'Game of Thrones:' The four trailers

HBO has released a new season four trailer for "Game of Thrones," arriving April 6, which means...we have four trailers! Not to restate the obvious, but this is a full generous look at the much-anticipated new season, and therefore an opportunity to explore. Here are the four, in order, beginning with the first, and newest last. See if you can glean the fates and fortunes of our heroes and anti-heroes; and dragons too: