Trouble is brewing in the Seven Kingdoms of Westeros. For the driven inhabitants of this visionary world, control of Westeros' Iron Throne holds the lure of great power. But in a land where the seasons can last a lifetime, winter is coming...and beyond the Great Wall that protects them, an ancient evil has returned. In Season One, the story centers on three primary areas: the Stark and the Lannister families, whose designs on controlling the throne threaten a tenuous peace; the dragon princess Daenerys, heir to the former dynasty, who waits just over the Narrow Sea with her malevolent brother Viserys; and the Great Wall--a massive barrier of ice where a forgotten danger is stirring.

First aired: 2011-04-17