What's it about?

Game of Thrones isn't the easiest show to sum up, based as it is on the weighty tomes of fantasy writer George R R Martin. Some critics have called it The Sopranos in Middle Earth, because of the acts of violence, lust and general back-stabbery of the main families who are involved in an epic tussle for control of the Iron Throne, and comprise the warring Kingdoms of Westeros.