In the year 3100, Robotic Humanoids called Halos, appeared on Earth. They assisted in the prosperity of people on Earth, and doing tasks that would otherwise be dangerous. Then 20 years later, everything changed. They destroyed military and government forces and buildings, crippling humanities chances of fighting back. Anyone who resisted was terminated. 5 years later, 90% of human life on Earth are extinct. Only a handful of groups are able to fight back, one of those being the Nova Prime Resistance. They fight in hopes of freeing Earth from the clutches of the Halos.