The reign of House Targaryen begins with this prequel to popular HBO series "Game of Thrones." Based on George R.R. Martin's "Fire & Blood," "House of the Dragon" is set nearly 200 years before the events of "Game of Thrones," telling the story of the Targaryen civil war with King Viserys I Targaryen's children battling for control of the Iron Throne.

The reign of House Targaryen begins with this prequel to popular HBO series "Game of Thrones." Based on George R.R. Martin's "Fire & Blood," "House of the Dragon" is set nearly 200 years before the events of "Game of Thrones," telling the story of the Targaryen civil war with King Viserys I Targaryen's children battling for control of the Iron Throne.

With the sinister Gellert Grindelwald (Mads Mikkelsen) wreaking havoc worldwide, the powerful wizard Professor Albus Dumbledore (Jude Law) must seek out help if he is to thwart the dark wizard's schemes before time runs out.

With the sinister Gellert Grindelwald (Mads Mikkelsen) wreaking havoc worldwide, the powerful wizard Professor Albus Dumbledore (Jude Law) must seek out help if he is to thwart the dark wizard's schemes before time runs out.