Watch the official trailer for 'Game of Thrones' prequel 'House of the Dragon'

·1 min read

The official trailer for "House of the Dragon" is here.

The new HBO series is a "Game of Thrones" prequel based on George R.R. Martin's "Fire & Blood" series, which is set 200 years before the events of "Game of Thrones" and tells the story of House of Targaryen, the ancestors of Daenerys Targaryen (Emilia Clarke).

PHOTO: Emma D'Arcy as 'Princess Rhaenyra Targaryen' and Matt Smith as 'Prince Daemon Targaryen' star in HBO's 'House of the Dragon.' The ten-episode HBO Original drama debuts Aug. 21, 2022 on HBO and will be available to stream on HBO Max. (Ollie Upton/HBO)
PHOTO: Emma D'Arcy as 'Princess Rhaenyra Targaryen' and Matt Smith as 'Prince Daemon Targaryen' star in HBO's 'House of the Dragon.' The ten-episode HBO Original drama debuts Aug. 21, 2022 on HBO and will be available to stream on HBO Max. (Ollie Upton/HBO)

MORE: Get your 1st look at 'House of the Dragon,' the 'Game of Thrones' prequel

The trailer for "House of the Dragon" features stars Olivia Cooke as Alicent Hightower, "The Crown" actor Matt Smith as Prince Daemon Targaryen and Steve Toussaint as Lord Corlys Velaryon.

Other stars include Paddy Considine, Fabien Frankel, Eve Best, Sonoya Mizuno, Wil Johnson, John Mcmillan, Savannah Steyn and Theo Nate.

"House of the Dragon" is set to premiere on Aug. 21.

MORE: 'House of the Dragon,' the 'Game of Thrones' prequel, debuts in August

ABC News' Stephen Iervolino contributed to this report.

Watch the official trailer for 'Game of Thrones' prequel 'House of the Dragon' originally appeared on goodmorningamerica.com