Battle of the Goldway - part1 [music version]
The Lannister army and wagon train continue east, approaching a river. Jaime and Bronn are then surprised to hear what sounds like distant thunder, until they realize it must be approaching cavalry. Jaime and Randyll shout for their soldiers to form up, which they manage to do before the enemy crests over the horizon: a massive, 100,000-strong horde of Dothraki cavalry, armed to the teeth and ululating loud war cries. Bronn advises that Jaime ride ahead to King's Landing, but Jaime insists he will not abandon his men. Bronn bluntly tells him the Dothraki will quickly overwhelm the Lannister lines and Jaime is too valuable as a commander to stay and fight, but Jaime insists that they have a chance if they hold.
At that moment, the sound of thundering hooves and Jaime's determination is drowned by a massive roar, a roar not heard on the battlefields of Westeros in over a century and a half. Above the approaching Dothraki the Lannister army sees a huge adult dragon heading straight for their lines: Drogon, ridden by Daenerys Targaryen herself.