Prologue

2114, the first colony on Mars was established.

2120, interstellar travel had been perfected.

2133, mankind spread its influence throughout the stars, colonizing planets lightyears away.

2142, we found out we're not alone in the universe.

Now, a band of soldiers, sailors, airmen, and marines, cut off from reinforcements, must unite to survive the most horrifying enemy mankind has ever faced.