The first season of Game of Thrones introduces viewers to the continents of Westeros and Essos, where several noble families vie for control of the Iron Throne. The ruling king, Robert Baratheon, asks his old friend Eddard Stark to serve as Hand of the King, but Ned soon discovers that Robert's death was orchestrated by his wife, Queen Cersei Lannister. As Ned investigates the truth, he uncovers a web of deceit and betrayal that ultimately leads to his downfall.