Earth is at war with alien invaders. After society is thrown into chaos, and governments fall, corporations take over. To the rebels, their unjust tyranny makes life on Earth that much harder. The Sentry Corporation starts to unleash their humanoid warriorbots, meant to fight the interstellar ground war, to keep civilians in line. Dr. Stein, the leader of the rebellion has plans to reach autonomy. This is the fight for liberation, but the war is just beginning.