The professor and the expressive rich man persuades several paleontologists to go with him to an island near the coast of Costa Rica, where he organized a real prehistoric park of the Jurassic period. In this park are found the most real ancient animals - dinosaurs of all kinds, created with the help of genetic engineering, which will become the real highlight of the program of the new attraction. When there are only a few days left before the opening of the park, one of the employees violates the security system. This leads to the fact that after a thunderstorm rain the protection system is de-energized and the dinosaurs are free, where they begin a real hunt for weak people. Who will be able to win this fight - people or dinosaurs?