Paris, 1941. The City of Light, occupied by the Nazis, is dark and silent at night. But when the clouds part, the silvery moonlight defies authority, and so small groups of ordinary men and women determined to take down the occupying forces of Adolf Hitler. Mathieu leads one of these groups in helping downed British airmen escape back to England. As the German military police heighten surveillance, Mathieu and his team face a new threat, dispatched by the Reich to destroy them all.