<i>First, the virus took Kaelyn’s friends. Then, her family. Now it’s taken away her home. But she can't look back—the life she once had is gone forever.</i> <br> <br>A deadly virus has destroyed Kaelyn’s small island community and spread beyond the quarantine. No one is safe. But when Kaelyn finds samples of a vaccine in her father's abandoned lab, she knows there must be someone, somewhere, who can replicate it. <br> <br>Determined to stop the "friendly flu" for good, Kaelyn and her friends head to the mainland in search of help. They encounter a world beyond recognition. It’s not only the virus that’s a killer—there are people who will stop at nothing to get their hands on the vaccine. <br> <br>How much will Kaelyn risk for an unproven cure, when the search could either destroy those she loves or save the human race?