HBO has released a 15 minute trailer for Game of Thrones Season 4 online. Game of Thrones Ice and Fire: A Foreshadowing aired earlier tonight just before True Detective on HBO. Game of Thrones Ice and Fire: A Foreshadowing offers a look back and a look forward to the fourth season of the hit HBO series, the show features clips from upcoming episodes, behind-the-scenes-footage, interviews with talent, and cast members' answers to questions posed by fans. Game of Thrones Season 4 will be based on the second half of A Storm of Swords, the third book in the A Song of Ice and Fire series by George R.R. Martin. The season the War of the Five Kings drawing to a close, but new conflicts popping up all over the realm. The Night's Watch face down a Wildling army, The North is in chaos, and schemes and intrigue play out, as ever, in King's Landing, all while Daenerys continues to amass her strength. Game of Thrones Season 4 premiers on HBO April 6, 2014.