Based on a true story, this mix of "Jaws" and "The Blair Witch Project" follows a young couple (Blanchard Ryan and Daniel Travis) whose Caribbean vacation becomes a nightmare when they're left behind while scuba diving. Miles from shore and without food and water, the two struggle to stay alive and wait for help in shark-infested waters. 81 min. Widescreen (Enhanced); Soundtracks: English Dolby Digital 5.1, DTS 6.1; audio commentary; featurette.