In case you weren't aware, "War is coming" to "Game Of Thrones" Season 2 and this new poster proves it. Yep, that's the head of Lord Stark (Sean Bean) on a pike. So what's ahead when "Game of Thrones" returns to HBO on Sun., April 1 at 9 p.m. ET? If you're not adverse to spoilers, read on below for the Season 2 premiere episode description and check out the full poster below.