Injured during a mission in the Caucasus, Sergeant Frank Braffort returns to Paris after six years abroad. He discovers a changed city, one ruled by Prefect Beauregard. Braffort discovers that a series of mysterious events, anomalies that no one can explain, are taking place throughout the city. Giving rise to events that will change Braffort's life forever Meanwhile, a new species of creature begins to emerge, robotic beings that take on human form.

In a basement in Montmartre, Brafford regains consciousness. As he struggles to remember what has happened to him, a powerful explosion rocks Paris and a new monster emerges, bent on destroying the city...