Jonah Cutter is a master ship salvager, searching for lost treasure under the ocean. Marine archaeologist Calista West has pursued him to Greece, seeking revenge for a past wrong. However, she soon finds herself drawn to him. When Callie discovers what Jonah is really after - the lost city of Atlantis - she must choose whether to leave him or to follow her heart.
When he takes his ex-wife Addison's megayacht in order to search for a valuable wreck, Rydell Case finds himself, along with Addison, tangled up in conspiracy, murder, and an international art heist.