On the surface, a solar power plant in the Nubian Desert seems unremarkable, but a subterranean wing of the facility is the unconventional setting for a bold medical experiment. Using cloned Neanderthals as a genetic Rosetta Stone, scientists are attempting to decode – and potentially cure - human afflictions such as osteoporosis, schizophrenia and others.

When discovery of an unusual pregnancy at the base - coupled with rumors of a shadowy organization infiltrating their ranks - threaten to derail their plans, base commander Sandra Blackmore sends an SOS to famed biologist Dr Tyson Moore.

It's an invitation Moore accepts - then quickly regrets - as he arrives at the base in the wake of a shooting massacre that killed most of the staff. Unsure if survivors can be trusted, he is thrust into a race against time to solve an impossible riddle, a task that grows exponentially when the facility’s alpha clone escapes confinement. Pitted against the powerful Neanderthal in a deadly cat-and-mouse game, he will need all his wits to survive.

Then, as events head for a climax, Moore uncovers a conspiracy that stretches into the upper echelons of power, with stakes much higher than he could have imagined. In the end, he’ll be faced with a choice that could affect all of mankind.