The planet Sanguis-VII is an inhospitable world in the process of terraformation. Its moon, Sepulcrum, on the other hand, is perfectly suited to human life, and the Weyland-Yutani has set up a colony for the terraformers. Unknown to them, though, the higher-ups have also set up a division of their bioweapons division on the moon in an underground facility. Three weeks ago, containment failed, and their bioweapons escaped. Unfortunately for every human on Sepulcrum, these weapons are Xenomorphs.
Now a contingent of United States Colonial Marines has been deployed to "clean up" the mess. But unknown to them, another race has come to hunt...
