1775 Catherine the Great had just victoriously ended the war with the Porte and pacified the rebellion of Emelyan Pugachev. But a new rebellion is brewing in the Zaporozhye Sich, which is being prepared by the Koshevoy Ataman with his Turkish and Crimean allies. Europe is also uneasy: relations between France and England worsened with the beginning of the United States' struggle for independence. A special mission fell to the lot of the Russian agent Alexander Zodich, operating in Paris and other countries under the name of Baron de Verdun. His courage and prudence helped save the life of the Russian commander Count Orlov-Chesmensky, bloodlessly resolve the issue of the dissolution of the Zaporozhye Cossacks and strengthen the position of his native power in the Crimean Khanate and Poland. But the great French playwright Beaumarchais suspected that he was dealing with a Russian confidant. And Zodich can only go all-in!..