After a power-hungry dinosaur from outside the valley attacks the king of dinosaurs by surprise, a young T-Rex escapes and begins to train, vowing never to return until he is the biggest and bravest in all the land.
Grazie al DNA fossilizzato nell'ambra, John Hammond riporta in vita diverse specie di dinosauri e crea Jurassic Park, un parco a tema su un'isola in Costa Rica. Ma quello che sembrava un sogno diventa rapidamente un incubo.
A genetically manipulated and very hungry dinosaur escapes from a bioengineering company and wreaks havoc on the local desert town. A security guard and a girl environmentalist try to stop both it and the company's doomsday bioweapon.