When Fidel Castro took over Cuba (about 1961), all the Casino owners from Cuba escaped to USA, but they didn't take all their money with them. Some men from the US NAVY hid some money on an Island near Cuba, and they would get back to the Island later. A return happens 30 years later, and then they have to deal with modern pirates in the search for the old treasure. But the movie isn't perfect at all, I will give it 5/10 as a movie you just watch.