Former military diver, Holden Cameron, was addicted to the adrenaline rush of active duty and the last thing he wants is to babysit a family of thieves on a tropical island. But his new job requires him to investigate suspicious activity surrounding a Donnelly dive to the wreck of a pirate ship.

When equipment, treasure, and even divers begin to disappear, Kate and Holden form an uneasy alliance to uncover the truth. But the deeper they plummet into the mystery, the closer they come to each other. Soon they are sharing their deepest fears and darkest secrets—and a combustible chemistry too hot to ignore.