Catastrophe looms as dinosaurs live among humans in a volatile world, and heroes — both old and new — unite once more for a thrilling adventure.

An 11-year-old vows to help a new neighbor who he suspects is in danger, and documents his efforts in a series of written entries and audio recordings.

When a theme park's newest and deadliest dinosaur gets loose, an animal behavior expert and an executive race to contain chaos across the island.