An asteroid straying close to Earth becomes the subject of an experiment. It is decided to scout the asteroid with a view of turning it into a mobile space station. If not the rock must be destroyed.
McCauley takes a mission to Skyra, an asteroid that has taken up orbit around Earth. he must either determine if it's suitable to use for a space station, or destroy it. However, when a scientist is blinded and left behind, McCauley must return and stop the countdown before it's too late.—Gislef