In their new overseas home, an American family soon finds themselves caught in the middle of a coup, and they frantically look for a safe escape from an environment where foreigners are being immediately executed.
When a team of explorers ventures into the catacombs that lie beneath the streets of Paris, they uncover the dark secret that lies within this city of the dead.
A television reporter and her cameraman are trapped inside a building quarantined by the CDC, after the outbreak of a mysterious virus which turns humans into bloodthirsty killers.