Game of Thrones is an HBO series that tells the story of a medieval country's civil war.
When the story begins, a decade-long summer is ending, and winter looms as characters battle to claim the "Iron Throne," the seat of the king of the Seven Kingdoms, the regime that rules all but the northern tip of Westeros.
The show is divided into three major plot lines. The first covers the battle between the lords of the continent of Westeros — most notably members of the Baratheon, Lannister, and Stark families — who are involved in the fight for the Iron Throne. The second follows the rise of Daenerys Targaryen, the last member of an exiled family as she builds an army in Essos to reclaim the throne. The third plot takes place in the North of Westeros among the Night's Watch, an armed unit that guards the 300-mile-long, 70-foot-tall wall that protects the rest of the continent from the mythical creatures that lurk there.