History
Much like his 616 counterpart, Bruce Banner was caught in the explosion of his own Gamma Bomb. Despite founding the Defenders, the Hulk continued to be hunted and hated in equal measure. While in Los Angeles one day, Banner tried to see his cousin Jennifer Walters but the Hulk was being stalked by a Skrull patrol while Walters was attacked by a gangster she had put away and died in the crossfire. Trying to end his life by gamma overload, he succeeded in a way. Bruce Banner died but the Hulk lived. Now a violent and uncontrollable monster, the Hulk was finally imprisoned in a dimensional void by Dr. Strange. Freed by A.I.M., the Hulk was made into little more than a guard dog for the group.