Jurassic Park 2: The film opens with a family of tourists on the island of Isla Sorna. Their young daughter explores on her own and runs into a baby Compsognathus. When the child attempts to feed the dinosaur, a large pack emerges and attacks the girl for more food. Her parents run to her when they hear her screams, though it is not shown what happens to her, it is later stated that she was injured, but otherwise fine.
Four years have passed since the disaster at Jurassic Park, and John Hammond (Richard Attenborough) has lost control of InGen to his ruthless nephew, Peter Ludlow (Arliss Howard). Despite having signed a non-disclosure agreement about the prior events, chaos theorist Ian Malcolm (Jeff Goldblum) has gone public and revealed details of his experiences at Jurassic Park. Unfortunately for him, his stories are not widely believed, threats of legal action prevent him from producing any evidence, and his academic reputation is destroyed.
Hammond summons Malcolm to his home, where he reveals the existence of Site B, Isla Sorna. Sorna was the facility where the dinosaurs were actually engineered, before being sent to Isla Nublar when mature. The island was abandoned after a hurricane wiped out most of the facilities, and the creatures have been living in the wild ever since. Hammond mentions what happened to the young girl, informing Malcolm that she's fine. However, Hammond goes on to explain that the loss of Nublar and the incident with the girl have all but bankrupted InGen, and so Ludlow plans to bail the company out by exploiting Site B. Hammond requests Malcolm's help in stopping Ludlow and preserving the dinosaurs' natural habitat, by creating a wildlife portfolio that will convince environmentalists to leave the island as a nature reserve. He initially refuses, but after learning that his girlfriend, paleontologist Sarah Harding (Julianne Moore), is already on the island, he goes along.
The team consists of Eddie Carr (Richard Schiff), an engineer who built the custom vehicles the team will use, and documentary producer and environmentalist Nick Van Owen (Vince Vaughn). Shortly after arriving on the island, they find Sarah and escape a Stegosaurus herd. When they return to camp, they find Kelly (Vanessa Lee Chester), Malcolm's daughter, has stowed away. He tries to contact the boat to take them home, but they are interrupted by the arrival of an InGen team sent by Ludlow.
The rival team quickly captures samples of several species, including Parasaurolophus, Stegosaurus, Mamenchisaurus, Gallimimus, Pachycephalosaurus, Triceratops, and a swarm of Compsognathus. That night, Nick and Sarah sneak into the InGen camp to free the dinosaurs and cut the fuel lines on the vehicles. The freed dinosaurs cause a huge commotion, compounded by the exploding vehicles. Soon, Roland's second in command, Dieter Stark (Peter Stormare), was said to never be left in charge.
Meanwhile, Roland Tembo (Pete Postlethwaite), the leader of the InGen team, is hunting for his prize trophy, an adult Tyrannosaurus,by breaking the leg of a young T. Rex so that its cries might lure its parents. When he returns to the camp, Nick frees the baby, taking it back to their trailer so Sarah can set its broken leg. Eddie and Kelly hide in a tree stand called a high hide, while Malcolm returns to the trailer. The adult Tyrannosaurs come searching for their child and, after retrieving it, throws one half of the hinged trailer over a cliff with Malcolm, Nick and Sarah inside. Sarah falls on the glass, almost breaking it. But Malcolm comes down, grabs Sarah's "lucky pack" and Sarah holds on to it. Eddie throws down a rope and tries to pull the trailer back up using one of the SUVs, but is torn in half and eaten by the Tyrannosaur parents. The trailer falls off the cliff, but its occupants survive by holding on to the rope, only to be rescued by the InGen team. With all of the communications equipment destroyed in the attacks, both groups team up to reach the old InGen compound's radio station, right through a Velociraptor nesting site, while Sarah suspects the adult Tyrannosaurs will continue pursuing them.
On the way, Stark goes off in the woods where he is killed by compys. But Carter could not hear Dieter's calls for help. At night, the male Tyrannosaur comes into the group's camp and looks into Sarah and Kelly's tent. One of the InGen team members, Carter, wakes up and notices the tyrannosaur. His shouts awaken the other group members and they all run, with the Tyrannosaur in pursuit. Tembo tries but fails to shoot the Tyrannosaur, finding his ammunition disabled by Nick. Carter is crushed underfoot and the group separates in the chaos. Nick, Sarah, Kelly and another InGen team member, Dr. Robert Burke, take refuge in a small cave behind a waterfall. The Tyrannosaur puts its head inside but cannot spot them since they are all standing still. However, Burke discovers a coral snake slithering on him and tries to run out
i got it from wikipedia sorry its so long =D