Even where oceans are warm, dark secrets lurk below the surface. Even where breezes are fragrant, trouble floats in the air. Even in the land of aloha, peace can be destroyed.

When a missile plows into a tourist boat, dolphin researcher Kaia Oana is one of the first into the water, risking her own life to help others. When called upon to investigate the incident, Lieutenant Commander Jesse Matthews enlists Kaia and her specially trained dolphins to help--and romantic sparks fly.

As Kaia and Jesse edge closer to the truth about the accident, their own lives are threatened. Will they be able to stop a killer before more lives are lost?