Mack and his friends are hanging out on the beach when one of them disappears in the waves - only to reemerge with gills lining her neck. One by one, the teenagers develop aquatic features never before seen on humans. But Mack, the last one to transform, suspects that something is not quite right. Surely, magic like this cannot come without dire consequences.
Ventro Corporation watches over every second of every individual's life. Resistant, a group of revolutionaries, is organizing a rebellion right under Ventro's nose. Meanwhile, the 13-year-old narrator and his father have come into possession of a secret file that could help the rebels spell Ventro's end. Can he deliver the information to the rebels, despite Ventro tracking his every move?