One of the most influential Iron Man stories ever told - and its thrilling sequel! A new era for Iron Man begins in the story that redefined the Armored Avenger for the 21st century! Even renowned futurist Tony Stark faces a struggle to stay ahead of the game in a landscape of terrifying new technologies that threaten to overwhelm a fragile mankind. What is Extremis? Who has unleashed it? What does its emergence portend for the world? And how will it change Iron Man's life? And when Extremis resurfaces years later, Tony's bid to put the genie back in the bottle takes him to New Camelot, where he clashes with the mech-knights of the Circle... to Colombia, where he battles familiar foes... and to Paris' ancient catacombs, where absolute horror awaits! Collecting: Iron Man (2004) #1-6, Iron Man (2012) #1-5