Paleontologist Dr. Terry Carlson has spent her career unearthing the past to bury her own.

 

On a routine dig in rural South Dakota, an accident fractures a sealed chamber and uncovers the impossible. ​

 

Below the surface lies a thriving relict ecosystem. In a cavern hidden by time, evolution kept moving. At the top of the food chain is a winged apex predator that was never meant to survive. ​

 

When a violent storm traps the team underground, the fossils stop being specimens and start hunting. ​ In the dark, science is useless.

 

Survival is all that remains in this high-stakes thriller that blends the biological awe of Jurassic Park with the relentless, trapped-in-the-sand terror of Tremors.