House of the Dragon is a historical fantasy drama television series that serves as a prequel to Game of Thrones. The show is set about 172 years before the events of Game of Thrones and revolves around House Targaryen, one of the most powerful families in Westeros. The series explores the rise of the dragons, the forging of the Iron Throne, and the complicated family dynamics that ultimately lead to the downfall of the Targaryen dynasty.