It's been 300 years since humanity has fled from the Ai that destroyed Earth withnuclear weapons. Most of the humans that remain live underground, in the cavernsof Mars. A small band of specially chosen soldiers is given a mission to reclaim Earth, to see if it's fit for colonization. They've trained their whole lives for this mission.Still, nothing in the cosmos could possibly prepare them for what they are about tounearth.The human brain can only fit so much stuff in it, so instead of learning a little bitabout a bunch of topics, they chose a bunch of soldiers and make them learn alot about a smaller number of topics. As a unit, this made them stronger... But ifsomeone died, that knowledge died with them.People thought that meeting intelligent life would bring peace. They were wrong.When the soldiers landed on the planet's surface to investigate something thatshould not be flourishing human settlements. The squad encounters very bad anddangerous circumstances and suddenly survival became the most requested need.