Spliced in a lab. Grown in a field. An apocalyptic harvest.For decades scientists have used viruses and bacteria to insert rogue genetic code into our food. Now human DNA is mutating. Is this the next step in evolution or our extinction? Some will commit suicide; others will become homicidal maniacs.One family.A mother in the custody battle of her life.A college graduate whose experiment foreshadows a grisly futureA teen whose final exam won't be in English but in survivalSeparated by miles.Desperate to reunite.When all hell breaks loose, every block is a gauntlet.