Haunted by tragedy, all Chloe Gietz wants now is to be left alone. But when an unexpected dilemma arrives at her doorstep, she must return to the one place where her nightmares began: the dangerous, crushing depths of the Arabian Sea. The deadly marine organisms are back—and they’re out in force. After a US Navy salvage operation goes horrifically wrong, a multinational task force is deployed. Their orders: wipe out these genetically engineered creatures from the world’s oceans. Yet all is not what it seems, for evil lurks not just in the deep, but on the surface as well. Chloe and her allies must do all they can, for humanity’s very survival is now at stake.