Aliens crash land in a small farming community only to encounter a young man and change his destiny.
In the future, genetic diversity in humans is non-existent in favor of strict scientific control. Natural procreation is shunned in favor of baby factories that produce perfect people. The common diseases and defects that plagued humanity for thousands of years have disappeared. People live longer and enjoy fuller lives through amazing technology. But the artificial utopia succumbs to a hidden risk a plague decimates entire populations of genetically similar people. Scientists are caught off guard at the rapid proliferation of the disease. They are at a loss to a cure and turn to a radical solution: go back in time to the most genetically diverse period in human history and collect genetic material from subjects that are immune to the plague. They have come for us.