Earth has been destroyed.Which alien race had committed genocide, killing a planet in the process?The Kandemir were interested in salvage rights.The Xo had provided two Earth nations with weapons that could do the job.The Vorlak, an essentially peaceful race, nevertheless had made a firm treaty with the Russians.The only surviving humans were the astronauts aboard the spaceships Benjamin Franklin and Europa. Men and women together, they would re-establish mankind - but first they must unmask their enemies and defeat them.