In the 16th-century Ukraine, the Polish overlords and Ukrainian cossacks fight for control of the land but frequent Turkish invasions force them to unite against the common Turkish foe.
Just after he turns 16, Robert finds out that he is adopted, and his parents find to their horror that he was kidnapped from his real parents. They decide to tell him about this, although they fear that they might lose him. Robert runs away to find his real parents. He finds and gets close to them without revealing his true identity. Eventually, he must decide where he belongs.