Lake Vostok. Buried under miles of glacier for thirty million years, it's never been seen, or contaminated, by humans. But when a drilling team brings up core samples of the pristine water, an ancient being trapped for millennia is released. The creature is deadly. The creature is hungry. Good thing the creature is microscopic. But it won't be for long...

A team of scruffy drillers. A coterie of scientists. A newly-arrived doctor with a secret agenda. An engineer/handyman who may well be the key to everything. What can any of them do, trapped at the bottom of the earth and surrounded by ice and cold and darkness? Who will survive in this Hell Below Zero?