Oilman Paul Sturges' idyllic family vacation turns into a living nightmare when they encounter a gigantic megalodon shark that will stop at nothing to protect its territory. Stranded and under constant attack, Paul and his family must somehow find a way to get back to shore alive before it strikes again Paul Sturges' idyllic family vacation turns into a living nightmare when they encounter a gigantic megalodon shark that will stop at nothing to protect its territory. Stranded and under constant attack, Paul and his family must somehow find a way to get back to shore alive before it strikes again.