A priceless biotechnology, an FBI agent, and an unspeakable act of familial betrayal collide in a tropical kidnapping more twisted than a DNA double helix. When a renowned scientist with a solution for global warming is kidnapped at sea, FBI Special Agent Tara Shores must unravel a high-tech trail of S.O.S. messages encoded into the DNA of living cells. As each decoded message brings Tara nearer to the missing genius, it also takes her farther from help than she ever thought possible.