With freedom, comes choice. Dr. Meghan Forester’s dream has finally come true. A vaccine for the deadly Makanza virus is spreading throughout the world. Borders are open. The Kazzies are free.

But just when happiness and hope are infiltrating society, Meghan’s world comes tumbling down. Davin’s first love reappears. The Kazzies are incessantly harassed. A young girl falls gravely ill.

Now, more than ever, Meghan knows she has a job to do. Only a cure will solve the relentless problems that have plagued the world since the First Wave. But just when a cure is within her grasp, a shattering event threatens to end it all.