Far away, in the desolate Serbian wilderness, a U.S.-led fracking crew uncover a dormant monster gestating inside a centuries-old French soldier. Now awakened and exposed in its most dangerously fragile state, it tears through the men on the grounds in search of a new womb.

A small US Army unit must rescue French political prisoners from a castle. Despite mutual disdain between rescuers and elite prisoners, they're forced to unite against surrounding SS troops.