During the Reign of Terror a resourceful Englishman leads a secret league that uses disguises and daring schemes to smuggle threatened aristocrats out of a besieged city, taunting revolutionary authorities with a red floral emblem; parallel scenes follow the rescuers’ social life and a married woman’s discovery of her husband’s double identity, while an official investigator closes in, producing captures, escapes, traps, and a final perilous flight toward safety.