“Nothing’s more hateful than failing to protect the one you love,” intones supreme Brienne of Tarth in the first few seconds of the ‘leaked’ trailer for Game of Thrones‘ fifth season, which screened today in select IMAX theatres across America following the large-screen debut of season four’s last two episodes and is soundtracked by a terrifying cover of David Bowie’s ‘Heroes’.

Drop everything and watch it below before HBO exacts brutal revenge. Game of Thrones returns April 12th, 2015; a high-definition trailer is slated to drop in the next few days.