1: The fourth season of  Game of Thrones  saw massive battles , major deaths ( Tywin ! ) 2: and White Walkers , but what can fans expect Sunday as we head into a fifth season of one of the most popular shows in HBO history ? 3: The smash hit series  Game of Thrones  returns for a fifth season Sunday .
1: Game of Thrones 2: one of the most popular shows in HBO history 3: The smash hit series `` Game of Thrones