The husband of a terminally ill Claudia falls in love with a neighbor, Marisha, who helps him with the housework in the absence of his wife. And a year and a half later, Claudia returns from the hospital.

Somehow, three came to these lands to the camp of ataman Sidor. One of them recently escaped from Turkish captivity, where from the centurion dying on his hands, he learned about a chest hidden in these places with the Ryazan treasury. The Cossacks, having conferred, decide to go in search of her, but the Turks are already looking for the treasury, who once hid her here.