In May 1997, when worldwide media showed footage of an adult tyrannosaur rampaging through San Diego, humanity realized that dinosaurs once again walked the Earth.
It soon learned that there was an entire ecosystem thriving on an island off the coast of Costa Rica, Isla Sorna, and that this miracle was due to advances in genetics by the InGen corporation, founded by John Hammond.
Despite a speech in which he encouraged to not disturb this lost world, Hammond couldn't prevent the public opinion from taking an interest on the island while InGen, weakened like never before, was on the verge of bankruptcy.
Faced with the insufficient means provided by the United Nations to monitor the island and fearing for the future of his legacy, Hammond summoned one of his closest friends, the Indian billionaire Simon Masrani.
Just before he died, he bequeathed him InGen and asked him to find a way to protect the prehistoric fauna of Sorna from outside interferences.
At the dawn of the 21st century, Masrani turned his attention to another Costa Rican island owned by InGen, Isla Nublar.
Abandoned since the escape of the dinosaurs of Jurassic Park, no one has returned there for years but Masrani had big plans for the island...