basically the dinosaur went extinct for 65 Millon years then they decided to create the new Isla numblar name Jurassic world which was the time that they were ok and after the place was abandoned all the dinosaurs were sick and infected by a unknown virus but they decided that they build a robot t rex which have more strength at all and was only available to kill indominus rex after indominus rex died robot rexy escape but left the human at the end but realised that they escaped after they escaped rexy craft crashes the elevator the end