HBO has released its lengthy final trailer for House of the Dragon Season 3, which features explosive sequences from the series' biggest battle to date.

House of the Dragon will being streaming new episodes weekly from June 21 onwards, and pick up the action with the long-awaited Battle of the Gullet — an event that showrunner Ryan Condal this week dubbed as "arguably the craziest episode of television ever made."

"To try to tell this story without doing the Gullet would be trying to film Lord of the Rings without doing the Battle of Helm's Deep," Condal told Entertainment Weekly, noting that the sequence had taken four years to fully realize. "If we were gonna do it, we had to do it right. And that meant dragons and ships and multiple theaters of conflict."

Well, today's trailer certainly teases some of that, with numerous dragons aflight, wooden boats alight, and Rhaenyra coming under pressure from friend and foe alike. It's available to watch over on YouTube.

Season 3 sees the return of Matt Smith, Emma D’Arcy and Olivia Cooke, alongside numerous others, including famous faces such as Spider-Man: No Way Home's Rhys Ifans, Happy Valley's James Norton, Assassin's Creed Origins' Abubakar Salim, and Fantastic Beasts' Dan Fogler.

House of the Dragon is expected to wrap up its story with a fourth and likely final season, due in 2028. Next year will see the return of A Knight of the Second Kingdoms for its second season, meanwhile. HBO owner Warner Bros. is currently going hard on its Game of Thrones franchise with a big-budget movie also in the works, Game of Thrones: Aegon’s Conquest.

In January, HBO was said to be in "very early development" on a Game of Thrones spinoff starring Arya Stark, following the collapse of a previous sequel idea that would have featured Jon Snow. A new Game of Thrones prequel is set to dramatize the events of Robert's Rebellion, and debut on the UK stage this summer.

Meanwhile, George R.R. Martin himself has said there's no plan if he dies before completing Winds of Winter, and the Game of Thrones series simply "won't be finished."

Tom Phillips is IGN's News Editor. You can reach Tom at tom_phillips@ign.com or find him on Bluesky @tomphillipseg.bsky.social