The lines have been drawn in final battle! In the conclusion of an epic saga that began with AVENGERS DISASSEMBLED - and extended through HOUSE OF M, CIVIL WAR and SECRET INVASION - the Marvel Universe's greatest villains are ready to make their final move against a target from time immortal: the hallowed halls of Asgard! But will the siege of Asgard be the last piece in Norman Osborn's insane bid to seize control of the globe or the proverbial bridge too far for the former Green Goblin? And will his machinations with Loki be the thing that loses the war or wins him the world? It's a story years in the making - starring Captain America, Iron Man, Thor, Nick Fury and more! Collecting SIEGE (2010) #1-4, SIEGE: THE CABAL, SIEGE DIGITAL PROLOGUE and material from FREE COMIC BOOK DAY 2009 (AVENGERS).