Before the world knew that Bruce Banner is the Hulk. Before Bruce had confessed his love to Betty Ross. Before the Hulk was green... there was Hulk: Gray. Bruce Banner's life was torn apart by the explosion of the Gamma Bomb. From that moment on, he unleashed the strongest creature on Earth - The Incredible Hulk. No matter how powerful he became, his heart could still be shattered by Betty Ross, the daughter of his greatest enemy, General "Thunderbolt" Ross. The Eisner Award-winning team of Jeph Loeb and Tim Sale continue their insightful look into the early days of Marvel Comics' most popular heroes. In Hulk: Gray they unravel the origin of the Hulk and in doing so uncover a secret that will change the way we look at Bruce Banner forever.