“Battle of the Bastards” was one of Game of Thrones’ most memorable episodes, with one of the most harrowing and visceral battles ever captured on film. This behind-the-scenes video explores how director Miguel Sapochnik (who also oversaw season five’s brutal “Hardhome”) staged the epic set-piece from start to finish.

Of course, the other players get their due—not just the actors, but also the director of photography, the production designer, the VFX supervisors, the stunt coordinator, and others. And special shout out to the Game of Thrones “horse master” for her obvious and understandable glee in getting to set up that amazing (not CGI!) cavalry charge.