Alice and Marvin Melnick make history by becoming the first married couple in outer space in a special NASA program to commercialize space travel. They live aboard a space station and, while indulging in what they think is a video game about conquering the world, actually launch real weapons of destruction against cities in the Middle East and causing war to break out on Earth. Meanwhile a UFO is positioned nearby manned by hostile aliens who plan to attack the space station and subjugate the populations of Earth while the planet is at war and vulnerable.