Three sisters, ages 10, 11, and 12, embark on a fourteen day Caribbean Cruise with their parents. Unbeknownst to them, there is a deranged man on board stalking his ex wife. The ship hits a tropical storm, which quickly escalates into a hurricane. The estranged husband attempts to plant plastic explosives on board. Fire ensues, and a desperate evacuation is attempted. The girls get separated from their parents. Now they must survive!