Hollywood Reporter said that Dragons have returned to HBO.

A new trailer for the long-awaited Game of Thrones prequel series House of the Dragon has been released (below).

The series is set 200 years before the events in the original series, which became HBO’s biggest hit ever and the most Emmy-winning drama of all time.

The new series is from author George R.R. Martin (based on his book Fire & Blood) and co-creators and showrunners Ryan Condal (Colony) and Miguel Sapochnik (Finch).

Dragon stars Paddy Considine (Peaky Blinders) as King Viserys Targaryen, Olivia Cooke (Ready Player One) as Alicent Hightower, Emma D’Arcy (Wanderlust) as Princess Rhaenyra Targaryen and Matt Smith (Doctor Who) as Prince Daemon Targaryen.

The series, premiering Aug. 21, is a major initiative for HBO, which hopes to recapture some of the magic of Game of Thrones, which represented more than $1 billion in revenue during its run from 2011 to 2019. The company also has several other prequel projects set in the world of Westeros in various stages of development, and House of the Dragon performing well would be a good sign that GoT can be turned from a singular hit series into a franchise.