them to his gladiatorial arena so they can fight. The villain tells them he is actually from Earth and is a 1,000-year-old wizard. He tried to defeat Earth, but was always repelled by a shield of concentrated human brain molecules, which looks like the Death Star from Star Wars. The only way he can bypass this impenetrable defense is to use a human brain against it. The heroes escape and hide in a cave full of refugees who already fled the villain's tyrannical rule. Murat develops a romantic connection with the only woman there (Uçar), who looks after the children. (The romance is shown through many long eye-contacts and smiles from the girl, but nothing more.) Zombies of the dark lord attack the cave and turn several of the children into zombies, their blood used to renew the evil wizard's immortality. The three then flee the cave and find a local bar, lifted directly from Star Wars (the Mos Eisley Cantina). The two men quickly get into a bar brawl, but the villain suddenly appears and captures them again.
Dans la campagne de Morino, un paysan est témoin de l’atterrissage forcé d'un vaisseau spatial dans un champ. Suite à une mauvaise manœuvre, des extra-terrestres ont dû se poser sur la Terre. Le professeur de physique Solmi, accompagné de sa fille Luisa, son gendre, quelques techniciens et d'espions orientaux, se rend sur le lieu du crash. Au fond du gouffre, le groupe d'humains découvre un astronef et ils sont aussitôt pris en otages par Kaena, le cheffe des aliens, qui les force à le réparer. Une fois chose faite, le vaisseau redécolle avec à son bord les terriens kidnappés par Kaena et les extra-terrestres. Leur destination n'est d'autre que leur planète Hydra.
Dr. Fred Steele (Umberto Orsini) and Eve Barnett (Maya Brent) work together at an astronomical station on a bucolic island. Steele has just had his request for a transfer approved, and he and Eve look forward to leaving the island and getting married. However, their budding romance is quickly put on hold as the station's scientists learn they must deal with a rogue planet—"The Outsider"—that has entered the solar system, and which is on a collision course with Earth. The brilliant but cantankerous Professor Benson (Claude Rains), living in an adjacent greenhouse with his dog Gideon, predicts that the Outsider will not strike the Earth but will simply make a close pass—a prediction that no other scientist will endorse. Meanwhile, a military base on Mars encounters the stray planet on its approach to Earth, and Commander Robert Cole and his wife Cathy quickly travel to the island outpost from Mars to help with the effort.
Un groupe de scientifiques embarque dans un immense et puissant vaisseau spatial appelé Nightflyers dans le but de rechercher un mystérieux engin extraterrestre ayant rapport avec la survie humaine sur Terre, avant d’être victime d’une cruelle machination lancée par l’ordinateur de bord…
In the past eleven years of "The Second Bug War", the Mobile Infantry has improved their weapons and tactics. However, as they adapt, so do the Bugs, and many new Arachnid variants have developed. The United Citizen Federation now finds itself engaged in trench warfare on the frontier planets. The Federation puts a positive spin on this in the media while using its judicial and military authority to suppress peace protesters and religious fanatics as seditionists.
A huge solar flare is predicted to irradiate the Earth. Astronauts aboard the spaceship Helios must go to the Sun to drop a bomb equipped with an Artificial Intelligence (Freddy) and a Japanese pilot (as a backup if the Artificial Intelligence fails) at the right time so the flare will point somewhere else. Giant IXL Corp CEO Teague thinks the flare will not happen and wants the mission to fail so he can buy the planet cheaply while the scare lasts. Employee Haas prepares a surprise for the astronauts. While Steve Kelso commands the space ship where temperature rises, Steve's father Admiral 'Skeet' Kelso is searching the desert for Steve's son Mike who has gone AWOL to say goodbye to his dad but who inadvertently crossed the path of the guys from IXL after meeting desert-dweller Travis.
In 1967, two young friends, Stas and Andrei, arrive to the newly built Star City (near Moscow) where the first cosmonauts trained to go into space, and where a race against the clock to beat the Americans into space takes place.
In a distant galaxy, a starship searches for the evil Count Zarth Arn. Closing in on a planet, the ship is attacked by a mysterious weapon (a red blobby field) which drives the crew insane. Three escape pods launch during the attack, but the ship crashes into the atmosphere of the planet and is destroyed.
In the future world of 1980 the United States Air Force's Space Exploration Wing has bases on the moon and is on the eve of a mission to Mars. When yet another of their Pegasus spacecraft with its two-member crew mysteriously disappears leading to rumors among the ranks of "space monsters" and "phantom planets", Mars mission pilot Captain Frank Chapman and his navigator Lt. Ray Makonnen are sent to investigate in their own Pegasus craft.
As the world awaits the return of a crew of astronauts from a deep space mission, a young woman named Thelma Joyce appears on a television talk show to discuss caves. Soon after her interview begins, Thelma has a horrible psychic vision. After the spacecraft returns to Earth missing its occupants, a girl on a beach discovers a weird, blue, pulsating rock. Her mother soon finds her with her face ripped off.
On a planet inhabited by Arachnids, a squad of soldiers find themselves pinned down and surrounded on all sides by Arachnid forces—even with their new laser gun technology and assistance from psychic soldiers, the Arachnid assault overwhelms them. General Jack Shepherd (Ed Lauter) decides to make a last stand with four of his best soldiers to allow the majority of his surviving troops to escape. The plan works and the soldiers escape, including Sergeant Dede Rake (Brenda Strong), psychic Lieutenant Pavlov Dill (Lawrence Monoson), Private Jill Sandee (Sandrine Holt) and her lover Private Duff Horton (Jason-Shane Scott), and Private Lei Sahara (Colleen Porch). Despite reaching relative safety, the team is whittled down by deadly storms and arachnid ambushes—including the only member of the platoon with a radio, Corporal Thom Kobe (Brian Tee). Lieutenant Dill is unable to command his soldiers as he receives traumatic visions of utter annihilation. He takes his anger out on Private Sahara, who is revealed to have been psychic but lost reliable control of her psychic abilities during puberty.