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!