Long, tall, and deadly Morgan Kincaid enjoys her job at Treasure Hunter Security. Raised by a tough Marine father, she loves her guns and knives, and never backs down from a fight. She's yet to find a man who can keep up with her and after a string of first dates, she's not feeling hopeful. Assigned to an underwater archeological expedition on the trail of a long-lost shipwreck, Morgan finds herself protecting the very hard, delicious body of a certain globe-trotting archeologist. A smart rogue with a wide smile and a boat-load of charm.

Dr. Zachariah James has information leading to a shipwreck filled with history and treasure. After growing up with nothing, he's forged a stellar career for himself, but history is more than just a job, it's his lifeblood. So Zach is amazed to find himself as excited by a woman as he is by his dive. Dangerous Morgan fascinates him, and he's eager to see what she's hiding under her tough exterior.

As they dive the azure waters off the coast of Madagascar, they uncover a sizzling attraction and clues to an impossible artifact, but soon they are under attack by dangerous black-market thieves. Among betrayals, kidnappings, and ancient temples, Zach and Morgan will need to put everything on the line to have any chance at surviving.