Humanity is on the brink of extinction after a catastrophic war with the Partials—engineered beings identical to humans. A weaponized virus has decimated the population, leaving only tens of thousands huddled on Long Island.

Sixteen-year-old Kira is determined to find a solution. As she desperately tries to save what remains of her race, she uncovers secrets about the war's origins she never imagined.

The survival of both humans and Partials rests in her hands. But in a world where right and wrong depend on one's point of view, can Kira find the answers before it's too late?