San Drad, California, has been overrun by the Aliens, and the cybernetically-enhanced Major Dutch Schaefer and Lieutenant Linn Kurosawa have been abandoned by their superiors and are cornered by a swarm of the Alien drones. Before they can be killed, a pair of the Predators appear and destroy the Aliens. The Predators offer an alliance with the two humans in order to stop the Alien infestation.