The captured by the Turkish Zaporozhean Cossacks dream to break from bonds. The rumours about this get to the sultan. He changes and creepingly infiltrates into the Cossacks settlement, where he was met by Ivan Karas’. The sultan invites Ivan to the palace. The sly Karas’, though he had a drop in his eye, peers to everything and notices verything. And when the time has come, thanks to his watchfulness and deftness the Cossacks have recovered their liberty.