A father trapped in a terrible underwater accident. A son desperate to do something-anything-to save him. A digital read-out ticking down toward certain death-and a fate more horrible still... // For Alan Rockaway, his teenaged son Jeff, and Alan's new bride, Jenny, it's been little more than a fascinating tourist submarine excursion, a leisurely end to a weeklong church-couples' cruise. Then the horrifying crash and the plunge toward the unknown... // Everything Alan has assumed about himself, about what awaits him in the future, is flipped upside down. In the ultimate rescue operation, life or death is just the beginning!