A jet plane goes down in Caribbean waters during a violent cyclone.  Most of the passengers die violently or drown in the chaos, but the few survivors that remain, including Carroll Baker and Olga Karlatos, are rescued by a group in a smaller boat.  Lost at sea, the survivors hope for rescue but, as the days and nights pass by, they succumb to the heat and lack of food and water.  Dying one by one and surrounded by man eating sharks, this group must fight to survive...even if that means resorting to cannibalism to stay alive!