House of the Dragon Season 3 Final Trailer Reveals Major Targaryen War

HBO Max has released the final trailer for House of the Dragon Season 3, previewing a major escalation in the Targaryen civil war and setting up large-scale battles involving dragons.

The new season is scheduled to begin on June 22, 2026. It will be available on HBO Max.

The Battle of the Gullet Takes Center Stage

The trailer points to the long-awaited Battle of the Gullet, a major naval battle between the Greens, led by Aegon II Targaryen, and the Blacks, led by Rhaenyra Targaryen.

The battle was originally expected to take place in the Season 2 finale. However, showrunner Ryan Condal said it was moved because of the planned structure for Season 3 and Season 4.

With the delay, the battle is now expected to open the third season. The sequence is also expected to be larger and more elaborate than originally planned.

The Targaryen Conflict Escalates

The final trailer makes clear that the Targaryen civil war will reach a more intense phase in the new episodes. The conflict between the two sides is set to expand through major military action and increased use of dragons.

After the Battle of the Gullet, the remaining episodes are expected to focus on the consequences of the clash. The battle is described as costly for both sides and likely to change the balance of power in later conflicts.

The third season of House of the Dragon continues the story of the divided Targaryen dynasty, with the new trailer positioning the upcoming episodes around war, losses and the growing scale of the conflict.