Jurassic Park

About the film

Contains story spoilers.

Jurassic Park begins in Montana, where paleontologist Alan Grant and paleobotanist Ellie Sattler are working at a dig. Their research is threatened by a lack of money until wealthy entrepreneur John Hammond offers to fund it in exchange for their approval of his new project. He takes them to Isla Nublar, an island west of Costa Rica, where he has created a biological preserve and theme park. They travel with mathematician Ian Malcolm, whose work concerns chaos theory, and lawyer Donald Gennaro, who represents Hammond's investors. The visitors expect to inspect a commercial attraction. Instead, the island presents them with living dinosaurs, and their first encounter with a brachiosaurus makes the impossible project suddenly physical.

Hammond explains that his scientists have extracted dinosaur DNA from mosquitoes preserved in amber and filled gaps in the genetic code with frog DNA. The lab can produce eggs and hatchlings, and the park's managers claim they control the population by making every dinosaur female. Malcolm doubts that any complex living system can be kept within the limits its designers set. Grant is fascinated by the animals, while Ellie is interested in what their existence means for paleontology and ecology. Hammond's grandchildren, Lex and Tim, join the park tour, and the guests board electric vehicles designed to move along a fixed track. The tour is supposed to prove that the park is safe enough for investors, but the system's reliance on automation becomes a central weakness.

Dennis Nedry, the computer programmer responsible for the park's systems, has secretly arranged to steal embryos and sell them. During a tropical storm, he disables security controls so that he can reach the dock and deliver the stolen material. His sabotage cuts power to the electric tour vehicles and disables the electric fences that keep the dinosaurs in their enclosures. The Tyrannosaurus breaks out while Grant, Malcolm, Lex and Tim are stopped in their cars. Malcolm is injured, and Grant escapes into the island with the children. The park's technological display of control collapses at once: the visitors are no longer moving through a managed attraction, and the animals are not behaving like exhibits waiting for a button to be pressed.

Grant tries to keep Lex and Tim safe as they travel through the park's terrain. They hide in trees, move through the visitor facilities and encounter smaller dinosaurs as the storm and darkness make it harder to see what is nearby. The children respond differently: Tim is excited by dinosaurs and has to be protected from his own curiosity, while Lex is frightened but becomes increasingly resourceful. Grant, who has spent the film insisting that children are a nuisance, becomes responsible for them. His practical skills as a field scientist matter more than his ability to recite facts. He has to watch the animals, choose routes and keep the children moving rather than assume that the park's technology will do it for him.

Ellie joins game warden Robert Muldoon to restore power and search for the missing visitors. They encounter the raptors, intelligent predators that can test barriers and coordinate their attacks. Muldoon knows their habits but is killed while trying to deal with them. Ellie restores part of the electrical system, allowing the fences to return, but the system's recovery does not solve every problem. Grant and the children eventually reach the visitors' centre, where they reunite with the others. Hammond, meanwhile, has been forced to recognise that the park cannot be opened safely as planned. The control room and its computer displays offer no dependable refuge when the animals can move beyond the zones the humans assigned to them.

The surviving group is attacked by raptors inside the visitor centre. Tim and Lex hide in the kitchen, using the room's counters and doors to stay out of reach, while Grant and Ellie attempt to protect them. The children use their quick thinking to keep the raptors at bay long enough for everyone to escape into the main hall. As the group is cornered, a Tyrannosaurus enters and attacks the raptors, allowing the humans to flee. They reach the helicopter and leave the island. The rescue comes from an encounter between animals rather than from a final act of human control. Hammond escapes by helicopter with the survivors, left to reckon with the failure of his enterprise, while the survivors carry the evidence that the park was never the contained wonder he promised.

Steven Spielberg gives the park a clear geography before turning it into a trap. The arrival route, tour vehicles, laboratories, fences and visitor centre establish how the attraction is meant to function. That orientation makes it easy to understand what breaks when Nedry sabotages the systems. The dinosaur encounters are also paced around changes in visibility and sound. The Tyrannosaurus sequence builds suspense from rain, shaking water and the stillness of the animals before the attack; later scenes use darkness and restricted rooms to make the raptors feel close. John Williams's score supports wonder when the dinosaurs first appear, then the same creatures become sources of danger. The emotional shift comes from how the humans relate to them, not from a change in the animals' scale.

Jurassic Park's central conflict grows from Hammond's belief that technical achievement can make living creatures predictable. The park can produce dinosaurs, display them and route visitors around their enclosures, but it cannot guarantee how the animals will behave or how the systems will fail. Malcolm articulates the risk, while the events demonstrate it through the weather, Nedry's actions and the animals' movement. The story keeps this idea tied to people: Hammond wants to share a spectacular creation, Grant has to protect children he did not expect to care for, and Ellie takes responsibility for restoring power. The escape does not solve the scientific or commercial questions around the project. It leaves the audience with a clear image of a wonder that cannot safely be reduced to an attraction.