Game of Thrones Alternate Ending, S8E6 "Aegon's Steel"

Jon and Daenerys attack King's Landing from the air, unaware Cersei is waiting for them. Drogon is severly injured as they flee to Harrenhal. Bran is contacted bt the Children of the Forest on the Isle of Faces. Nymeria and her pack defend the injured Drogon upon his return from King's Landing.