The Greystones are smart and successful marine biologists. Together with their children, Annabelle, 12 and Beck, 3, they are a family born to the sea. Their lives get turned upside down when on the beach one afternoon young Beck drowns in the ocean. This tragic event forces open cracks in the Greystone marriage, resulting in an eruption of professional jealousies, insecurities and desperate need as they sink to the bottom of their grief… and then rise up again, when an unexpected treasure provides the answer to their healing.