Desc: Zelazna reka: Directed by Ryszard Ber. With Jerzy Kryszak, Krzysztof Jasinski, Krzysztof Kolberger, Wojciech Alaborski. The year is 1575 when Transylvanian prince Stefan Batory sends his loyal servant, Szymon Mroczek, to Warsaw. The mission is to gain support for him to become the next king of Poland.