ORIGINAL SIN #3.1. Now the secrets of the Marvel Universe have been unleashed, Hulk is holy mad. And all his anger is directed at Tony Stark. Iron Man is in for one incredible fight for life.

Originals Sin #3.2 After the explosive events of last issue, ask was Tony Stark responsible for creating the Hulk? The truth behind the fateful day the Gamma Bomb exploded will at last be revealed.

ORIGINAL SIN #3.3. The ultimate HULK-IRON MAN battle! The madder Hulk gets, the stronger he gets—and he's never been madder! What happens next will create a permanent rift in the AVENGERS Universe!

ORIGINAL SIN #3.4. One hero goes rogue, while another loses his head. Dr. Strange and the Punisher team up for a daring raid. All trails now lead to one suspect.

Collects Original Hulk vs. Iron Man #1-4 (aka Original Sin #3.1-3.4). Following the events of Original Sin, an explosive secret about Marvel's not-so-jolly Green Giant is revealed! What is Hulk's earth-shattering secret? And why is Tony Stark so concerned about Bruce Banner's transformation into Hulk? Everything you know about Hulk's origin story will be challenged here!