The Comtesse de la Vallire, a spy of Chauvelin, has known for sometime Percy is the Scarlet Pimpernel and when she hears one of her friends, an imprisoned leader of the revolution, is to be executed by the Committee of Public Safety, she enlists his help. He dressed as a blind man and she as a flower woman try to save the prisoners in an event known as the September massacres but only 30 are saved and her friend has already been executed.