From a remote prison colony in space, a pair of ruthless "Star Hunters" have escaped. Intergalactic predators, they see all life-forms as "game" for their savage sport. Traveling in pairs, one acts as a "lure", the other as a "killer", each half of the pair dependent on the other for survival. A team of college students find themselves the target of the next "game". The chosen playground is a small planet in the Milky Way called Earth.