In Season 3 of 'House of the Dragon,' the action is set to intensify with the premiere episode featuring the iconic Battle of the Gullet. Showrunner Ryan Condal has dubbed it 'arguably the craziest episode of television ever made,' a bold claim considering the series' history of epic battles like the Battle of the Bastards. Returning cast members include Emma D’Arcy as Rhaenyra Targaryen and Tom Glynn-Carney as King Aegon II Targaryen. D’Arcy noted that the season begins at '60 miles an hour,' indicating a fast-paced narrative as the war that has been building for two seasons finally unfolds. The characters will also undergo significant transformations; Rhaenyra's journey will lead her toward 'religious fanaticism,' while Aemond Targaryen is described as 'the Fifth Horseman of the Apocalypse.' The new season is based on George R.R. Martin's 'Fire & Blood' and will premiere on June 21, with episodes released weekly until August 9.