Check out the first extended trailer for 'House of the Dragon'

If you've been waiting for the Game of Thrones prequel, House of  theDragon, we finally get a better look at the series. It's going to premiere in Canada on August 21 on Crave. The show takes place approximately 300 years before the events of Game of Thrones. It also focuses on the story of the House of Targaryen. 

House of the Dragon stars Paddy Considine, Matt Smith, Olivia Cooke, Emma D'Arcy, and Fabien Frankel, among others. The series is created by Ryan Condal, Miguel Sapochnik, and A Song of Ice and Fire author George R.R. Martin. (In case you don't know, Game of Thrones was based on Martin's fantasy novel series.)