Meet the world's first 'cyborgs' - a quadriplegic, a blind man, an amputee, a bio-hacker, and a woman with Parkinson's - the scientists who help them, and one entrepreneur who will stop at nothing on his quest to unlock the brain.
A young newlywed couple find themselves trapped in a network of underground caves. With her husband injured, the new bride is forced to find her way back to the surface in order to save his life. In the process, they discover a terrifying truth about the "underneath", they are not alone. Something evil is hunting them.