Fan Casting A Song of Ice and Fire

There are three principal story lines in the series: the chronicling of a dynastic civil war for control of Westeros among several competing families; the rising threat of the Others, who dwell beyond an immense wall of ice that forms Westeros' northern border; and the ambition of Daenerys Targaryen, the exiled daughter of a king who was murdered in another civil war fifteen years before, to return to Westeros and claim her rightful throne. As the series progresses, the three story lines become increasingly interwoven and dependent upon each other.