 John Hammond has developed a dinosaur park (in a very remote Island) using a DNA of a prehistoric dinosaur taken from an ancient insect. In a tour that Hammond makes to a selected audience which suppose to decide whether the park is safe or not safe for public, the security system collapsed, and the dinosaurs set themselves free. Now the selected audience, in the leadership of Doctor Grant and include Doctor Malcolm, Doctor Sattler, Hammond s grandchildren, and some more has to survive in the Island.