The Queen’s Justice: Preview for Game of Thrones Season 7 Episode 3 Following the second episode of Game of Thrones Season 7, HBO revealed a preview for Episode 3 of the new season, titled “The Queen’s Justice.” You can watch the preview using the player below! RELATED: Game of Thrones Comic-Con Trailer Teases Season 7 At the end of last season, Daenerys’ (Emilia Clarke) dragons and her immense army were finally on the way to Westeros, where Cersei (Lena Headey) has now become Queen after the death of her children.