Indominus rex, the untamable king and the first canonical hybrid in the Jurassic Park franchise, whose intelligence and abilities puts Jurassic World in havoc! vs Vastatosaurus rex, the ravager-lizard-king, and the result of the evolution of the famed Tyrannosaurus rex in Skull Island for years without interruption, who became Skull Island's largest terrestrial predator! It's the battle between dinosaurs! in this battle between creatures from natural evolution and scientific revolution! Who is DEADLIEST?

Amy is a zoologist who just happens to have the coolest job imaginable. She works with dinosaurs. As a top care-taker at Jurassic World, she works with several creatures as the park blossoms into one of the world's largest visited amusement parks. Her favorite is possibly the largest -a male Spinosaurus named Seether. She has raised him since he hatched, like many of the other dinosaurs, and she is completely unprepared when the Indominus Rex escapes from its enclosure. She also has raised the Indominus Rex and her sister; with her assistance, Indominus's sister wasn't eaten by her. Now there's two genetic dinosaur hybrids of the lose. Suddenly, Amy finds that not all dinosaurs are ones that she can save.

Ema Gordy, younger sister of Owen Gordy, is chosen to be a tour guide for her boss' nephews. Zach and Gray Mitchell. Little does Ema know, she and Zach have met before. Once, when they were 5. Ema and Zach meet again, but trouble soon strikes. The Indominus Rex escapes its habitat, and put thousands of lives in danger.